[FAST] Fastenal: Q3 2026 Earnings Preview, Key-Account Sites vs Gross Margin

Fastenal (FAST) is an industrial and construction supplies distributor that sells fasteners along with cutting tools, abrasives and safety products to manufacturing and construction customers, and it competes by putting inventory and people as close as possible to where the customer uses them, running 1,595 branches across 25 countries at the end of 2025 [1]. The company is scheduled to report on 2026-10-14 for Q3 2026 (three months ended September 30, 2026) [2]. The most recent disclosed quarter is the second quarter of 2026: net sales of $2,386.9 million, up 14.7% year over year on a daily sales basis, and diluted earnings per share of $0.33 [3]; gross margin of 44.6%, down 75 basis points from 45.3% a year earlier, while SG&A as a percentage of net sales improved from 24.4% to 23.5% [4]. For the coming quarter, management has said gross margin typically declines 10 to 20 basis points sequentially from the second quarter to the third, that product pricing should contribute in the low single digits in the second half with a possibility of reaching mid singles, and that the full-year digital sales target has been trimmed to 63-64% of total sales [5]; the company also plans 2026 net capital expenditures of $310.0 million to $330.0 million, up from the $230.6 million actually spent in 2025 [6]. The sell-side consensus aggregated by StockAnalysis.com, last updated September 16, 2026, calls for fiscal 2026 net sales of $9.29 billion and earnings per share of $1.26 [7].

Three things are worth watching in this report. First, whether customer sites spending $50,000 or more per month are still being added on a net basis: that band held 3,125 sites in the second quarter of 2026, up 16.5% year over year, with sales of $1,381.2 million, roughly 57.9% of the quarter's net sales, and monthly sales per site rising from $135,930 to $147,328 [8], which means this band largely sets the company's overall growth rate. Second, the gap between pricing and cost: the company described net price/cost as roughly a 40 basis point headwind in the second quarter, narrower than the 50 basis points in the first quarter, but management also said closing that gap will take several quarters of gradual progress [9], and gross margin is the one line in this growth cycle that has not improved alongside everything else. Third, the pace at which capital spending actually lands and how well profit converts into cash: net capital expenditures were only about $118.2 million in the first half, and second-quarter operating cash flow of $265.7 million equalled roughly 69.4% of net income of $382.8 million, a decline the company attributed to a larger use of cash for accounts receivable [10]; the second half has to absorb the remaining spend and lift the conversion rate at the same time.

Company Background and Business Structure

Fastenal was founded in 1967 in Winona, Minnesota, and sells fasteners plus non-fastener products such as cutting tools, abrasives and safety supplies to North American manufacturing and construction customers. It competes by holding goods close to the point of use: at the end of 2025 it operated 1,595 branches across 25 countries, supported by 15 regional distribution centers in North America, of which 12 are in the United States, two in Canada and one in Mexico, with two more distribution centers each in Asia and Europe, for roughly 5.3 million square feet of distribution capacity [1]. The 12 North American centers are equipped with automated storage and retrieval systems and handle about 96% of picking activity; on the inventory side, roughly 54% of stock sits at selling locations close to customers for same-day pickup, with the remaining 46% held at distribution centers and manufacturing sites [1].

Since 2025 the company has reported on customer "Sites" rather than on branches and Onsite locations, sorting them into four bands by monthly spend of $50,000 or more, $10,000 or more, $5,000 or more and everything else, and it explicitly prioritizes sites with monthly sales potential of $50,000 or more [8]. The second-quarter 2026 distribution was 3,125 sites in the $50k+ band with sales of $1,381.2 million; 12,865 sites in the $10k+ band with sales of $2,015.6 million; 20,144 sites in the $5k+ band with sales of $2,170.9 million; and 93,283 sites in total with sales of $2,386.9 million [8]. What stands out is that total site count fell year over year from 101,440 to 93,283 while average monthly sales per site rose from $6,790 to $8,529, which says the company is deliberately shifting resources away from scattered small accounts toward customers with concentrated spend [8].

