Short selling is one of the most controversial and misunderstood strategies in finance. It allows you to profit from a stock's decline — but the risks can be catastrophic.
How Short Selling Works
- You borrow 100 shares from your broker (shares you don't own)
- You immediately sell those borrowed shares at the current price ($50 = $5,000 received)
- You wait for the stock to fall
- You buy back 100 shares at a lower price ($30 = $3,000 spent)
- You return the shares to the broker
- Your profit = $5,000 - $3,000 = $2,000 (minus borrowing fees)
The Infinite Loss Problem
When you buy a stock normally, the maximum you can lose is 100% (the stock goes to $0). But when you short:
There is no ceiling on a stock price. If you short at $50 and the stock goes to $500, you've lost 10x your investment. In theory, losses are unlimited.
Famous Short Squeezes
| Event | Stock | Short % of Float | Result |
|---|---|---|---|
| GameStop (2021) | GME | 140% | +1,600% in weeks |
| Volkswagen (2008) | VOW | 13% | +400% in 2 days |
| Tesla (2020) | TSLA | 20% | +740% in 12 months |
When Short Selling Makes Sense
- You've identified clear fundamental fraud (like Hindenburg Research does)
- As a hedge against a long position in the same sector
- Professional traders with strict stop-loss discipline
When It Doesn't
- You're a retail investor without experience
- The stock has high short interest (squeeze risk)
- You can't afford the margin requirements
- You're acting on emotion ("this stock MUST go down")
How Aristockrat Uses Short Data
While we don't encourage short selling, our algorithm monitors short interest as a sentiment indicator. A rapidly increasing short interest can signal institutional concern, while a rapidly decreasing one suggests improving fundamentals.