Macroeconomics

How Does the Fed Work and Why Does It Affect Stocks, the Dollar and Crypto?

A clear guide to the Fed, FOMC, interest rates and central-bank communication, and why markets may react differently than the decision alone suggests.

Published
2026-07-14
Updated
2026-07-14
Reading time
10 min
Author
Raport Rynku

Quick answer

The Federal Reserve is the central bank of the United States. For investors, the important point is not only that it sets interest-rate policy, but that its decisions and communication shape the cost of money, Treasury yields, the dollar, company valuations and the market's willingness to take risk.

What is the Fed?

The Fed is not one person and not one single bank. The system includes the Board of Governors in Washington, regional Federal Reserve Banks and the Federal Open Market Committee, usually called the FOMC. The FOMC is the body investors watch most closely because it decides the main direction of monetary policy.

The official mandate is maximum employment, stable prices and moderate long-term interest rates. In practice, investors monitor inflation, the labour market and economic growth because these data points influence whether policy should remain restrictive or become easier.

What does the Fed actually set?

When people say that the Fed raises or cuts rates, they usually mean that the FOMC changes the target range for the federal funds rate. This is a very short-term interbank rate, but it influences many other parts of the financial system.

The transmission is indirect. It affects borrowing costs, deposit rates, Treasury yields, company financing, the valuation of future cash flows and the relative appeal of the US dollar. The Fed does not directly move Nasdaq or Bitcoin; it changes the environment in which capital becomes more or less expensive.

Why can higher rates pressure growth stocks?

The value of a company depends partly on expected future cash flows. When rates and yields rise, those future cash flows are discounted at a higher rate. Their present value can fall, especially for companies whose profits are expected far in the future.

That is why technology and other growth assets can react strongly to fast moves in yields. It is not a mechanical rule, however. If yields rise because the economy is very strong, better earnings can offset part of the valuation pressure. The key question is always: why are yields rising?

Why does the Fed affect the dollar?

Currencies compare two economies and two monetary policies. If investors expect US rates to stay higher than rates elsewhere, dollar assets may look more attractive. That can support the dollar.

Still, the level of rates is not enough. What matters is the change relative to expectations. The dollar can weaken after a rate hike if the market decides that the Fed is close to the end of the cycle. It can strengthen even when rates are unchanged if the message suggests tighter conditions for longer.

Why do crypto assets react to the Fed?

Bitcoin and Ethereum do not have the same valuation model as equities, but they trade inside the global liquidity system. When money is cheaper, yields fall and the dollar weakens, investors are often more willing to hold volatile assets. That can support crypto.

When the dollar strengthens quickly and real yields rise, conditions can become more difficult. That does not mean BTC must fall. It means the macro backdrop may be less supportive and the move needs confirmation from liquidity, indices and the dollar.

Why can markets rise after a rate hike?

Markets price the future. If a 25-basis-point hike was fully expected, the announcement itself may not be new information. The statement, projections and press conference can matter more than the headline decision.

For example, a hike that is exactly in line with expectations can be read as supportive if the Fed suggests that further hikes are unlikely. The market reaction is therefore a comparison between the decision, the communication and what investors had already priced in.

What do hawkish and dovish mean?

A hawkish Fed is more focused on fighting inflation and keeping policy restrictive. A dovish Fed is more open to easier policy, lower rates or support for growth. These labels are shortcuts, not full analysis.

The same decision can be interpreted differently depending on context. A pause can be hawkish if the Fed stresses that rates may stay high. A cut can be less dovish if it comes with warnings about financial stress.

How to read a Fed decision day

Start with the market expectation before the decision. Then compare the actual decision, the statement, the dot plot if available, and the press conference. Finally, check the reaction in yields, the dollar, equities, gold and crypto.

The first market move is not always the final one. Fed days often produce a first reaction, then a second reaction after the press conference and a more stable reading only after liquidity normalises.

Common mistakes

"A rate cut always means stocks should rise"

A cut can support risk assets, but it can also signal that the economy is weakening. The reason for the cut matters.

"No rate change means nothing happened"

The message can change even when the rate does not. Guidance, projections and tone may shift the whole scenario.

"One sentence sets the trend for months"

Fed communication is important, but it must be checked against data and market confirmation.

"The first candle after the decision is the true direction"

The first reaction can be emotional and liquidity-driven. Confirmation matters more than speed.

Investor checklist

  • What did the market expect before the decision?
  • Was the decision itself a surprise?
  • Did the statement change the forward path?
  • How did yields react?
  • Did the dollar confirm or contradict the move?
  • Did equities and crypto react in the same direction?

How to use this in the Market Report

In Raport Rynku, the Fed is a filter for the scenario, not a stand-alone trading signal. A market move is stronger when the Fed message, yields, the dollar and indices point in the same direction. When they disagree, observation is often better than forcing a decision.

Sources and further reading

Educational material. This is not investment advice or a forecast for any specific instrument.