The service model sits on top of the sites and is the mechanism that locks those relationships in place. FMI Technology comprises FASTStock scanned stocking locations, FASTBin infrared, RFID and scaled bins, and FASTVend vending devices, and together with eBusiness electronic procurement and e-commerce it forms what the company calls its Digital Footprint after removing overlap [11]. In the second quarter of 2026, FMI sales were $1,081.0 million or 44.6% of sales, eBusiness sales were $711.9 million or 29.4%, and Digital Footprint sales after the overlap adjustment were $1,492.9 million or 61.6% of sales, up from 61.0% a year earlier; the company signed 6,993 weighted FASTBin and FASTVend machine equivalent units in the quarter and ended the period with an installed base of 140,789 units, up 6.5% [11].

End markets are split into heavy manufacturing, other manufacturing, non-residential construction and other, with manufacturing together accounting for 75.9% of sales in the second quarter of 2026 [12]. All four end markets posted double-digit daily sales growth in the quarter: heavy manufacturing 18.1%, other manufacturing 10.8%, non-residential construction 17.0% and other end markets 14.1%, with non-residential construction growing for the fifth time in fifteen consecutive quarters; the company attributes manufacturing growth mainly to relative strength with key accounts that have significant managed spend, which is exactly where its service model and technology do the most work [12].

Financial History and Current Position

The annual record is a steady upward line. Net sales grew from $6,010.9 million in 2021 to $8,200.5 million in 2025, an 8.7% increase in 2025, with daily sales rising from $29.6 million in 2024 to $32.3 million and 254 selling days in the year [13]. On profitability, 2025 gross profit was $3,569.1 million for a 45.0% gross margin against 45.1% in 2024, SG&A was $2,035.5 million or 24.8% of sales against 25.1% in 2024, operating income was $1,655.7 million for a 20.2% operating margin, net income was $1,258.4 million and diluted earnings per share were $1.09 [13]. On cash, 2025 operating cash flow was $1,295.9 million and net capital expenditures were $230.6 million or 2.8% of sales, below that year's original $235.0 million to $255.0 million plan, which the company attributed to delayed projects that it said would resume in 2026 [6].

Into 2026, growth accelerated noticeably while gross margin moved the other way. First-quarter net sales were $2,201.7 million and second-quarter net sales were $2,386.9 million, up 14.7% year over year, with first-half sales up 13.6% [3]; gross margin fell to 44.6% for the first half from 45.2% in the first half of 2025, with the second quarter alone at 44.6% and down 75 basis points year over year, which the company attributed primarily to roughly 40 basis points of unfavorable net price/cost plus smaller headwinds from customer mix, transportation costs and the timing of supplier rebates [4]. Operating expenses moved in the opposite direction: second-quarter SG&A improved to 23.5% of net sales from 24.4% a year earlier, leaving operating income of $501.8 million, net income of $382.8 million and diluted earnings per share of $0.33 [3].

The balance sheet and cash distribution remain loose. Total debt at the end of the second quarter of 2026 was $120.0 million, or 2.9% of total capital, down from $230.0 million and 5.7% a year earlier [10]. First-half operating cash flow was $644.1 million and $600.7 million was returned to shareholders, equal to 83.1% of net income, comprising $550.9 million of dividends and $49.8 million of buybacks [10]. Looking at the second quarter alone, operating cash flow of $265.7 million was down $12.9 million year over year and equalled about 69.4% of net income, a decline the company attributed to a larger use of cash for accounts receivable reflecting strong mid- and late-quarter sales [10].

Operating Model

Revenue decomposes into site count multiplied by output per site. Net sales roughly equal the sum across spend bands of customer site count times monthly sales per site times three months, plus other sales not attributed to a specific site; in the second quarter of 2026 the $50k+ band had 3,125 sites at $147,328 of monthly sales each, contributing $1,381.2 million, the $10k+ band had 12,865 sites contributing $2,015.6 million, and all 93,283 sites together produced $2,386.9 million [8]. Three things push that equation upward: new contracts converting into new sites, deeper wallet share at existing sites, and product pricing, which contributed roughly 290 basis points to net sales in the second quarter, well above the 140 to 170 basis points a year earlier [3]. Digital Footprint sales at 61.6% of total sales and a weighted FMI installed base of 140,789 units at period end, up 6.5% year over year, are the retention mechanism that fixes those site relationships in place rather than a separate revenue stream [11].

