Fed Funds Rate
The interest rate at which banks lend reserve balances overnight. The Federal Reserve's key tool for controlling monetary policy and the entire interest…
The Fed Funds Rate is the interest rate at which commercial banks lend reserve balances to each other overnight. The Federal Reserve sets a target range for this rate and uses it as its primary tool to control monetary policy, inflation, and economic growth.
Formula
Fed Funds Effective Rate = Weighted Average of Overnight Lending Rates Between Banks
The Fed doesn't directly control the rate but sets a target range (e.g., 5.25-5.50%) and uses open-market operations to keep actual rates within that range.
Example
In September 2022, the Fed raised its target rate from 0.75-1.0% to 4.25-4.50%. By 2023-2024, rates stayed elevated to combat inflation. If rates are cut in 2026, they might move to 4.0-4.25%, then lower. The Fed Funds rate directly influences mortgage rates, savings account yields, and credit card rates.
How to Interpret It
- Rate hikes (Fed tightening): Higher rates cool inflation and slow economic growth. Stock markets typically dislike rate hikes.
- Rate cuts (Fed easing): Lower rates stimulate borrowing and investment. Markets often rally on rate cut announcements.
- Impact on stocks: Higher rates raise discount rates in stock valuation models, reducing stock prices. Lower rates support stock prices.
- Impact on bonds: Rising rates hurt existing bond holders (bond prices fall). Falling rates help bond holders.
- Economic cycle: The Fed raises rates in strong economies (to prevent overheating) and cuts rates during slowdowns (to stimulate growth).
Limitations
- The Fed's control is imperfect; it sets the target but can't force banks to lend at exact rates.
- Long-term interest rates (Treasury yields) don't always follow Fed Funds rate changes; markets price in expectations.
- Rate changes take 12-18 months to fully impact the economy; Fed actions are forward-looking.
- Political pressure affects Fed decisions; a president unhappy with rate hikes might criticize the Fed (though the Fed is technically independent).
Related Terms
- Treasury Yield — long-term interest rates influenced by Fed policy
- Interest Rates — broader category
- Monetary Policy — Fed's tools to control money supply and rates
- Inflation — the target the Fed is trying to control via rate changes