Client cash moving to T-bills is a custody contract fight

01Clients shortened duration without cutting risk#

Start with where the bond money went.

Then look at what left. The MBS ETF lost $1.9 billion and the 20+ year Treasury ETF $497 million. Money came out of the back of the curve and went to the front. That is a duration call. Nobody fired a manager over it.

Do not mistake it for fear. The Russell 1000 Growth ETF took $3.4 billion and the Russell 2000 ETF $2.4 billion in the same four weeks. They wanted equity risk and short-dated yield at the same time, and the second half of that wish is the custodian's problem.

Only one kind of trade in that table costs the custodian anything. A client rotating out of the core S&P 500 ETF and into the growth ETF generates a ticket and leaves the custodian's balance sheet where it was. A client who moves from a sweep into a three-month Treasury ETF changes what the custodian earns on that dollar for as long as the position is held.

The fee debate keeps missing this. One move is a product choice inside an asset class. The other is a transfer of revenue from the firm holding the account to the fund inside it, and the account never moves.

Nobody had to fire anybody. The money stayed; only the wrapper changed. That should interest an RIA principal as much as a custodian, because the client behavior that is cheapest to change is the behavior that never leaves the building. It does not show up as attrition. It shows up as a thinner sweep.

The three largest bond-fund inflows in the table are a muni fund, a three-month Treasury fund and an investment-grade credit fund. Printed in dollars, that is what a cash and duration decision looks like.

02Custodians are guarding the balance sheet, and their deals say so#

Watch what the custodians do with their own balance sheets.

Savvy is building for firms with a specific grievance. "They're already at some scale, they're running their operation, but they do have a lot of complaints about their custodian," said Ritik Malhotra, Savvy's CEO. Complaints are cheap. A custodian that wants to keep those firms will eventually have to answer them with price.

Schwab is doing its arithmetic in public. Jon Beatty, who heads its custody unit, says the firm already serves 11,000 RIAs with less than $100 million in assets and is ready to take at least some Fidelity accounts. The coverage records no terms in writing.

Our read is that the small end is where this fight gets sharpest. At a sub-$100 million firm there is less of the rest to make up for it. A custodian counting 11,000 such firms is counting the places where sweep economics are least diluted. That is a judgment. The terms Schwab eventually writes will test it.

The backdrop pushes the same way. Kitces reported that Vanguard is planning to acquire Altruist, and read the combination as one that could pressure Schwab and Fidelity to raise service levels and help certain ETF providers sell to RIAs without paying the fees the major incumbent custodians charge.

Technology will not settle this first. RIABiz asked analysts how far behind Schwab is on the agentic AI Altruist has built, and a small handful said maybe five years. No principal signing a custody renewal this year should wait for that gap to close.

So the argument comes back to price. If a Vanguard-owned Altruist lets fund providers reach RIA clients while sidestepping the incumbent custodians' fees, the cheapest place for a client's cash stops being inside the custodian. A custodian defending that line has two levers. One is the fund menu, where every competitor can see the price. The other is the sweep, where almost nobody can.

03The fee war on the menu is real, and it points at the sweep#

The strongest case against this argument accepts the flows and denies they matter. Its first leg is simple. The repricing clients actually get is in platform and product fees, where prices are published and falling.

The evidence for that is solid. Altruist priced donor-advised funds at 50 basis points with no account minimums, against the 60 to 65 basis points most other sponsors charge, and made the accounts investable in any model on its marketplace. Vanguard launched Custom Model Portfolios that let advisers tailor its models while keeping its cost structure. A single October week brought a Schwab international bond ETF and an Allspring high-yield muni fund, among others. That is a price war, fought in the open.

The second leg is inertia, and on the data it lands. Nothing in the flow records says how much of the $6.2 billion came out of a sweep account rather than a certificate of deposit, a money-market fund, a maturing bond or a client's checking account. The coverage of Fidelity's small-account move does not state the deadline or a sweep yield. This argument would be much stronger with those two facts. We do not have them.

We think the identity of the price-setters matters more than the missing source data. The firms cutting charitable-account fees to win a household are custodians, and a custodian that will reprice a donor-advised fund at 50 basis points has told you it prices the household. The sweep on that household's cash is the line most exposed, now that clients have shown they will move cash for yield.

Inertia is a theory about clients who do nothing. These clients did something, and in size. Whether a given dollar came from a sweep or a certificate of deposit, the client has now named a price at which his cash moves. That price is published every day.

So narrow the claim and keep it. Not every sweep dollar is leaving. Custody contracts will not be rewritten by Christmas. The marginal dollar of client cash now has a visible, published alternative, and a custodian courting 11,000 small RIAs cannot defend an unpublished sweep yield against a published one forever. The menu war is real. It is also why the sweep comes next.

04Price the sweep against a Treasury ETF before the next signature#

For the principal signing a renewal in the next two quarters, the work is specific and dull. Ask for the sweep yield in writing, beside the fee schedule. Put both next to what the same client's cash would have earned over the same 30 days in the three-month Treasury ETF, the muni ETF or the corporate ETF. Expense ratios sit on a public webpage. The sweep yield has to be requested.

Then treat the gap as a contract term. Settled after the signature, one client at a time, cash placement is something the custodian prices and the adviser absorbs at every review. Settled before, it covers every account converted during the contract. Get it agreed before you move balances. Once the balances move, the leverage moves with them.

Watch for documents. Quotes will not settle this. Fidelity's written terms for the accounts it is pushing out come first; the coverage gives no deadline, so the paper itself is the news. Schwab has to turn its 11,000 small RIAs into a fee schedule, because a custody head's quote is not a term and a schedule is. How much Fidelity, the custodian behind Savvy, is willing to put on display depends on whether Savvy's platform, due in mid-2027, launches with a disclosed sweep.

Write the falsifier down now. If balances drift back into sweeps while sweep terms stay unchanged, October's flow table was a trade, and this argument is wrong. If a custodian answers Altruist's 50-basis-point donor-advised fund with published cash pricing, the direction is confirmed.

Until then the asymmetry favors the adviser. A client who has watched $5 billion of other people's money go into three-month bills will ask where his own cash sits. The adviser with the sweep yield in a drawer has an answer. The custodian who has never been asked has no reason to publish one.

Make the request this quarter, before the renewal paperwork arrives. The first hard evidence lands when Fidelity puts terms for its small accounts on paper. The dated test is Savvy's mid-2027 launch: if it ships without a disclosed sweep, the custodians will have kept this fight out of view a while longer, and the principals who asked early will be the only ones holding a number.