Gross margin is pulled by four forces, and expense leverage does the offsetting. Gross profit equals net sales times gross margin, and that margin is simultaneously affected by the net gap between pricing and procurement plus import costs (roughly a 40 basis point headwind in the second quarter of 2026), a customer mix tilting toward large accounts (relationships that carry lower gross margins but larger absolute profit), transportation and fuel costs, and the timing of supplier rebates [4]. Operating income equals gross profit less SG&A, within which employee-related expense is 70% to 75% of SG&A and occupancy-related expense is 14% to 19%; the fixed-cost leverage that comes with high growth pushed SG&A from 24.4% of sales a year earlier down to 23.5%, which precisely offset the 75 basis point decline in gross margin and left operating margin slightly better year over year [4]. The company summarizes this relationship as incremental operating margin, about 21.5% in the second quarter; management called that the low point for the year and reaffirmed that the measure should reach the mid-20s over time at the current double-digit growth pace, while stating plainly that it will not jump there in the third quarter and that low-20s incremental margins are a reasonable full-year baseline [5].

Turning profit into cash has to pass through working capital first. Operating cash flow roughly equals net income plus depreciation and amortization, less the net increase in trade working capital, plus the change in payables and accruals; in the second quarter of 2026 that chain produced $265.7 million of cash, about 69.4% of $382.8 million of net income, mainly because of a larger use of cash for accounts receivable — June sales grew 20.5% year over year, net accounts receivable stood at $1,557.4 million on June 30 and grew 17.6% year over year, ahead of the 14.7% growth in net sales, while inventory of $1,735.2 million grew only 0.5% and partially offset that, leaving net trade working capital of $2,892.8 million, up 5.9% [10]. Free cash flow then has to absorb net capital expenditures: the first half included $123.0 million of property and equipment purchases against $4.8 million of disposal proceeds, against a full-year plan of $310.0 million to $330.0 million [6]. What remains goes to dividends and buybacks, $600.7 million in the first half or 83.1% of net income, while total debt is only $120.0 million or 2.9% of total capital [10].

This model only holds at the consolidated level, and several boundaries need to be stated. The company reports a single operating segment, does not disclose segment profit and loss, and does not break price and cost down by product line, so the net price/cost gap and the pricing contribution exist only as approximate basis point figures that cannot be added precisely to the other components of gross margin [4]. Customer site counts are monthly averages within the quarter, and the Sites basis adopted from 2025 does not connect directly to the earlier Onsite counts [8]. Measures such as incremental operating margin and return on invested capital come from the earnings call rather than the financial statements; among them, trailing twelve-month return on invested capital rose 180 basis points year over year into the low 30% range, on the company's own basis [9].

Industry and Competitive Position

Industrial distribution is a highly competitive and fragmented business. Fastenal's competitors include large national distributors that are stronger in densely populated areas and regional and local distributors that compete closely in smaller markets, and the company considers the main competitive factors to be customer service, price, convenience, product availability and cost reduction solutions [1]. Its differentiation is not a single product but the combination of physical stocking locations, local people and FMI devices into a service that is embedded in the customer's own process, a combination that costs more to replicate than straight price competition [1].

By the company's own estimate, the penetration runway is not used up. The potential North American industrial vending market is roughly 1.7 million devices, and the company has identified more than 13,000 traditional manufacturing and construction customer locations where the Onsite service model could be implemented, against a current weighted FMI installed base of 140,789 units [1][11]. The 2026 goal for weighted FASTBin and FASTVend signings is 27,000 to 29,000 machine equivalent units, down from a previous goal of 28,000 to 30,000, a modest downward adjustment rather than a retreat from penetration [11].

The evidence for share gains comes from several consecutive quarters of contract and site data. In the first quarter of 2026 daily sales grew 12.4% year over year, the third consecutive quarter of double-digit growth, with more than 3,600 contracts, up about 8% year over year, those customers accounting for roughly 75% of quarterly sales, sites spending $50,000 or more per month up 16.3% year over year to more than 2,900 and representing over half of total sales, and the European and Asian businesses growing nearly 24% in March [14]. By the second quarter of 2026, total contract count was up more than 7% year over year, $50k+ site count was up 16.5% and revenue from those sites grew more than 26%, with management attributing the quarter's performance to share gains rather than merely improving market conditions [9]. This line of evidence has a clear limit: the company does not disclose its own market share and provides no directly comparable peer site measure, so outsiders can only judge indirectly through contract counts, site counts and output per site on the company's own basis [8].

Core Debates

Is Fastenal's key-account expansion still adding sites and deepening wallet share, or is it starting to lean on price?

