Dis-inflation.

Imagine inflation is like a strong wind against a runner (the stock market). The stronger the wind, the harder it is for the runner to move forward. Inflation, especially when it's high, acts like this strong wind against companies and their stocks. It increases costs for businesses and eats into people's purchasing power, making it harder for businesses to grow and thrive.

Now, think of a low inflation report as the wind calming down. The runner, who's been struggling against the strong wind, suddenly finds it easier to move forward. This is what happens with stocks when inflation is low.

A low inflation print can be a sign of a healthy economy - not too hot, not too cold. It creates an environment where businesses can grow more easily, consumers are more willing to spend, borrowing is cheaper, and investor confidence is higher. All these factors can lead to bullish (positive) movement in stock prices.