Regulatory filing 📊 ETF 🌍 United States

Jane Street Boosts Fidelity Bitcoin ETF Stake 8x as JPMorgan Adds IBIT

Jane Street expanded its Fidelity Bitcoin ETF position nearly 8x in Q3, while JPMorgan increased its IBIT holdings by 9.6% and slashed its Ethereum ETF exposure.

📅 November 13, 2026 🕐 1 min read

5 assets impacted (Etf, Stocks). Net bias: 3 Bullish, 0 Bearish, 2 Neutral. Strongest signal: FBTC ↑ 4/10 (65% confidence).

📊 Affected Assets (5)

FBTC

Bullish 🤖 65%

📅 Short-term 🌍 US · Explicit

Jane Street raised its FBTC position nearly eightfold, from about 887,000 shares at the end of June to 7.01 million shares, worth $509 million on September 30. A shift of this size by a major trading firm into Fidelity's fund signals strong institutional demand, though the data is backward-looking from Q3.

Catalysts

▲ Jane Street's FBTC share count rose nearly 8x in Q3 to 7.01 million shares
▲ Position valued at $509 million as of September 30

Risk Factors

▼ The filing reflects September 30 positions; current holdings may differ

IBIT

Neutral 🤖 50%

📅 Short-term 🌍 US · Explicit

Jane Street cut its IBIT stake 19% to 20.22 million shares (worth $957 million) and Laurore trimmed 33% to 3.25 million shares, but JPMorgan added 9.6% to reach 11.41 million shares (~$540 million). The mixed institutional flows offset each other, leaving the net signal on the world's largest spot Bitcoin ETF ($56 billion in net assets) roughly balanced.

Catalysts

• Jane Street's Q3 13F shows a 19% reduction in IBIT shares
• Laurore cut its IBIT position by 1.6 million shares (-33%)

Risk Factors

• 13F data is as of September 30 and may already be stale
• JPMorgan's buying partially offsets the large reductions

ARKB

Bullish 🤖 60%

📅 Short-term 🌍 US · Explicit

Jane Street added nearly 9 million shares of ARKB, worth about $249 million, in the third quarter. A new position of this size from a major trading firm is a clear institutional vote of confidence for the fund, though the position data dates from September 30.

Catalysts

▲ Jane Street added nearly 9 million ARKB shares (~$249 million) in Q3

Risk Factors

▼ Holdings are as of September 30 and may have changed since

MSTR

Bullish 🤖 60%

📅 Short-term 🌍 US · Explicit

JPMorgan increased its holdings in Bitcoin treasury company Strategy by 36% in Q3 to nearly 849,000 shares, worth about $131 million at the end of the quarter. Growing positioning by a major US bank supports the stock's institutional demand profile, though the stake remains modest in dollar terms.

Catalysts

▲ JPMorgan raised its Strategy stake 36% to nearly 849,000 shares (~$131 million)

Risk Factors

▼ The position is only about $131 million, small relative to the company
▼ Q3 filing data may not reflect current positioning

ETHA

Neutral 🤖 50%

📅 Short-term 🌍 US · Explicit

Jane Street more than doubled its ETHA holdings, adding 7.83 million shares worth about $158 million, but JPMorgan nearly erased its position, cutting from 1.17 million shares to just 399. The opposing moves by two major institutions largely cancel out as a directional signal for the Ethereum ETF.

Catalysts

• Jane Street added 7.83 million ETHA shares (~$158 million) in Q3
• JPMorgan reduced its ETHA stake from 1.17 million shares to 399 shares

Risk Factors

• Conflicting institutional flows make the direction unclear
• Data reflects September 30 positions

🧭 Full analysis of these assets

🎯 Key Takeaways

Jane Street increased its Fidelity Wise Origin Bitcoin Fund (FBTC) holdings to 7.01 million shares, up from 887,000 in Q2.
Jane Street reduced its iShares Bitcoin Trust (IBIT) stake by 19% to 20.22 million shares, valued at $957 million.
JPMorgan added 1 million shares of IBIT, bringing its total to 11.41 million shares worth $540 million.
Jane Street added nearly 9 million shares of the ARK 21Shares Bitcoin ETF (ARKB), valued at $249 million.
JPMorgan increased its stake in Bitcoin treasury company Strategy by 36% to nearly 849,000 shares.

📝 Executive Summary

Jane Street significantly rebalanced its crypto ETF portfolio in Q3, increasing its holdings in Fidelity’s FBTC by nearly eightfold to 7.01 million shares while trimming its BlackRock IBIT position by 19%. Meanwhile, JPMorgan increased its IBIT stake by 9.6% to 11.41 million shares, even as it nearly liquidated its holdings in BlackRock’s Ethereum ETF, ETHA, reducing the position to just 399 shares.

❓ FAQ

FBTC · Which Bitcoin ETF did Jane Street buy most heavily?

Fidelity's Wise Origin Bitcoin Fund (FBTC), where it boosted its position nearly eightfold to 7.01 million shares worth $509 million at the end of Q3.

IBIT · Did big institutions dump BlackRock's Bitcoin ETF last quarter?

It was mixed: Jane Street cut its stake by 19% and Laurore by 33%, but JPMorgan increased its holdings by 9.6% to about 11.41 million shares, worth roughly $540 million.

ARKB · Did Jane Street buy any other Bitcoin ETFs besides Fidelity's and BlackRock's?

Yes, it added nearly 9 million shares of the ARK 21Shares Bitcoin ETF, worth about $249 million, in the third quarter.

MSTR · What did JPMorgan do with its Strategy shares?

It increased its holdings by 36% in the third quarter to nearly 849,000 shares, worth about $131 million at the end of Q3.

ETHA · Are institutions buying or selling BlackRock's Ethereum ETF?

Both: Jane Street more than doubled its stake with 7.83 million new shares (~$158 million), while JPMorgan nearly erased its position, cutting it to just 399 shares.

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