Jane Street's Strategy Stake Grew 54%. The 13.9 Million Puts Matter More.
Jane Street added 1.44 million MSTR shares in Q3, a 53.8% jump to 4.1 million shares. But the same 13F shows put options on nearly 14 million shares, which tells you more about the position than the headline number does.
Jane Street Group added 1,441,475 shares of Strategy (MSTR) in the third quarter. That's a 53.8% increase, taking the firm to 4,119,097 shares as of Sept. 30. Sounds like conviction. It isn't necessarily.
Because the same 13F lists call options covering 13,573,000 Strategy shares and put options covering 13,991,800. Each leg is more than three times the size of the common position. Jane Street is one of the largest market makers in US equities and options. Some of that stock is a hedge against the derivatives book rather than a straight bet on the company's treasury. The filing doesn't say how much. It never does.
The dollar figures make the point. Calls valued at $2.08 billion, puts at $2.14 billion, both marked against the Sept. 30 price of $153.09. A 13F reports the shares underlying the contracts, not the premium paid for them, so the real exposure could be long, short, or close to flat. Anyone reading "Jane Street bought 54% more MSTR" as a bullish tell is reading a hedge book like a conviction letter. And the report folds in seven other included managers, which means those lines are group inventory, not one desk's call.
The price has moved since. Strategy closed Thursday at $114.41, down roughly 25% from quarter end. The same 4.1 million shares are worth about $471 million now instead of $630.6 million. And MSCI is pulling Strategy from its USA index, which forces index funds to sell by Nov. 30. The 13F captures none of it. It's a 45-day-old photograph of a room that's already been rearranged.
The rest of the early wave is mixed. Capital International Investors went up 4.5% to 36.5 million shares, Invesco up 10.9% to 10.4 million. JPMorgan added 36% to 848,932 and still holds 11.4 million IBIT shares. Renaissance cut 41% to 1,515,560 and dropped its spot bitcoin ETF lines entirely. Goldman, Morgan Stanley, Millennium and Mubadala haven't filed yet. The deadline is Monday.
So here's the read. Market maker inventory isn't a signal, and the options lines are the actual story. Show me the hedge ratio. Then we'll talk.
Key Terms Explained
The first cryptocurrency, created in 2009 by the pseudonymous Satoshi Nakamoto.
Financial contracts whose value is based on an underlying asset.
Taking a position that offsets potential losses in another investment.
A trader or firm that provides liquidity by constantly offering to buy and sell an asset.