Calamos Bitcoin 90 Series Structured Alt Protection ETF - October (CBXO)

The Calamos Bitcoin 90 Series Structured Alt Protection ETF - October (CBXO) is an exchange-traded fund from Calamos Investments that seeks bitcoin-linked returns within a defined range over a one-year outcome period beginning in October.

The fund relies on options on bitcoin-related reference assets to offer upside up to a cap fixed at the start of each period while seeking to protect against most downside losses, with the 90 Series designed around a 90 percent protection level. It does not hold bitcoin directly, and the stated outcomes apply to shares held for the full period before the option positions are renewed.