Golub Capital BDC, Inc. (GBDC) Earnings

Management highlights

- Portfolio Composition & Diversification: The $8.2 billion portfolio is highly granular, with an average position size of less than 0.2% of total portfolio value; the top 10 investments make up just 13% of the portfolio, less than half the average peer concentration. The portfolio is diversified across 51 industry subsectors, with software as the largest exposure at 26% of the portfolio. GBDC acted as sole or lead lender on 99% of transactions in the quarter, and 78% of new origination volume supported M&A-driven transactions. - AI Risk Assessment of Software Portfolio: GBDC completed a full re-underwrite of its entire software portfolio, supported by an independent third-party AI risk assessment paid for by the asset manager (not GBDC). Internal analysis found less than 10% of the software portfolio faced elevated AI disruption risk, while the third-party assessment concluded fewer than 3% faced elevated risk. Management notes GBDC's software underwriting focus on deeply embedded enterprise systems with high switching costs results in far lower AI risk than the broader software industry. - Balance Sheet & Capital Structure: GBDC maintains strong liquidity with $2 billion of available liquidity from unrestricted cash and undrawn credit commitments, covering 1.3x of unfunded commitments and upcoming near-term debt maturities. Subsequent to quarter-end, GBDC extended the maturity of its syndicated corporate revolver to July 2031, maintained total $2 billion in commitments (with an accordion to expand to $3 billion), and removed the 10bps term SOFR credit spread adjustment, retaining one of the most competitively priced revolvers among listed BDC peers. Weighted average borrowing cost of 5.3% remains one of the lowest in the peer group, supported by GBDC's investment-grade rating. Weighted average maturity of outstanding debt is 4.8 years, exceeding the 3.1 year weighted average maturity of accruing investments, reflecting prudent asset-liability matching. - Capital Allocation: GBDC continued its opportunistic share repurchase program, buying back 1.1 million shares at a weighted average price of $12.90 per share (a ~10% discount to prior quarter NAV). Affiliated Golub Capital Rabbi Trust purchased an additional $31 million (2.4 million shares) during the quarter, bringing affiliate share holdings to ~8% of outstanding shares, aligning manager and investor interests. The board declared a $0.33 per share distribution for the next quarter, matching the prior quarter's distribution.

Guidance

- Management reaffirms two core market themes: the direct lending market has shifted from borrower-friendly to lender-friendly, with new deal spreads up 25 to 50bps amid the shift, and elevated industry-wide credit stress will continue to act as a sector headwind. - M&A activity improved modestly in Q2 2026 versus Q1, but remains well below normal levels; management expects M&A volumes will increase further over coming quarters, which will drive additional improvement in new loan pricing and terms for private credit lenders. - Management expects GBDC to outperform peer BDCs in the current credit stress environment, supported by its focus on resilient first lien loans, strong underwriting, and early problem credit identification. - Management characterizes the current environment as a "Darwinian moment" for private credit, where firms with sustainable competitive advantages and diversified long-term capital bases will gain market share from weaker competitors.

Segment performance

GBDC operates as a single investment segment focused on middle market corporate loans. As of June 30, 2026, GBDC's total portfolio investments had a fair value of $8.2 billion, spread across 424 distinct borrowers: 94% of new investments in the quarter were first lien senior secured debt, with junior debt and equity representing a small minority share of the overall portfolio. Key financial results for the quarter: adjusted net investment income (NII) per share was $0.34, annualized adjusted NII return on equity (ROE) was 9.5%. Adjusted net income per share was $0.22, translating to an annualized adjusted ROE of 6.2%. Net asset value (NAV) per share declined slightly to $14.25 from $14.35 in the prior quarter. Net debt to equity leverage ended the quarter at 1.23x, down 0.01x quarter-over-quarter. Annualized investment income yield was 9.9% (up 20bps sequentially), and annualized borrowing cost held steady at 5.3%, resulting in an annualized net investment spread of 4.6% (up 10bps quarter-over-quarter). Non-accrual investments represented 1.9% of the portfolio at fair value, 87% of the portfolio by fair value remained in GBDC's highest performing internal rating categories.

Risks & headwinds

- The market is in an extended period of elevated credit stress, which is expected to drive lower industry ROE and increased performance dispersion across BDC managers. - Elevated mortgage rates have reduced home sale and moving volumes, creating ongoing pressure on home services-related portfolio companies, though management expects this issue to eventually self-cure. - AI disruption creates winners and losers in the large software portfolio segment, with a small subset of software borrowers facing elevated risk of product displacement. - The broader US economy is experiencing moderate muddling growth, with potential downside risk from geopolitical events such as the conflict in the Middle East. Tail risk from underperforming credits is still being identified across the industry, though management believes it has already identified most at-risk credits in its own portfolio.

Analyst Q&A

• Q: What drove the decision to prioritize share repurchases and deleveraging over new investments, and will this preference continue?

  A: Slow loan payoffs in the quarter created a tradeoff between capital allocation options, leading management to prioritize repurchases and modest deleveraging. Management expects payoff volumes will increase, giving more flexibility to pursue both new investments and repurchases while maintaining target leverage. Buying GBDC shares trading at a discount to NAV is viewed as an attractive use of capital.

• Q: What spread and term changes have you seen on new deals versus last quarter, amid the market shift to lender-friendly terms?

  A: 2026 M&A volumes have been lower than initially expected, with only a modest recovery in Q2 after a Q1 decline, which has partially mitigated spread widening. Even so, new deal spreads have improved 25 to 50bps, with additional improvements to non-price terms and lower leverage levels for new loans. Management expects further improvements in terms as M&A volumes recover in coming quarters.

• Q: How well identified is the tail of at-risk credits in GBDC's portfolio, compared to the broader industry in this credit cycle?

  A: GBDC prioritizes early identification of problem credits, which opens more options to mitigate losses and allows more accurate valuation of at-risk positions. Management believes most of the tail of challenged credits in GBDC's portfolio has already been identified, but expects many peer firms have not yet fully identified or marked their own at-risk credits, which will become apparent over coming quarters.

• Q: Were the new software non-accruals all tied to AI risk, and what explains the difference between internal and third-party AI risk estimates?

  A: There are multiple factors behind software underperformance, including integration issues from recent acquisitions, but AI is a meaningful contributing factor for some. The difference between internal and third-party numbers stems from different grading scales, not a material disagreement; the key takeaway is that both assessments found the share of elevated risk loans to be very low, driven by GBDC's historical underwriting focus on resilient enterprise software.

• Q: How large is the secondary market loan opportunity for GBDC this quarter?

  A: Golub Capital has led private credit secondary sales and trading for over a decade, a competitive advantage that helps resolve lender imbalances for sponsor clients and creates attractive buying opportunities. Platform-wide secondary activity hit a record $2 billion in the first half of 2026, but it was not a meaningful source of new investment for GBDC specifically in Q2.