What do you mean by stepping empty?

Interpretation of stepping into the air;

1. Also called "empty". Walking in the air. Step 2 walk away. 3. The soles of your feet are gone. 4. Empty and impractical.

There is also a stock market terms:

When the stock goes up, if you don't buy or profit from short positions, it's called stepping on the air.

Empty: The price of coins rose, but the investors who originally sold coins did not buy them in time for some reason. This phenomenon is called stepping on the air.