Interest-rate hikes have a reputation on Wall Street.

When the Federal Reserve raises borrowing costs, investors often expect stocks to suffer.

Higher rates make bonds more attractive, increase corporate financing costs and reduce the present value of future earnings. For companies trading at expensive valuations, particularly growth stocks, that can create immediate pressure.

But history is considerably more complicated.

The U.S. stock market has often struggled during the early stages of a Federal Reserve tightening cycle, yet stocks have also recovered — and in some periods produced positive returns over the following year.

That strange pattern is becoming especially relevant as the Federal Reserve prepares for what would be its first rate increase since 2023.

Markets have placed roughly 90% or better odds on a 25-basis-point increase, which would lift the federal funds target range to 3.75%-4.00%.

Investors are therefore facing an old question with a new twist:

If the Fed raises rates, does that automatically mean stocks are headed lower?

History says the answer is more complicated.

Historical analysis from LPL Financial cited in recent market coverage found that the S&P 500 experienced negative average returns during the first four months following the start of a rate-hiking cycle across six cycles since 1994.

Goldman Sachs data cited by Business Insider similarly showed that stocks typically weakened in the two to three months following the first rate increase, with average and median declines around 4%.

That makes intuitive sense.

A rate hike changes the financial environment almost immediately.

Credit becomes more expensive.

Investors reassess valuations.

Businesses may become more cautious about investment.

Consumers may delay large purchases.

And the discount rate applied to future corporate earnings rises.

For the stock market, that can be enough to trigger a repricing.

But that is only the first part of the story.

Over longer periods, stocks have often performed better after the initial adjustment.

LPL's historical analysis found that average S&P 500 returns improved over time following the beginning of rate-hiking cycles, with the median one-year return around 11%. The average was close to 7%, although individual cycles varied significantly.

Why?

Because the reason behind the rate hike matters.

A central bank may raise rates because the economy is growing strongly and inflation needs to be contained.

That is very different from hiking rates because an economy is overheating dangerously while recession risks are rising.

In the first scenario, higher rates can coexist with strong corporate earnings.

In the second, earnings can deteriorate at the same time borrowing costs rise.

Stocks generally have a harder time when both forces move against them.

The Federal Reserve is preparing to raise rates as inflation remains above the central bank's 2% target.

Core CPI increased 0.3% in August, while oil prices have climbed sharply because of geopolitical disruptions. Treasury yields have also risen, with the 10-year recently breaking above 5%.

That creates an unusual combination.

The Fed is not hiking because the economy is overheating in a textbook sense.

It is responding to persistent inflation risks at a time when long-term borrowing costs are already elevated.

That makes the market's interpretation of the move particularly important.

One of the most interesting possibilities is that investors may have already priced the expected rate increase.

Futures markets have assigned very high probability to a quarter-point hike, and Wall Street has spent days preparing for it.

That creates a classic market dilemma.

If everyone expects bad news and the bad news arrives exactly as expected, there may be little reason for stocks to fall further.

In some situations, an anticipated negative event can even produce a relief rally because uncertainty disappears.

But that only works when the future message is also reassuring.

If the Fed raises rates and then signals several more increases, markets may still react negatively.

The headline rate is therefore only one piece of the puzzle.

Stocks do not respond only to the Fed's policy rate.

They respond to Treasury yields.

If the 10-year Treasury yield remains around 5%, investors will have to decide whether stock valuations offer enough additional compensation for the risk involved.

This is especially important for companies whose future earnings are expected many years from now.

A higher discount rate reduces the present value of those future profits.

That means some growth stocks can fall even when their businesses continue performing well.

The effect is mathematical rather than emotional.

But sentiment can make it much larger.

The six tightening cycles analyzed by LPL demonstrate broad tendencies, not a guaranteed formula.

The market behaved differently in different economic conditions.

The latest major tightening cycle that began after the pandemic ultimately produced a significant decline in equities over the following year as inflation, recession concerns and the consequences of rapid rate increases collided.

That episode is important because it shows the danger of treating historical averages as predictions.

Stocks can rise after rate hikes.

They can also fall substantially.

The economic environment decides which story dominates.

One reason stocks sometimes perform well during tightening cycles is that corporate earnings can keep growing.

Suppose a company is generating strong revenue growth, expanding margins and maintaining pricing power.

Higher interest rates are a headwind.

But if earnings growth is strong enough, investors can still justify owning the stock.

This is one reason market analysts often distinguish between valuation risk and earnings risk.

Higher rates attack valuation.

A recession attacks earnings.

The combination is much more dangerous than either alone.

Technology is particularly sensitive because many companies in the sector trade at valuations built around long-term growth.

The AI boom has made that sensitivity even more important.

Data-center operators, chipmakers and software companies are investing massive amounts of capital based on expectations of future demand.

Higher interest rates raise the cost of that capital.

The question becomes whether expected AI revenues will grow fast enough to compensate.

This explains why the recent rise in Treasury yields has coincided with increased volatility in AI-related stocks.

Not every sector reacts the same way to higher rates.

Banks can potentially benefit from higher interest rates if lending margins improve, though the relationship depends on the broader yield curve and credit conditions.

Energy companies can benefit from high commodity prices, particularly when oil rises sharply.

Recent historical analyses cited by Business Insider show that energy and technology sectors have sometimes performed relatively well in the first months following a rate increase, although sector performance varies by cycle.

Again, the lesson is not that one sector always wins.

It is that a rate hike changes the investment landscape rather than producing a uniform response.

Higher U.S. rates can support the dollar.

That can create both winners and losers among publicly traded companies.

Exporters can face a less favorable currency environment.

Companies earning substantial revenue overseas may see foreign earnings translated into fewer dollars.

Emerging markets can face pressure as global capital shifts toward dollar assets.

At the same time, U.S. financial assets may become more attractive to international investors.

The historical evidence suggests that the most useful question is not:

“Did the Fed raise rates?”

The more useful questions are:

Why did the Fed raise them?

How high will rates go?

How quickly will inflation fall?

What happens to corporate earnings?

And does the economy remain strong enough to absorb higher borrowing costs?

Those factors determine whether a rate hike becomes a temporary valuation shock or the beginning of a broader market downturn.

That is the historical pattern that often gets lost.

Central-bank tightening can be painful.

Stocks can fall.

Volatility can rise.

But a rate increase does not automatically mean a prolonged bear market.

Historically, some rate cycles have been followed by renewed stock-market gains once investors adjusted to the new level of borrowing costs and economic growth remained intact.

This is why Wednesday's Fed decision deserves context.

The initial market reaction may be dramatic.

But the more meaningful signal could emerge over the next several months as investors discover whether inflation is actually coming under control and whether corporate earnings can withstand a higher cost of capital.

For Wall Street, a rate hike is therefore not the end of the story.

It is the beginning of a new test.

The market first has to absorb the higher cost of money.

Then it has to decide whether the economy is strong enough to live with it.

And history shows that the second question can matter much more than the first.