Short Selling Explained: Making Money When a Stock Falls

Beginner Investing • 6 min

Short selling flips the normal "buy low, sell high" order around: sell high first, buy low later. Here's how: a short seller borrows shares (usually through their broker) from someone who owns them, immediately sells those borrowed shares on the open market, and waits. If the stock falls, they buy the same number of shares back at the lower price, return the borrowed shares to the lender, and pocket the difference.

It's a legitimate, common strategy hedge funds and other investors use to bet against companies they believe are overvalued or in trouble — and it plays a real role in markets by helping prices reflect negative information, not just positive hype.

Insider Angle: the risk profile is completely different from just buying a stock. If you buy a stock, the most you can lose is 100% of what you put in — the stock can't go below zero. But if you short a stock, there's no ceiling on how high the price can go, which means there's no ceiling on your potential loss. That asymmetry is exactly why short squeezes can be so violent and why short selling is considered one of the riskier strategies in investing.

Try This: Check a stock's short interest data from a public market data source (short % of float, days to cover) — a very high days-to-cover number means a lot of short sellers would need to buy back shares if the price started rising, which is exactly the setup for a potential squeeze.

Try This — Live Data

Current short % of float and days-to-cover for a few well-known heavily-shorted names.

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