Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty

Published 13 Sep 2026, 21:52 UTC. Updated 14 Sep 2026, 14:43 UTC.

Blockchain security firm Blockaid said roughly 46.1 billion syBTC were minted but the attacker realized only about $336,000 in proceeds.

Directly affected

No company is named in this report.

Indirectly affected

IBIT iShares Bitcoin Trust
This price moves with the crypto market
COIN Coinbase
The crypto exchange moves with trading volumes
MSTR Strategy
This company's value is tied to its bitcoin holdings
MARA MARA Holdings
Bitcoin miners move with the bitcoin price
RIOT Riot Platforms
Bitcoin miners move with the bitcoin price
HOOD Robinhood
Retail trading apps move with crypto volumes
BITB BITWISE BITCOIN ETF TR
GA selected BITB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
BITU PROSHARES ULTRA BITCOIN ETF
GA selected BITU as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
BITX 2X BITCOIN STRATEGY ETF
GA selected BITX as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.
GBTC GRAYSCALE BITCOIN TRUST ETF
GA selected GBTC as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

Price reaction, T-5 to T+3

Ticker	T-5	T-3	T-1	T0	T+1	T+2	T+3
IBIT	—	—	—	—	—	—	—
COIN	—	—	—	—	—	—	—
MSTR	—	—	—	—	—	—	—
MARA	—	—	—	—	—	—	—
RIOT	—	—	—	—	—	—	—
HOOD	—	—	—	—	—	—	—
BITB	—	—	—	—	—	—	—
BITU	—	—	—	—	—	—	—
BITX	—	—	—	—	—	—	—
GBTC	—	—	—	—	—	—	—

Blockchain security firm Blockaid said roughly 46.1 billion syBTC were minted but the attacker realized only about $336,000 in proceeds.

Source: The Block

Bitwise Bitcoin ETF (BITB) since this story, compared with the market

Since the first closing price after “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” Bitwise Bitcoin ETF (BITB) is +7.52%. The S&P 500 fund (SPY) is +0.77% over the same days, a +6.75% difference versus the market.

BITB

SPY

Who gains and who loses around Bitwise Bitcoin ETF (BITB)

Companies tied to this story

BITB Bitwise Bitcoin ETF
In “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” Bitwise Bitcoin ETF (BITB) is linked, with no stored direction, medium confidence. Reason on file: GA selected BITB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
BITU Proshares Ultra Bitcoin Etf
In “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” Proshares Ultra Bitcoin Etf (BITU) is linked, with no stored direction, medium confidence. Reason on file: GA selected BITU as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
BITX 2X Bitcoin Strategy Etf
In “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” 2X Bitcoin Strategy Etf (BITX) is linked, with no stored direction, medium confidence. Reason on file: GA selected BITX as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
GBTC Grayscale Bitcoin Trust ETF
Grayscale Bitcoin Trust ETF (GBTC) is linked, with no stored direction, medium confidence in the 13 Sep 2026 story “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty.” Reason on file: GA selected GBTC as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
IBIT iShares Bitcoin Trust ETF
In “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” iShares Bitcoin Trust ETF (IBIT) is linked, with no stored direction, medium confidence. Reason on file: GA selected IBIT as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article
ARKB Ark 21Shares Bitcoin ETF
In “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” Ark 21Shares Bitcoin ETF (ARKB) is linked, with no stored direction, medium confidence. Reason on file: GA selected ARKB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

Bitwise Bitcoin ETF (BITB)

Bitwise Bitcoin ETF (BITB) is the company in “Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty,” the 13 Sep 2026 this story story.

For Bitwise Bitcoin ETF (BITB), the reason on file says GA selected BITB as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

Also listed, Proshares Ultra Bitcoin Etf (BITU): GA selected BITU as a RELATED security because its canonical security name directly matches this event's themes: bitcoin. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

Dates in the story, and the Bitwise Bitcoin ETF (BITB) price range

BITB traded between 43.26 and 47.30 across 20 sessions. The latest close on file is 44.34. BITU traded between 13.70 and 16.49 across 20 sessions. The latest close on file is 14.38. BITX traded between 17.70 and 21.33 across 20 sessions. The latest close on file is 18.59.

How strong the case is around Bitwise Bitcoin ETF (BITB)

46 out of 100

“Symbiosis says it recovered 15 BTC after Bitcoin bridge exploit, offers attacker 20% bounty” scores 46 out of 100. The score uses 1 sources, and 6 linked companies.