BlackRock filed on Monday for the iShares Bitcoin Managed Protect ETF, which would offer bitcoin upside exposure while seeking to limit losses when the cryptocurrency falls. A similar Calamos fund, CBOO, dropped just 1% since October 2025, even as bitcoin tumbled as much as 52% from its record high of roughly $126,000. BlackRock's filing did not say how much downside protection or upside the new fund would offer, and the fund would build on its iShares Bitcoin Trust (IBIT), which manages more than $65 billion. Calamos holds roughly 90% of its funds in U.S. Treasuries and uses the rest for bitcoin-linked options, a structure that caps gains while limiting losses over a set period.
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Related tickers and likely impact
BTC/USDT
• NeutralBitcoin
Relevance: low
| Market | Crypto |
|---|---|
| Exchange | Binance |
| Sector | Layer 1 |
| Market cap | $1.6T |
| Close on 10/19/2026 | 81,938.40 |
| Change that session | -0.22% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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