STT — Q3 2026 Financial Report Analysis

Record fees and a 21% rise in interest income lifted State Street's Q3 2026 EPS 33% to $3.69

State Street is a custody bank: it holds and keeps the books for securities owned by pension funds, mutual funds, ETFs and insurers, and it also runs one of the world's largest asset managers (State Street Investment Management, home of the SPDR ETFs). Most of its revenue is fees charged on the size of the assets it looks after, not interest on loans.

In the third quarter of 2026 (July–September), total revenue rose 12.9% to $4.00 billion, net income rose 26.6% to $1.09 billion, and diluted earnings per share rose 32.7% to $3.69. Servicing fees and management fees both hit quarterly records, net interest income grew 21% on a wider margin, and expenses grew 7.6% — so revenue outran costs by 5.3 percentage points, what the company calls its eleventh straight quarter of positive "operating leverage." Against the record Q2, though, revenue slipped 1.1%: foreign-exchange trading fell 14% and the "other fee" line dropped 29%.

This analysis is based on the earnings release and its financial addendum, filed on Form 8-K on October 14, 2026. The full Q3 10-Q has not been filed yet, so the cash flow statement and the detailed management discussion it contains are not covered here.

Key figures

Pre-tax margin is the share of revenue left after expenses and credit provisions, before income tax. ROTCE is annualized profit to common shareholders divided by their equity excluding goodwill and intangibles. NIM is on a fully taxable-equivalent basis, as State Street reports it. State Street does not publish an efficiency ratio; its own profitability yardstick is pre-tax margin.

First nine months of 2026: revenue $11,848M (+15.3%), expenses $8,090M (+9.1%), net income $2,938M (+33.7%), diluted EPS $9.82 vs. $6.98 (+40.7%).

Fee revenue: records in the core lines, weakness in the volatile ones

Servicing is the biggest line and the least exciting one to watch, which is the point: it grew 9.9% while the assets it is charged on (AUC/A) grew 15% to a record $59.2 trillion. Fees growing more slowly than assets is normal in custody — large clients negotiate lower rates as their balances grow, and part of AUC/A is valued with a one-month lag — but it means the asset headline overstates the revenue effect. New servicing fee wins were $68 million of estimated annual revenue, and $332 million of already-won annual fees, tied to $2.98 trillion of assets, are still waiting to be moved onto State Street's platform.

Management fees rose 20% because AUM is up 16% and averaged higher during the quarter. FX trading had record client volumes (+31%) but earned less per dollar of volume than in Q2, because less of it came from emerging-market currencies, which carry wider spreads.

Net interest income: up a lot on the year, flat on the quarter

Net interest income (NII) is what State Street earns on the cash and bonds it holds — mostly client deposits it parks at central banks and in high-grade securities — minus what it pays on those deposits and its borrowings. Net interest margin (NIM) expresses NII as a percentage of interest-earning assets. A NIM near 1% is low by bank standards because State Street lends relatively little.

NII rose 21% to $864 million, "reflecting an increase of 16 basis points in NIM." Interest expense fell faster (-6.9%) than interest income (-0.1%), so cheaper funding, not a bigger balance sheet, did the work. Against Q2, NII was "relatively flat" — the release says a longer quarter (more days of interest) offset a 1 bp drop in NIM and "a modest decline in average interest-earning assets." Average deposits were $271.1 billion, up 6.5% on the year and flat on the quarter. Credit is a minor factor: State Street released $4 million of reserves ("associated with commercial loan sales and repayments") against a $9 million charge a year ago, and charged off $5 million.

