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The GameStop short squeeze: from $20 to $483 in a month

In January 2021, shares of a struggling video-game store rose from under $20 to an intraday high of $483. Then, in a matter of days, most of that rise was gone.

Story · 7-minute read · Updated 2026-10-21

The world before the squeeze

GameStop sold video games in shopping malls. By 2020, more people were downloading games instead of buying discs. Many investors expected the company to keep shrinking.

Some hedge funds were betting its shares would fall. They did this with short selling: borrowing shares, selling them, and hoping to buy them back cheaper later.

So many people were short that, according to a later SEC staff report, the short interest in GameStop in January 2021 was more than 100% of its available shares. It was the only stock the SEC staff saw at that level.

Here's why that matters. A short seller has to buy the shares back sooner or later. If the price rises instead of falls, the losses have no ceiling. And when many shorts rush to buy at once, their buying can push the price even higher. That's a short squeeze.

What happened

On Reddit's r/wallstreetbets forum, a group of small investors had been talking about GameStop for months. Some argued the company was worth more than the market thought. Others saw the huge short interest and asked: what if everyone bought at once?

In mid-January, news that a well-known investor was joining GameStop's board lifted the stock. Then the buying snowballed.

• Late 2020: GameStop shares traded under $20.
• 22 January 2021: they closed above $60.
• 26 January: Elon Musk tweeted "Gamestonk!!" and a link to the forum.
• 27 January: they closed at $347.51.

Many buyers used call options, cheap bets on a price rising. When those options got bought in huge numbers, the dealers who sold them often had to buy the stock to protect themselves, adding more fuel.

The hedge fund Melvin Capital, a prominent short seller of GameStop, took a $2.75 billion cash injection from two other firms in late January. It closed down in 2022.

The moment everyone remembers

On the morning of Thursday 28 January 2021, GameStop touched $483 in early trading.

Then several brokers, including Robinhood, stopped customers from buying more GameStop shares. They could still sell.

Robinhood said the reason was money it owed to its clearing house. Trades took two days to settle, and the clearing house demanded billions in extra cash as a safety deposit because the stocks were so jumpy. Many users believed something else was going on. Anger spread fast.

With new buying blocked at major brokers, the price fell sharply. It closed that day under $200.

Within a week, it was below $100. By mid-February, it was trading around $40.

Congress held a hearing in February 2021. In October 2021, the SEC staff report found that the rise was driven mostly by buyers, not by short sellers covering. It said the brokers' limits came as clearing houses demanded large extra deposits.

What changed afterwards

The US moved from two-day to one-day settlement for stock trades in May 2024. Shorter settlement means less money at risk while trades are being finalised, which was a key reason brokers gave for limiting buying in 2021.

What it teaches

1. Late buyers carry the most risk

Some early buyers held shares from under $20. Buyers near $300 or $400 had a very different trade. The chart was the same company. The risk depended on where you got in.

Chasing a move because everyone is talking about it has a name: FOMO. Read FOMO trading for a 3-step pause.

2. Volatility needs a smaller size

GameStop moved 50% or more in some single days. With a stop set from the chart, that means a very wide stop, and so a very small size to keep the same risk. That's volatility in plain numbers. Let the position size calculator do the math.

3. Shorting has no ceiling on losses

A share you buy can fall to zero, but no lower. A share you short can, in theory, rise without limit. That's why short sellers need firm stops and small sizes too. See short selling.

4. Your broker can change the rules mid-trade

Buying limits, higher margin, wider spreads: in extreme markets, brokers can act fast. Plan your exit for a world where you might not be able to do exactly what you want, exactly when you want.

What it doesn't mean

• It doesn't mean small investors "beat Wall Street". Some came out ahead, some lost heavily, and many hedge funds were not hurt at all. The SEC staff report found Melvin was a notable exception.
• It doesn't mean the next meme stock will do the same. Many later attempts fizzled.
• It doesn't mean short sellers are villains, or heroes. Short selling is legal and common. It can also help find overpriced companies.
• The prices here are before GameStop's 4-for-1 share split in July 2022. Charts today show them divided by four.

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