This debate matters because sites spending $50,000 or more per month contributed $1,381.2 million of sales in the second quarter of 2026, roughly 57.9% of the quarter's $2,386.9 million of net sales, so net additions and per-site penetration in this band effectively set the company's overall growth rate [8]. The transmission is direct: new contracts produce more sites in this band, site count times monthly sales per site produces the band's sales, and fixed-cost leverage then amplifies that into operating income [9]. The same mechanism also raises the weight of large accounts, and the company itself says those relationships carry lower gross margins, so the band sets both the ceiling on revenue and the floor under gross margin [4].

The current evidence can be read both ways. On the share-gain side, the $50k+ band held 3,125 sites in the second quarter of 2026 against 2,683 a year earlier, up about 16.5%, band sales rose from $1,094.1 million to $1,381.2 million, and monthly sales per site rose from $135,930 to $147,328 [8]; on the earnings call the company said total contract count grew more than 7% year over year and revenue from these sites grew more than 26% [9]. An equally valid alternative reading is that product pricing contributed roughly 290 basis points to net sales in the quarter, well above the 140 to 170 basis points a year earlier, while all four end markets posted double-digit growth [3][12], so how much of the site-level growth comes from genuine share capture and how much from pricing and a broad demand recovery cannot be fully separated from what is disclosed. The direct evidence supporting the narrower conclusion that penetration really is deepening is that monthly sales per site rose about 8.4% year over year, ahead of the 290 basis point pricing contribution, and that difference is the entire room the conclusion has [8][3].

Four readings come next, and each has an unambiguous opposite. One is whether the $50k+ site count keeps adding on a sequential net basis or reverses seasonally the way it did in late 2025 when it fell back to 2,657. Two is whether the year-over-year increase in monthly sales per site still exceeds the disclosed product pricing contribution in basis points. Three is whether heavy manufacturing daily sales hold double-digit year-over-year growth and whether the non-manufacturing end markets follow [12]. Four is whether the Digital Footprint share moves toward the company's revised 63% to 64% range [5]. If site count growth falls into the single digits while sales per site turn negative year over year, expansion and penetration have stalled together; if the band's sales growth decelerates by roughly as much as the pricing contribution decelerates, the earlier growth was mainly price [8].

With the fastener expansion project's benefit now anniversaried, can Fastenal's pricing catch up with its costs?

The weight of this debate can be measured with one conversion: at the current quarterly run rate, every 10 basis point move in gross margin is worth roughly $2.4 million of gross profit. Gross margin was 44.6% in the second quarter of 2026, down 75 basis points year over year, of which roughly 40 basis points came from the net price/cost headwind [4]. The pivot is that the company said explicitly that the gross margin offset from the fastener expansion project was essentially anniversaried by the start of the second quarter of 2026, which means the next quarter's gross margin has to be held up by pricing itself rather than by last year's project benefit [9].

The gap is indeed narrowing, but there are two explanations for why. Second-quarter gross margin of 44.6% was flat against the first quarter, the net price/cost gap narrowed from 50 basis points in the first quarter to 40 basis points, and the pricing contribution to sales growth rose from 140 to 170 basis points a year earlier to roughly 290 basis points, which looks like pricing finally catching up with cost [4][3]. An equally valid alternative reading is that the narrowing reflects lower-tariff inventory that has not yet been used up rather than a stronger pricing mechanism — the company states in its 10-Q that tariffs and import shipping costs were immaterial to net income in the first half of 2026 but warns that they may become more impactful in subsequent quarters as that lower-tariff inventory is depleted and replaced [15], which would reopen the gap without any change in the pace of price increases. What is holding the pressure back for now is expense leverage: SG&A improved from 24.4% of sales to 23.5% over the same period, and that is what let operating margin improve slightly even as gross margin fell [4].

There are four readings to watch. First, whether the sequential change in gross margin lands inside the 10 to 20 basis point seasonal decline the company describes [5]. Second, whether the net price/cost gap keeps narrowing from the 40 basis point headwind or widens again [9]. Third, whether the company's language on tariffs and import shipping costs moves from immaterial to quantified or material [15]. Fourth, whether incremental operating margin improves from about 21.5% toward the low 20s and above [5]. The opposite readings are just as clear: if the gap widens back to 50 basis points or more, a new round of cost increases is outrunning price realization; if the pricing contribution climbs into the mid single digits while gross margin still does not improve, the price increases are being fully absorbed by cost [4].

