Why Markets Rally After Rate Hikes Investors Already Saw Coming

The S&P/TSX Composite gained 1.8% on the same day the Federal Reserve raised its policy rate for the first time in three years. The Nasdaq Composite advanced 1.69%. In the weeks before the announcement, economists had published estimates, bond traders had repositioned, and the median forecast on Bloomberg had converged on the exact 25-basis-point move the Fed ultimately delivered. The median forecast matched the delivered move, so the rally followed not from surprise but from the removal of uncertainty.

Investors dislike the uncertainty about how high rates will go, when, and what the path looks like over the next twelve months. A rate hike that matches consensus removes a category of uncertainty. The decision is done. The dot plot is updated. The forward guidance is on the record. Traders can now price the next six to nine months with a clearer baseline instead of holding extra cash to guard against a policy swerve. Relief, in this context, is the release of a hedge.

The certainty premium outweighs the cost of capital

Central banks signal their intentions weeks in advance through speeches, minutes, and carefully worded press releases. By the time the Federal Open Market Committee votes, the market has already moved. Ten-year Treasury yields typically climb in the month before the hike, not after. Equity risk premiums widen. Volatility indices spike. The financial system braces. What the actual announcement does is collapse that brace into a known state.

The VIX, which measures expected volatility in the S&P 500, tends to retreat sharply once the Fed's decision is public. In the six trading sessions following the 2026 hike, the VIX dropped 14%, even though borrowing costs were now definitively higher. The retreat reflects the removal of scenario planning. Portfolio managers no longer need to model both a 25-basis-point hike and a 50-basis-point surprise. They model one reality and adjust position sizes accordingly.

For Canadian equities, the calculus includes an additional factor. The Bank of Canada historically tracks the Fed's policy rate to maintain exchange rate stability and prevent significant depreciation of the Canadian dollar. When the Fed moves first and the move is in line with expectations, Canadian investors gain confidence that the Bank of Canada will follow in a measured, synchronized way. The TSX's heavy weighting in financials, roughly 30% of the index, means higher rates can actually improve net interest margins for the Big Five banks, turning what looks like a headwind for growth stocks into a tailwind for a large segment of the domestic index.

Tightening can signal strength, not weakness

A rate hike is a statement about the economy's capacity to function without emergency support. The Federal Reserve raises rates when the labour market is resilient, when corporate earnings are holding, and when inflation remains above the Fed's 2% target, the central bank's anchor. The U.S. Bureau of Labor Statistics reported an unemployment rate of 4.3% in the quarter preceding the hike. Statistics Canada's labour force data showed similar resilience. The hike itself becomes evidence that the economy can stand on its own.

Technology and growth-oriented stocks, which are the most sensitive to rising discount rates, participated in the relief rally. That participation suggests investors were pricing in something worse, a sharper hike, a more hawkish tone, or a signal that the Fed had lost control of inflation and would need to act more aggressively later. When none of those scenarios materialized, the repricing was upward.

The rally will not last indefinitely. Higher rates take twelve to eighteen months to filter through consumer spending, corporate borrowing, and real estate. But in the short term, the market prefers a clear plan it dislikes to an ambiguous one it fears.