Paul Tudor Jones Raises BlackRock Bitcoin ETF Stake 19%

Tudor’s BlackRock IBIT Shares Rise to 688,529

The cleanest comparison in Tudor’s two filings is the long share line. It rose from 579,083 at March 31 to 688,529 at June 30, while its reported value moved from $22.25 million to $22.92 million. The increase in shares is larger than the increase in value because the quarter-end valuation per reported share fell about 13.3%.

That sequence supports a narrow conclusion: Tudor reported more IBIT shares at the end of June than at the end of March. It does not identify the trade dates, whether the increase occurred in one transaction or across the quarter, or whether a later transaction changed the position before the Aug. 14 filing.

The filing is also not a statement from Jones personally. The manager’s public name is Tudor Investment Corp. et al, and Form 13F reports specified U.S.-listed holdings managed by a reporting institution. It should not be recast as a personal Bitcoin purchase, an investment recommendation or a forecast.

The $22.92 million entry adds another high-profile manager to the Q2 filing cycle, but it remains smaller than the biggest institutional ETF disclosures. Harvard’s newly filed report showed a $101.36 million IBIT position with an unchanged share count, while Dartmouth’s filing disclosed a broader mix of Bitcoin, Ether and Solana funds.

BlackRock says IBIT seeks to reflect Bitcoin’s price through an exchange-traded trust rather than direct wallet custody. That structure can make the asset accessible through a brokerage account, but it does not reveal why a particular manager increased, held or reduced a reported share line.

IBIT Call Options Fall 85% in the Same Filing

The derivative rows point in a different direction. Tudor’s March 31 report listed 998,000 IBIT shares under calls valued at $38.34 million and 725,000 under puts valued at $27.85 million. The June 30 table lists 148,000 calls valued at $4.93 million and 715,000 puts valued at $23.80 million.

The call-share count therefore fell by 850,000, while the put-share count fell by 10,000. That asymmetry is concrete, but the economic reading is limited. An option’s value depends on its strike, expiry, implied volatility and underlying price, and Form 13F does not supply the full set of contract terms needed to calculate a net directional exposure.

In particular, a lower reported call count does not automatically mean a manager turned bearish, and a listed put count does not prove an outright short view. Options can hedge another position, spread risk across expiries or be paired with holdings that are outside the filing’s scope.

That distinction separates the filing from daily fund-flow headlines. The U.S. spot Bitcoin funds added $865.3 million in one week earlier this month, with BlackRock’s product supplying $693.5 million, according to our IBIT flow report. Creations and redemptions measure fund-level capital flows; a 13F shows one manager’s delayed, quarter-end securities snapshot.

The combination of a larger reported IBIT share position and much smaller reported call line may draw attention because it changes the mix of disclosed instruments. The documents alone do not say whether the calls expired, were sold, were replaced with contracts not yet reportable or were offset elsewhere in Tudor’s portfolio.

A 13F Does Not Reveal Tudor’s Full Bitcoin Exposure

The SEC’s Form 13F guidance says eligible managers file after each calendar quarter, generally within 45 days. The June 30 filing thus arrived after the period it describes, and its data cannot confirm current holdings in mid-August.

It also does not show cash, short positions, many derivatives, non-U.S. securities, private investments or a manager’s rationale. The filing reports positions at a single date, which is why the IBIT share change is useful evidence of a quarter-end difference but not a full map of Tudor’s Bitcoin exposure or risk posture.

Broader Bitcoin-market sentiment remained cautious. The Crypto Fear & Greed Index stood at 34, classified as Fear, on Aug. 15. The index is a market gauge, not a measure of Tudor’s allocation, BlackRock’s ETF demand or the manager’s options strategy.

The next verifiable Tudor snapshot will be its third-quarter Form 13F. Until then, the documented change is straightforward: the manager reported 688,529 IBIT shares at June 30, 18.9% more than three months earlier, alongside a substantially smaller reported IBIT call-option share count.