For most of my working life I treated a Federal Reserve announcement as somebody else’s news. Something for the men in the studio with the charts behind them.

I was wrong, and wrong in a specific way. The decision does not miss a household like mine. It arrives in five pieces, at five different speeds.

A home equity line moves first. It is written against the prime rate, and prime follows the Fed within days. The line adjusts on its next scheduled date. One billing cycle, sometimes two.

A credit card is the same machinery on the same clock. Prime plus a margin, repriced inside a cycle or two.

Now the third clock, which runs on a different principle entirely.

3.7%

Where the federal funds rate stood by the end of the last tightening cycle

 

1.4%

What interest-bearing deposits were paying at the same moment

The New York Fed calls this the deposit beta, meaning the share of a policy move that reaches a saver. It lags hardest on the way up. Cuts, by contrast, tend to arrive in your account promptly.

One point four percent. Hold that one. It is the clearest number I have for how a decision reaches somebody who saved.

The fourth clock barely runs. A fixed mortgage does not follow the Fed, whatever the evening news implies. Dallas Fed research this May put its sensitivity to the funds rate below 20 percent. To the ten-year Treasury, 85 percent.

And the fifth does not run at all. Your annual cost-of-living adjustment is set by a price index, by statute. Nothing decided this afternoon touches it.

I am writing this before two o’clock and I have no idea what they will do. The market has leaned one way for a fortnight. A lean is pricing rather than fact, and the other branch stays open until the statement lands.

Which does not matter for the point of this letter. The five clocks keep their order in either direction.

Five timetables, read down the list.

One institution sits on both the fast clock and the slow one, and it sets both.

The honest limit is the part you can act on. The slow clock is only slow if you stay put. Money market funds and online accounts pass a policy move through far faster. A saver who moves gets paid closer to the headline.

Competition for deposits is real. It just never arrives as a letter.

The arithmetic

The federal funds rate averaging 3.7% while interest-bearing deposit rates reached 1.4% is from the New York Fed’s Liberty Street Economics analysis of deposit betas, and refers to the fourth quarter of 2022. The finding that deposit rates lag most in a rising-rate environment is from the same work. The mortgage rate’s partial sensitivity of under 20 percent to the federal funds rate, against 85 percent to the ten-year, is from Dallas Fed research published 7 May 2026. Home equity lines and most variable-rate cards are priced off the prime rate, which moves with the federal funds target within days; the borrower’s rate adjusts on the next scheduled date, commonly one to two billing cycles. Cost-of-living adjustments to Social Security are set by statute from a consumer price index. The Committee announces at 2:00 PM Eastern today, and this letter was written and sent beforehand, taking no view on the outcome. The read on who profits is our own. This is not financial advice.

 

Do not watch the announcement. Watch your own statements over the next ninety days and write down the date each rate changed. Two of them will move before Halloween, and one will not move at all until you make it. That list, in your own handwriting, beats any commentary you hear at two o’clock.

Andrew

Boomers Trade is written by someone getting older right alongside you, and watching who profits from it.