Which ETF Issuers Benefit Most From Custody Fee Compression as Servicing Competition Intensifies?

In late 2025, Northern Trust joined the ICE ETF Hub — a centralized platform for ETF creation and redemption processing — intensifying a back-office battle that has been quietly reshaping the economics of fund servicing. With BNY Mellon, State Street, and Broadridge already competing aggressively on custody and administration pricing, servicing fees are compressing at a pace that rewards scale and punishes subscale operators. For ETF issuers, this is a tailwind: lower servicing costs flow directly to operating margins and fund expense ratios. The question is which issuers capture the most benefit.

Why This Theme Matters Now

The ETF industry crossed $10 trillion in U.S. assets in 2025, and the infrastructure supporting it is undergoing a structural shift. Custody and fund administration — historically opaque, relationship-driven businesses — are being commoditized by platform competition. ICE's ETF Hub, BNY Mellon's digital asset custody platform, and Broadridge's back-office automation suite are all vying for market share by cutting fees and bundling services. Northern Trust's decision to join the ICE ETF Hub signals that even the most established custodians see platform integration as inevitable. For ETF issuers, every basis point saved on servicing fees either widens margins or enables lower expense ratios to attract flows — a competitive advantage in a market where fee sensitivity is extreme.

The Companies: Who Benefits Most

We examined five companies across the ETF value chain — from the largest issuer to the infrastructure providers driving fee compression — to assess where custody fee savings matter most to the bottom line.

1. BlackRock (BLK) — The Scale Beneficiary

The world's largest ETF issuer, with iShares commanding nearly $5 trillion in AUM and $527 billion in net inflows in 2025 alone. BlackRock's sheer scale gives it the strongest negotiating position on custody fees.

BlackRock's base fee run rate entering 2026 is approximately 35% higher than 2024, driven by record organic growth. With nearly 150 products exceeding $1 billion in flows, even a 0.1 basis point reduction in custody costs across this asset base translates into tens of millions in annual savings. Management is targeting a 45%+ adjusted operating margin, and servicing fee compression directly supports that trajectory. The risk is that BlackRock's dominance already prices in most structural advantages.

BlackRock is the clearest beneficiary of custody fee compression — its unmatched scale converts basis-point savings into material margin expansion.

2. Invesco (IVZ) — The Margin Expansion Play

Invesco manages over $2.1 trillion in assets, including QQQ — one of the most traded ETFs globally with over $400 billion in AUM. The 2025 modernization of QQQ from a unit investment trust to an open-end ETF structure unlocked lower operating costs and more efficient servicing.

Invesco is in the midst of a margin expansion story: the company is migrating to a hybrid Alpha investment platform, recapitalized its balance sheet by repurchasing $1.5 billion in preferred stock, and is targeting continued operating margin improvement in 2026. Custody fee compression is particularly impactful for Invesco because its ETF franchise — led by QQQ — carries some of the highest trading volumes in the industry, amplifying the savings from lower per-unit servicing costs. Q4 2025 reported a large impairment charge, but underlying adjusted operating margin reached 34.2%.

Invesco offers the most operating leverage from servicing fee reductions — its high-volume QQQ franchise magnifies every basis point saved.

3. Northern Trust (NTRS) — Playing Both Sides

Northern Trust is both a major ETF custodian and a growing ETF issuer, having launched 11 new ETFs in 2025 and expanded its SMA fixed income suite. Its decision to join the ICE ETF Hub is defensive — protecting its custody franchise — but also positions it to benefit as an issuer.

Northern Trust achieved five consecutive quarters of positive organic growth, with pretax margin expanding nearly 200 basis points. The company's AI deployment (150+ use cases) and client-centric operating model reorganization are driving over 4% productivity savings annually, with targets rising 10% in 2026. As a custodian, NTRS faces fee pressure; as an issuer, it benefits from it. Net-net, its dual positioning and productivity gains should offset margin compression on the servicing side.

Northern Trust's dual role creates a natural hedge — it loses on custody pricing but gains on its own ETF issuance costs. The productivity push tips the balance positive.

4. State Street (STT) — SPDR's Scale Advantage, Custody's Margin Risk

State Street operates SPDR — the third-largest ETF brand globally — while simultaneously being one of the two dominant ETF custodians. It launched 134 new investment products in 2025 and achieved $500 million in productivity savings.

State Street delivered record performance in 2025: EPS grew 23% YoY in Q3, pretax margin reached 31%, and the company secured over $1 trillion in new AUC/A servicing wins. However, custody fee compression is a double-edged sword for STT. Its servicing segment faces pricing pressure, but its SPDR ETF franchise benefits from lower operating costs. Management's 2026 guidance of 4-6% fee revenue growth and 100+ basis points of positive operating leverage suggests confidence that scale advantages and productivity savings can absorb the custody headwind.

State Street's SPDR franchise benefits from fee compression, but its custody business absorbs the blow — making the net impact roughly neutral at current margins.

5. BNY Mellon (BK) — The Custodian Under Pressure

BNY Mellon is the world's largest custodian bank with $55.8 trillion in assets under custody, providing ETF servicing to dozens of issuers including major platform clients like WisdomTree and Franklin Templeton.

BNY reported record 2025 results — $5.3 billion in net income, 26% return on tangible common equity, and 507 basis points of positive operating leverage. The company is investing aggressively in tokenization, stablecoins, and digital custody. But as the largest custodian, BNY sits squarely on the wrong side of fee compression. Its platform innovations (digital asset custody, Dreyfus Stablecoin Reserves Fund) are designed to create new revenue streams that offset traditional custody fee erosion. Medium-term targets of 38% pretax margin and 28% ROTCE suggest management believes it can grow through the compression.

BNY Mellon faces the most direct margin pressure from custody fee compression but has the scale and innovation pipeline to partially offset it.

The Verdict: Ranking the Picks

Invesco (IVZ) stands out as the highest-leverage beneficiary — its QQQ franchise magnifies servicing savings, and at 8.9x forward P/E, the market hasn't fully priced in its margin expansion story. BlackRock (BLK) is the safest way to play the theme, with unmatched scale converting every basis point of fee reduction into material savings, though its 17.5x forward P/E reflects that advantage. Northern Trust (NTRS) offers an intriguing hedge — its dual positioning as custodian and issuer, combined with aggressive productivity gains, should net positive. State Street (STT) is roughly neutral — SPDR benefits offset custody headwinds. BNY Mellon (BK) faces the most headwind as a pure custodian but trades at a discount that may compensate for the risk.

Risks to Watch

• Consolidation among custodians could reverse fee compression if the market becomes less competitive
• Regulatory changes to ETF structure or custody requirements could alter the cost equation
• Market downturn would shrink AUM-linked fees, overwhelming any basis-point savings on servicing costs

What to Monitor

• ICE ETF Hub adoption rates and new custodian entrants — accelerating adoption validates the fee compression thesis
• Invesco's QQQ expense ratio trajectory post-conversion — a concrete signal of servicing savings flowing to the fund level
• BNY Mellon and State Street custody fee disclosures in 2026 earnings — watch for accelerating revenue-per-AUC declines