The federal funds rate is the interest rate US banks charge each other for overnight reserves. The Federal Open Market Committee (FOMC) sets a target range for that rate — for example 4.25%–4.50% — and the New York Fed’s open-market desk uses tools such as the interest on reserve balances and overnight reverse repo facility to keep the effective funds rate inside that corridor. For UK beginners watching FOMC decision days, the funds rate is the policy dial headlines mean when they say “the Fed hiked”, “held”, or “cut”.
This sits beside how FedWatch probabilities work for traders and what is the FOMC Summary of Economic Projections.
Target range versus effective rate
The Committee votes on a range. Markets also watch the effective federal funds rate — the volume-weighted average of overnight trades — which usually sits inside the range. A decision that lifts or lowers the range by 25 basis points is the classic “one step” move. Larger steps happen, but beginners should treat 25bp as the default unit until the statement or press conference signals something different.
Samuel & Co Trading’s assessment is that beginners should write the pre-meeting target range, the expected change, and the expected post-meeting range in one line before the print — then mark whether the desk actually delivered that step.
Why the funds rate matters for UK books
US front-end yields, the dollar, and global risk appetite often reprice when the funds-rate path changes. Sterling can move even when UK data are quiet, because interest rate differentials and dollar liquidity still matter for cable. Equity index futures and semiconductor names also feel the discount-rate channel when the path of the funds rate shifts.
What the funds rate does not tell you alone
A hold at the current range can still be hawkish or dovish depending on the statement and the chair’s tone — see hawkish hold literacy. The funds rate today is not the same as the longer-run “neutral” concept in r-star. Futures can already price several meetings ahead; the decision is one print inside a path.
How beginners should read decision day
On FOMC afternoons (UK evening), note: (1) did the range change, (2) did the statement language on inflation, employment, or risks change, (3) did the chair lean hawkish or dovish in the press conference. Related: how to map FOMC statement edits and how to read a Fed chair press conference.
Common mix-ups
Do not confuse the funds rate with the Bank Rate set by the Bank of England. Do not treat one decision as the whole path. Do not ignore that markets price expectations before the print — a “correct” decision can still move markets if guidance differs from what was priced.
Putting it next to the tape
Keep a simple three-column note: prior range, new range, and whether two-year US yields rose or fell in the first half hour. That habit teaches the difference between the dial and the path faster than replaying the first headline.
If you want a structured check on how you process event-week risk, a free traders assessment can highlight sizing and timing habits without turning this explainer into personal advice.
Beginner checklist
Write the release or theme in one line, the second-order channel in a second line, and what would invalidate your reading in a third. Keep energy, wages and policy path in separate mental buckets when more than one shock is live. Prefer official calendars and Tier-1 wires over social summaries when you verify a number. Review the session after London close so you learn from the tape rather than from the first headline alone.
Conclusion
The federal funds rate target range is the Fed’s overnight policy dial. UK beginners gain more by pairing the range decision with statement tone and path pricing than by treating the headline hike, hold, or cut as the whole story. Educational framing only, not a forecast or trade recommendation.
