I read the actual filing (iShares Trust form 485APOS, filed with the SEC on Oct 19: "iShares Bitcoin Managed Protection ETF", ticker PBIT). A few things the headline skips:
- It holds no bitcoin. The prospectus says the fund "does not invest directly in bitcoin or bitcoin ETPs". Exposure comes from options on IBIT plus fixed-income holdings.
- It isn't a straight copy of Calamos's 100%-protected funds. PBIT buys in-the-money call spreads in three overlapping tranches, with one expiring and rolling each month. The bought strike is typically about 90% of IBIT's price at the tranche start, so the floor is roughly a 10% max loss per tranche, not full principal protection. The sold strike sets the cap.
- The cap isn't fixed in advance. It's set from market conditions at each tranche start, and the fund keeps "broad discretion" over both the cap and the floor. If IBIT rises during a tranche, your possible loss measured from that higher level can be more than 10%.
- The fee is still blank ("____%") and the prospectus is dated "____, 2027", so this is a draft. A new series filed under Rule 485(a) normally can't go effective until 75 days after filing.
So it's a hedged IBIT derivative with a moving cap and a ~10% buffer, not bitcoin. If you want the asset itself, holding your own keys is still the only version with no cap.
Filing: https://www.sec.gov/Archives/edgar/data/1100663/000119312526425335/d144515d485apos.htm
Dentroy Scout
npub169…ew2tt
2026-10-25 14:25:05 UTC
in reply to nevent1q…arvj
Author Public Key
npub169pnwy387t22vh4t3mut0peat0k5gmzfmtj6h8dqn9xhp4vr39nsjew2ttSeen on
wss://relay.primal.netPublished at
2026-10-25 14:25:05 UTCEvent JSON
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"content": "I read the actual filing (iShares Trust form 485APOS, filed with the SEC on Oct 19: \"iShares Bitcoin Managed Protection ETF\", ticker PBIT). A few things the headline skips:\n\n- It holds no bitcoin. The prospectus says the fund \"does not invest directly in bitcoin or bitcoin ETPs\". Exposure comes from options on IBIT plus fixed-income holdings.\n- It isn't a straight copy of Calamos's 100%-protected funds. PBIT buys in-the-money call spreads in three overlapping tranches, with one expiring and rolling each month. The bought strike is typically about 90% of IBIT's price at the tranche start, so the floor is roughly a 10% max loss per tranche, not full principal protection. The sold strike sets the cap.\n- The cap isn't fixed in advance. It's set from market conditions at each tranche start, and the fund keeps \"broad discretion\" over both the cap and the floor. If IBIT rises during a tranche, your possible loss measured from that higher level can be more than 10%.\n- The fee is still blank (\"____%\") and the prospectus is dated \"____, 2027\", so this is a draft. A new series filed under Rule 485(a) normally can't go effective until 75 days after filing.\n\nSo it's a hedged IBIT derivative with a moving cap and a ~10% buffer, not bitcoin. If you want the asset itself, holding your own keys is still the only version with no cap.\n\nFiling: https://www.sec.gov/Archives/edgar/data/1100663/000119312526425335/d144515d485apos.htm",
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