Will Fastenal's hub investment actually land in the second half, and does profit still convert into cash?

This debate ties spending pace to cash quality. The company plans to lift 2026 net capital expenditures from $230.6 million in 2025 to $310.0 million to $330.0 million, aimed at expanding distribution hub capacity, automation, IT infrastructure and FMI devices, yet it spent only about $118.2 million in the first half, leaving nearly two thirds to land in the second [6][9]. At the same time, second-quarter operating cash flow of $265.7 million was only about 69.4% of $382.8 million of net income, below the prior-year level [10]. The spending pace determines whether the company can keep taking on large customer sites, while the conversion rate determines whether this growth is being bought with working capital.

The evidence on both lines is concrete. On capital spending, the first half included $123.0 million of property and equipment purchases against $4.8 million of disposal proceeds for about $118.2 million net, only 38% of the $310.0 million low end of the full-year plan, with about $60 million of net spending in the second quarter [10][9]. On cash, second-quarter operating cash flow fell $12.9 million year over year, which the company attributed to a larger use of cash for accounts receivable: June sales grew 20.5% year over year, net accounts receivable of $1,557.4 million at June 30 grew 17.6%, ahead of the 14.7% growth in net sales, while inventory of $1,735.2 million grew only 0.5% as a partial offset, leaving net trade working capital of $2,892.8 million, up 5.9% [10]. An equally valid alternative reading is that the capital spending shortfall is not an execution problem but the natural shape of large projects such as the Atlanta hub replacement, whose spend concentrates in the second half, and the company also came in below its original plan range in 2025 because of delayed projects [6]; but if the second half still does not accelerate, timing stops being an explanation.

The test can be stated precisely: whether cumulative net capital expenditures pass half of the low end of the full-year plan by the end of the third quarter, whether operating cash flow as a percentage of net income recovers from about 69.4%, whether the gap between accounts receivable growth and net sales growth narrows, and whether inventory growth stays well below sales growth [10]. In terms of transmission, hub capacity and automation determine whether the company can take on more large customer sites without sacrificing delivery frequency; the spending consumes free cash flow first and then works through picking efficiency and transportation costs into cost of sales and SG&A, while longer payment terms at large accounts directly depress the cash conversion of profit [8]. If full-year net capital expenditures again come in below the low end of the plan and delayed projects are again the reason, expansion capacity is constrained; if the conversion rate stays below 70% for two consecutive quarters, growth is coming at the cost of working capital [10].

Risks and Falsifiers

International expansion is one of the three growth pillars the company names, but it says this expansion requires significant financial capital investment over multiple years before reaching profitability, and that the North American core has to fund it with financial discipline in the meantime [9]. The exposed financial lines are operating expense and free cash flow: the 2026 net capital expenditure plan has already risen from $230.6 million in 2025 to $310.0 million to $330.0 million, and international spending stacks on top of that base [6]. What would falsify the current understanding is the company disclosing a standalone profitability measure for the international business, or explicitly fitting international expansion spending inside the existing capital expenditure range without raising it.

Chief Executive Officer Dan Florness stepped down after the second-quarter 2026 earnings call, which was his final earnings call after thirty years with the company, leaving uncertainty about the pace of execution on existing strategy during the handover [9]. The exposed financial lines are net sales and operating margin: share capture depends on the established combination of decentralized decision-making, profit-and-loss accountability and internal promotion, and the current double-digit growth is built on that mechanism. If contract count, $50k+ site count and the Digital Footprint share all continue their prior trends in the next disclosure, the transition has not affected execution [8][11].

A rising share of large customer sites structurally dilutes gross margin, because the company itself says those relationships carry lower gross margins [8]. The exposed financial line is gross margin: second-quarter 2026 gross margin was 44.6%, down 75 basis points from 45.3% a year earlier, and customer mix is one of the causes the company lists [4]. If the $50k+ share of sales keeps rising while gross margin is flat or improves sequentially, fixed-cost leverage has already offset that structural dilution.

