Whale Rock Capital Management is not shy about risk. It runs roughly $19 billion and is known for making a small number of large bets on technology stocks, which is why its returns tend to swing hard in both directions.
That approach can produce spectacular wins. It can also produce painful losses, and July was definitely the painful kind.
The fund had been having a great year before that.
The results are private, so the numbers come from a source with direct knowledge who asked not to be named.
The problem started with a big question about all the money flowing into AI. Companies are spending huge sums on AI infrastructure, and in July investors started wondering whether that spending will pay off.
The worry is not whether AI is real. It is whether companies can earn enough from it to justify those costs.
That worry hit AI and chip stocks hard. Stock-picking funds, which buy and sell specific companies rather than broad indexes, were especially hurt.
Whale Rock's trouble did not happen in a vacuum. The whole sector was under pressure.
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The selloff deepened after one fund in particular had a very bad month.
Margin requirements are the extra cash a fund must put up when borrowed bets drop in value. When a fund cannot meet that demand, it has to sell holdings quickly, and quick selling can make prices fall faster.
Whale Rock was not alone.
Coatue Management's hedge fund had its worst performance in more than a year. Even multistrategy funds, which put traders to work across many markets to spread risk, lost ground.
So July was not just a Whale Rock problem. It was broad enough to reach some of the biggest names in the business.
Spokespeople for the companies declined to comment.
Hedge fund returns are private, so you probably won't see them on your account statement. The stocks behind those returns are public, and they are likely in your portfolio.
Professional investors often borrow money to make bigger bets, which makes their losses worse. Most individual investors do not, but they still hold the same underlying stocks.
The dollar amounts at these funds are bigger than most people can imagine. The market does not care who is holding the stock.
What does that have to do with your money? These losses are a sign that even professional investors are not sure the AI spending spree will pay off.
Companies are still spending big on AI infrastructure. But July proved that the stocks tied to that spending can turn around quickly.
The same uncertainty that dragged prices down in July is still here. It could keep producing sharp moves in both directions.
For now, the AI story is still being written. The market is trying to figure out which companies will earn real profits from all that spending.
If those stocks are part of your portfolio, it could be a bumpy ride while that question gets answered.
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