The Federal Reserve, often just the Fed, is the central bank of the United States. It sets monetary policy to support maximum employment and stable prices, helps keep the financial system safe and runs parts of the US payments infrastructure.
Traders watch the Fed because its interest rate decisions and balance sheet actions influence borrowing costs, the dollar, bond yields and appetite for risk across stocks, credit and crypto.
Who runs the Federal Reserve and what it is for
The Fed has a public board in Washington and 12 regional Reserve Banks spread across the country. Monetary policy is set by the Federal Open Market Committee, known as the FOMC, which brings together the Board of Governors and a rotating group of regional bank presidents. The Chair of the Board leads the process, but decisions are taken collectively.
The main goals are often called the dual mandate. The Fed aims for stable prices and maximum sustainable employment. It also works to promote financial stability and a well‑functioning payments system. The institution is designed to act independently within government, while reporting regularly to elected representatives.
How interest rates are set in practice
The policy rate is not a single fixed number. The FOMC sets a target range for the federal funds rate, the short‑term rate at which banks lend reserves to each other overnight. To keep market rates within that range, the Fed uses a set of tools.
- Interest on reserve balances (IORB): the rate the Fed pays banks on reserves they hold at the Fed. This acts as a floor under money‑market rates, since banks are unlikely to lend reserves for less than they can earn risk‑free at the central bank.
- Overnight reverse repo facility: a tool that lets eligible money‑market participants place cash with the Fed overnight in exchange for securities, which helps set a firm floor for non‑bank lenders.
- Open market operations: short‑term repurchase and reverse‑repurchase operations, plus outright Treasury purchases or sales when needed, to steer liquidity and the level of overnight rates.
- Discount window: a standing facility where banks can borrow directly from the Fed against collateral. Its rate is set above typical market funding costs and is meant as a backstop, not the main policy lever.
Changes in the policy range flow through to other borrowing costs. Banks adjust prime lending rates, bond yields reprice and mortgage rates and corporate loan costs usually move in the same direction. The path of expected future policy matters as much as the latest move, since long‑dated assets are priced off anticipated rates over time.
Balance sheet policy: QE, QT and liquidity tools
Beyond setting short‑term rates, the Fed can change the size and composition of its balance sheet to influence broader financial conditions.
- Quantitative easing (QE): the Fed buys Treasuries and agency mortgage‑backed securities. That adds reserves to the banking system and removes duration risk from private investors, which tends to compress yields and ease financial conditions.
- Quantitative tightening (QT): the Fed allows holdings to mature without reinvesting the proceeds, or in some cases sells assets. That reduces reserves and can lift term premia, often tightening conditions.
- Repo facilities and backstops: standing or temporary programmes that lend against high‑quality collateral help contain money‑market stress and keep policy transmission smooth. The exact design of these tools can vary and can change.
Balance sheet policy works through expectations as well as mechanics. Announcing future purchases or run‑off plans can move yields before any transaction takes place.
Other roles beyond monetary policy
The Fed supervises and regulates many US banks, sets standards on capital and liquidity for those firms and runs periodic stress tests to check resilience to adverse scenarios. It also operates key payment rails such as large‑value real‑time settlement and supports cheque and automated clearing services, working with the private sector.
As lender of last resort, the Fed can provide secured funding to solvent institutions that face temporary liquidity strains. In severe stress, the central bank may create special lending facilities within its legal powers. Requirements, eligible collateral and terms are set by regulation and law, and they vary by facility and can change.
Why Fed decisions move markets
Markets discount the future. When the Fed raises its policy range or signals higher rates for longer, investors update the path of expected short‑term rates. That feeds into the entire yield curve, which is the starting point for valuing everything from mortgages to growth stocks. Higher discount rates reduce the present value of long‑dated cash flows, so long‑duration assets like tech shares are often more sensitive than short‑duration value stocks.
The dollar tends to strengthen when US rates are expected to be higher than those in other economies. Relative policy stances across central banks, such as the Fed versus the ECB, can drive currency pairs. Credit spreads react too, since tighter policy often cools risk appetite and makes refinancing costlier for weaker borrowers.
Crypto and other risk assets can be sensitive to the same channels. Tighter dollar liquidity and higher real yields have, at times, weighed on speculative flows. Easier policy or a slower pace of tightening can do the opposite by supporting liquidity and confidence.
Incoming data that shape Fed decisions also move prices. Inflation measures like CPI, wage growth and labour market reports feed into expectations for the next meeting and the likely policy path.
A quick example: imagine the FOMC surprises with a larger‑than‑expected rate increase and guidance that more may follow. Short‑dated Treasury yields jump first. The move ripples along the curve as investors price a higher peak rate. Bank funding costs rise, mortgage rates tick up and equities sell off, with high‑growth names falling more than defensive sectors. The dollar gains against peers. In crypto, liquidity thins and prices wobble as leveraged positions are trimmed. The reverse sequence can play out if the Fed hints at a slower pace or signals that cuts are on the table.
Where traders watch for Fed signals
Policy comes with communication. After each FOMC meeting, the Fed releases a statement and holds a press conference. Periodically it publishes projections for growth, inflation and the policy rate. The so‑called dot plot shows each participant’s preferred policy rate for coming years, which helps markets gauge the range of views.
Minutes of meetings add colour on the debate and the balance of risks. The Beige Book summarises business conditions around the country, gathered by the regional banks. Speeches and interviews by Fed officials, taken together with market pricing in fed funds futures and Treasury bills, shape day‑to‑day expectations between meetings.
None of these signals are promises. They describe views under current assumptions, which can shift as data arrive or as financial conditions tighten or loosen on their own. For traders and investors, the job is to judge how policy may evolve and what that means for borrowing costs, liquidity and valuations across markets.