Once lower-tariff inventory is depleted, the effect of tariffs and import shipping costs on the income statement could move from immaterial to a real drag. The company says this was immaterial to net income in the first half of 2026 but warns that it may become more impactful in subsequent quarters, and the net price/cost gap is already a 40 basis point headwind [15][4]. If the company still describes the effect of tariffs and import shipping costs as immaterial in the next quarter and the net price/cost gap keeps narrowing, this concern is falsified.

Large accounts pay on longer terms, so the more revenue tilts toward them, the more likely accounts receivable growth persistently outruns sales growth [8]. The exposed financial line is operating cash flow: second-quarter cash flow was about 69.4% of net income, and the company attributed the decline primarily to a larger use of cash for accounts receivable [10]. If accounts receivable growth falls below net sales growth while the $50k+ share of sales keeps rising, this risk is falsified.

What to Watch Next

• Key-account site expansion, site count: 3,125 sites in the $50k+ band in the second quarter of 2026, up 16.5% year over year; watch for continued sequential net additions, with single-digit year-over-year growth alongside negative per-site sales growth falsifying continued expansion [8].
• Key-account site expansion, penetration versus price: monthly sales per site of $147,328 against a pricing contribution of roughly 290 basis points; watch whether the per-site increase still exceeds the pricing contribution, because convergence would say growth is coming from price rather than penetration [8][3].
• Key-account site expansion, Digital Footprint: 61.6% of sales in the second quarter of 2026; watch for progress toward 63% to 64%, with a stall or decline marking a departure from the path the company laid out [11][5].
• Pricing versus cost, gross margin: 44.6% in the second quarter of 2026, down 75 basis points year over year; watch whether the sequential decline stays inside 10 to 20 basis points, since a materially larger decline departs from the seasonality the company describes [4][5].
• Pricing versus cost, net price/cost gap: roughly a 40 basis point headwind, narrower than 50 basis points in the first quarter; watch whether it keeps narrowing or widens again, with a return to 50 basis points or more falsifying convergence [9].
• Pricing versus cost, tariff language: immaterial to net income in the first half of 2026; watch for a change to quantified or material, which would confirm a step up in cost pressure [15].
• Hub investment and cash conversion, cumulative net capital expenditures: about $118.2 million in the first half against a full-year plan of $310.0 million to $330.0 million; watch whether more than half the low end is spent by the end of the third quarter, with another full-year shortfall caused by delayed projects confirming constrained expansion capacity [6][10].
• Hub investment and cash conversion, operating cash flow as a percentage of net income: about 69.4% in the second quarter of 2026; watch for recovery, with two consecutive quarters below 70% confirming that growth is being funded by working capital [10].

Conclusion

Fastenal's business compresses into one sentence: put inventory and people at the customer's door, lock the relationship in with contracts and FMI devices, then grow revenue through site count and output per site. The current financial state is strong growth, weak gross margin and tight cash conversion — second-quarter 2026 net sales of $2,386.9 million grew 14.7% year over year, gross margin of 44.6% fell 75 basis points, and operating cash flow was only about 69.4% of net income [3][4][10]. The unresolved relationship is that the large accounts pushing growth into double digits are the same accounts depressing gross margin and cash conversion, so growing faster and earning more cleanly do not automatically move in the same direction under the current structure.

Two independent commentaries published after the results land on opposite ends of that tension. Petr Huřťák of StockStory wrote on July 14, 2026 that second-quarter revenue of $2.39 billion grew 14.7% year over year and came in 1.9% above analysts' consensus estimates with operating margin holding at 21%, but that sell-side analysts expect revenue to grow only 9.8% over the next twelve months, close to the company's 9% compound annual growth rate over the past five years and well below the rate just posted [16]. Zacks Equity Research put the emphasis on the other side on July 21, 2026: execution is solid with 15.9% earnings growth and 14.7% sales growth, but gross margin contracting 75 basis points to 44.6% offsets part of that benefit, and a 33.76x forward earnings multiple together with a PEG ratio of 2.9 means the market has already priced in sustained high execution, leaving limited room for error [17]. The two do not disagree about what has already happened; they disagree about which side gives first. StockStory's framing implies growth reverting toward its longer-run rate, which maps onto the key-account site expansion debate, while the Zacks framing treats whether gross margin can stop falling as the variable that decides whether the premium holds, which maps onto the pricing-versus-cost debate. Both are outside interpretations rather than disclosed company facts, and neither is a vote on the outcome.

