Short selling is a way to profit when a stock’s price falls. You borrow shares through your broker, sell them at today’s price, and later buy them back to return them. If the price dropped, you keep the difference. If it rose, you lose, and because a stock can keep rising, your possible loss has no limit.
How short selling works
- You open a margin account and borrow 100 shares of a stock trading at $50.
- You sell them and receive $5,000.
- The price falls to $35. You buy 100 shares for $3,500 and return them.
- Your profit is $1,500, minus fees and interest.
If the stock rises to $80 instead, buying back costs $8,000 and you lose $3,000.
Long vs short
| Buying (long) | Short selling | |
|---|---|---|
| You profit when | The price rises | The price falls |
| Most you can lose | What you invested | Unlimited |
| Most you can gain | Unlimited | 100% (if the stock goes to zero) |
| Ongoing costs | None | Borrow fees, margin interest, dividends owed |
The costs of shorting
- Borrow fees: small for widely held stocks, very high for hard-to-borrow ones.
- Margin interest and collateral requirements.
- Dividends: if the company pays one while you are short, you owe it to the lender.
What is a short squeeze?
When a heavily shorted stock starts rising, short sellers rush to buy shares to limit their losses. That buying pushes the price higher still, forcing more shorts to cover. GameStop in early 2021 is the best-known example.
Margin calls
If the stock rises and your account falls below the broker’s minimum, you get a margin call. You must add cash or the broker can close your position at a loss without asking.
Why do people short stocks?
- Speculation: they believe a company is overvalued or in trouble.
- Hedging: to offset losses on other holdings.
- Market health: short sellers have exposed frauds and help keep prices realistic.
Should beginners short stocks?
Generally not. The odds are against you because markets tend to rise over time, the costs add up and one bad squeeze can wipe out an account. If you are worried about falling prices, holding more cash or diversified index funds is far simpler. See also what a bear market is and how to handle one.
- Live prices and sentiment on every ticker page
- Weekly email with your watchlist movers
- Price alerts on the stocks and coins you follow
Frequently asked questions
Is short selling legal?
Yes, in most markets, with rules. “Naked” shorting, selling shares you have not arranged to borrow, is generally banned.
What does “short interest” mean?
It is the share of a company’s stock that is currently sold short. A high figure shows many investors are betting against it.
Are inverse ETFs the same as shorting?
They aim to rise when an index falls, with losses limited to what you invest, but they are built for short-term use and can drift over time.
This article is general information, not financial or tax advice.
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