State Street Corporation (NYSE:STT) closed at $174.96 on October 9. The stock has returned 25.5% during the last 6 months, compared to a 24.3% return for the Insider Monkey Billionaire Index and 15.1% for State Street SPDR S&P 500 ETF Trust.
The Bank of New York Mellon Corporation (NYSE:BNY) closed at $142.71 and has returned 11.9% over the same six months. Northern Trust Corporation (NASDAQ:NTRS) closed at $168.21 and has returned 10.5% over the same six months. State Street cleared both benchmarks over that period. Neither of the other two did.
None of the three earns more than a rounding error on its assets, which is the defining fact about custody banking. These are not banks in the way the word is normally used. They are record keepers paid a toll on other people’s money, and every number below follows from that.
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The Business Is Leverage by Design:
Return on assets is 1.28% at Northern Trust, barely lower at BNY and 0.87% at State Street. Those are tiny figures, and they are meant to be. A custodian holds other people’s securities and charges a small fee to keep them safe, which will never look impressive against the size of what it is holding.
Those slim returns only add up because the balance sheet is enormous. Earning roughly one percent on a pile that large is how a custodian turns a thin margin into a double-digit return for shareholders. The moat is how hard it is to leave, not price. Moving custody of a large pension fund takes months of work, so these relationships rarely change hands once won. A business that has to be judged on two numbers at once is not unusual, and the same is true across the undervalued quality companies we ranked as well.
Operating margins reflect that stability, at 42.50% for Northern Trust and lower at BNY and then State Street. Tiny returns on assets alongside strong returns on equity will mislead anyone who checks only one of them.
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Northern Trust Leads, With One Exception:
Revenue grew 36.40% at Northern Trust in the most recent quarter, roughly double the rate at either of the others. Earnings grew 88.00%, the best of the three. It is also the cheapest on trailing earnings and carries the highest return on equity at 17.07%, which makes it the strongest of the group on almost every operating measure.
One figure cuts the other way. Northern Trust spent more on investment than it generated in operating cash, which for a bank says more about timing than trouble. The smallest of the three is investing hardest.
The shared risk is interest rates. A large part of what these banks earn comes from interest and from fees on cash balances, and both shrink when rates fall. Fees fixed by contract hold up where that income does not, and it is the contracted kind that underpins the undervalued stocks we found with real profits. The leader there has returned 16% since.
The Valuation Case:
State Street trades at 11.30 times forward earnings, against 13.09 for Northern Trust and 13.90 for BNY Mellon, on analyst consensus estimates. The gap is narrow. Northern Trust costs about sixteen percent more than State Street while growing revenue at roughly twice the rate, which makes that premium a modest price for the better business.
The verdict is that State Street is the cheapest and Northern Trust is the one worth paying up for. None of the three is expensive. The sector is priced for expected rate cuts rather than for fee income already under contract, and that contracted revenue is the quietest form of safety a dividend can have. That is the quality running through the blue chip names hedge funds rely on for income, where the most crowded holding is up 23% since.
Conclusion:
The best operator of the three is not the cheapest, which is the trade on offer. Northern Trust carries the strongest operating margin and return on equity, and its revenue and earnings grew faster than at either of the others. However, it was the only one to spend more on investment than it generated in cash. State Street is cheapest on forward earnings. Before leverage flatters any of it, return on assets is what custody banking actually earns.
Market Sentiment:
State Street Corporation was held by 52 hedge funds with a combined stake value of about $2.13 billion at the end of Q2 2026 in the Insider Monkey database. This is level with 52 hedge fund holders with a cumulative investment value of around $1.38 billion in the previous quarter.
The Bank of New York Mellon Corporation was held by 68 hedge funds with a combined stake value of about $2.78 billion at the end of Q2 2026 in the Insider Monkey database. This is up from 55 hedge fund holders with a cumulative investment value of around $2.13 billion in the previous quarter.
Northern Trust Corporation was held by 43 hedge funds with a combined stake value of about $1.35 billion at the end of Q2 2026 in the Insider Monkey database. This is down from 52 hedge fund holders with a cumulative investment value of around $1.00 billion in the previous quarter.
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This article is originally published at Insider Monkey.
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