What would genuinely change the current understanding is a combination of observations rather than any single number. If the third quarter shows continued sequential net additions in the $50k+ site count, a year-over-year increase in monthly sales per site still running ahead of the quarter's pricing contribution, a sequential gross margin decline inside the 10 to 20 basis points the company describes, and operating cash flow recovering from about 69.4% of net income, then the reading that share capture is driving growth with manageable structural pressure is materially strengthened [8][5][10]. Conversely, if site count growth falls into the single digits, the net price/cost gap widens again from 40 basis points, the company's language on tariffs and import shipping costs changes away from immaterial, and cumulative net capital expenditures are still below half the low end of the full-year plan at the end of the third quarter, then the current understanding is weakened on revenue, gross margin and cash at the same time [4][15][6]. Both sets of readings will appear in the 2026-10-14 disclosure and can be checked line by line.

Sources

[1] FAST 10-K filed 2026-02-05 · Item 1 Business · 2026-02-05 · 10-K · https://www.sec.gov/Archives/edgar/data/815556/000081555626000009/0000815556-26-000009-index.htm

[2] Drillr earnings calendar entry for FAST dated 2026-10-14, calendar last updated 2026-09-16 · 2026-09-16 · earnings calendar (Drillr)

[3] FAST 10-Q filed 2026-07-16 · 2026-07-16 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000815556&type=10-Q&dateb=&owner=include&count=10

[4] FAST 10-Q filed 2026-07-16 · Gross Profit and SG&A · 2026-07-16 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000815556&type=10-Q&dateb=&owner=include&count=10

[5] FAST Q2 2026 earnings call 2026-07-14 · guidance · 2026-07-14 · earnings call · https://investor.fastenal.com/news-releases/news-details/2026/Fastenal-Company-Reports-2026-Second-Quarter-Earnings/default.aspx

[6] FAST 10-K filed 2026-02-05 · 2026 capital plan · 2026-02-05 · 10-K · https://www.sec.gov/Archives/edgar/data/815556/000081555626000009/0000815556-26-000009-index.htm

[7] StockAnalysis.com FAST analyst forecast retrieved 2026-09-16 · 2026-09-16 · StockAnalysis.com (sell-side consensus aggregator) · https://stockanalysis.com/stocks/fast/forecast/

[8] FAST 8-K filed 2026-07-14 · Customer Sites and Sales Segmentation · 2026-07-14 · 8-K · https://www.sec.gov/Archives/edgar/data/0000815556/000081555626000037/ex_99106302026earningsrele.htm

[9] FAST Q2 2026 earnings call 2026-07-14 · operating highlights · 2026-07-14 · earnings call · https://investor.fastenal.com/news-releases/news-details/2026/Fastenal-Company-Reports-2026-Second-Quarter-Earnings/default.aspx

[10] FAST 10-Q filed 2026-07-16 · Liquidity and Capital Resources · 2026-07-16 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000815556&type=10-Q&dateb=&owner=include&count=10

[11] FAST 8-K filed 2026-07-14 · Digital Technology · 2026-07-14 · 8-K · https://www.sec.gov/Archives/edgar/data/0000815556/000081555626000037/ex_99106302026earningsrele.htm

[12] FAST 8-K filed 2026-07-14 · End market and customer daily sales · 2026-07-14 · 8-K · https://www.sec.gov/Archives/edgar/data/0000815556/000081555626000037/ex_99106302026earningsrele.htm

[13] FAST 10-K filed 2026-02-05 · 2026-02-05 · 10-K · https://www.sec.gov/Archives/edgar/data/815556/000081555626000009/0000815556-26-000009-index.htm

[14] FAST Q1 2026 earnings call 2026-04-13 · 2026-04-13 · earnings call · https://investor.fastenal.com/news-releases/default.aspx

[15] FAST 10-Q filed 2026-07-16 · Tariffs and import shipping costs · 2026-07-16 · 10-Q · https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000815556&type=10-Q&dateb=&owner=include&count=10

[16] StockStory 2026-07-14 · 2026-07-14 · StockStory (Petr Hurtak) · https://finance.yahoo.com/markets/stocks/articles/fastenal-nasdaq-fast-q2-cy2026-122152588.html

[17] Zacks Equity Research 2026-07-21 · 2026-07-21 · Zacks Equity Research · https://finance.yahoo.com/markets/stocks/articles/fast-stock-too-expensive-growth-160100965.html