What does falling knife mean?

Would you try to catch a knife as it falls? That image is where the expression comes from, and it’s used across markets, not just in crypto. The price is tumbling and someone buys, believing it can’t fall much further. The problem is that the drop may still have a long way to go.

Picture a hypothetical token that falls from €10 to €6. Someone sees it as cheap because it has already lost 40% of its price. But if it slides to €3, their purchase has lost 50% of its value. The big drop that came before doesn’t, by itself, limit the next one.

Why it matters

In crypto, a sharp drop can be linked to widespread panic, a security issue, problems with the project or forced liquidations of leveraged positions, meaning exposure larger than the capital the investor has committed. Different causes can produce a similar picture on the chart.

The expression often appears alongside “buy the dip,” meaning buying after a price pullback. The difference lies in the picture they paint: a falling knife emphasizes a sharp drop and the risk that it continues, not an ordinary fluctuation. There’s no specific percentage that turns a drop into a falling knife.

What to watch out for

A small bounce doesn’t prove the drop is over. More selling and lower prices may follow. Likewise, calling something a falling knife doesn’t prove a crypto will keep falling or that the project has failed.

We find the term useful as a description of risk, not as a buy or sell signal. A previous high price isn’t a measure of today’s value, nor a promise of a return to that level.

So when you read “don’t catch a falling knife,” recognize the warning behind the slang: anyone trying to hit the exact bottom is doing so without knowing where it is.