What the headline numbers hide

• No adjustments to strip out. State Street reported no "notable items" (its term for one-offs such as repositioning or legal charges) in Q3 2026, Q2 2026 or Q3 2025, so GAAP and adjusted results are the same. The 26.6% profit growth is not flattered by a weak year-ago comparison, unlike Q2, whose 56% gain was helped by $138 million of charges in Q2 2025.
• About 4 points of the EPS growth came from buybacks. Net income available to common shareholders rose 28.4%; EPS rose 32.7% because the diluted share count fell 3.1% to 279.3 million. The tax rate (21.5% vs. 21.9%, on "higher discrete benefits") added only about $6 million.
• The "other fee" drop is mostly an accounting swing. Market-related adjustments were -$3 million this quarter vs. +$29 million a year ago and +$23 million in Q2 (per the earnings presentation). That $32 million swing explains most of the $41 million year-over-year decline in that line.
• Q3's sequential expense dip is partly timing. Total expenses fell 1.5% from Q2, but compensation fell 3.2% "primarily reflecting lower performance-based incentive compensation." Year over year, technology spending (information systems and communications, +14.9%) is the fastest-growing cost, which the release attributes to "technology and infrastructure investments and volume-related costs."
• Currency was a slight net help. Translation cut revenue by $10 million but cut expenses by $14 million vs. a year ago.
• Cash conversion can't be checked yet. The earnings release has no cash flow statement; that comes with the 10-Q.

Takeaway: This was a clean quarter — no one-offs in either year — and it puts State Street at a 34.6% pre-tax margin, essentially at its 35% medium-term target already. But the drivers are shifting: NII has stopped growing sequentially, and AUM added only $28 billion in Q3 after a $658 billion Q2, so the next leg of growth has to come from new business and fee wins rather than markets and rates.

Capital and shareholder returns

The standardized CET1 ratio — the regulator-defined cushion of core equity against risk-weighted assets — was 11.0%, up 0.2 points from Q2 on earnings and lower risk-weighted assets, and in line with the ~11% the company targets. State Street returned $651 million to common shareholders ($400 million of buybacks and $251 million of dividends at the newly raised $0.92 per share), about 63% of the quarter's $1,030 million of profit to common holders — below the ~80% total payout ratio in its medium-term framework. Book value per share rose 5.9% to $90.37 and tangible book value 7.4% to $59.69. The company also announced an agreement to acquire the Santander CACEIS Latam securities-services joint venture, subject to approvals; the release gives no price.

Did last time's read hold up?

Our Q2 2026 report flagged three things to watch. NII growth: it stalled as feared — NII was up only 0.5% from Q2 and NIM slipped another basis point, though year-over-year growth (21%) remained strong. The installation backlog: servicing fees grew 9.9%, a step down from Q2's 12.6%, and the release again credits "organic growth and higher average market levels" together, so it is still hard to separate new business from markets; the to-be-installed pile grew to $2.98 trillion from $2.93 trillion. Expense growth: it eased to 7.6% from about 10% underlying in Q2, now in line with the full-year guide.

Outlook

Management raised its full-year 2026 outlook again (earnings presentation, excluding notable items):

The assumptions are global equity markets "flat from current levels" and interest rates "broadly aligned with current forward interest rates." Applied to 2025's reported NII of $2,960 million, the NII range implies a fourth quarter of roughly $845–875 million, against $864 million in Q3 — i.e. management is not counting on further sequential NII growth.

Our read: Raising guidance with one quarter left mostly locks in what Q3 already delivered; the more useful signal is that the fee guide now rests on flat markets from a high starting point (the company's quarter-end share price was $174.59, up 50% in a year, which tells you how much market appreciation is already in the numbers). With NII plateauing and markets doing less of the lifting, the things to watch in Q4 are servicing-fee growth relative to AUC/A growth (evidence the backlog is converting), whether ETF inflows keep offsetting cash-fund outflows at the asset manager, and whether the payout ratio moves up toward the 80% framework now that CET1 is back at 11%.

Source: State Street Q3 2026 earnings release (Exhibit 99.1), financial addendum (Exhibit 99.2) and earnings presentation, filed on Form 8-K on October 14, 2026. ROTCE and FTE NIM are non-GAAP measures as presented by the company.