Which resets first, CBOO or CBTO?

CBOO ends its outcome period on Oct 7, 2026 and CBTO on Oct 7, 2026. A new cap is set the day after each.

Which is cheaper, CBOO or CBTO?

CBOO charges 0.69% a year and CBTO charges 0.69%, so CBOO is cheaper. Fees come from each fund's prospectus.

CBOO vs CBTO: which one stands where?

As of Oct 1, 2026 CBOO can fall 0.0% before its buffer engages and CBTO 0.0%. Calamos Bitcoin Structured Alt Protection ETF - October and Calamos Bitcoin 80 Series Structured Alt Protection ETF - October.

CBOOBuffer working

CBOO: reference −30.8% since period start, fund −0.8%; buffer −1 to floor; cap +7.3%; Buffer working.

CBTOBuffer working

CBTO: reference −30.8% since period start, fund −20.6%; buffer −21 to floor; cap +41.0%; Buffer working.

Both are Calamos funds, so the difference between them is the terms rather than the house.

Where each one stands today

CBOO resets first, on Oct 7, 2026, 6 days from now; CBTO runs to Oct 7, 2026, 6 days. A fall from here reaches CBOO’s buffer after 0.0% and CBTO’s after 0.0%. Both track Bitcoin, so what separates them is where each is in its own period.

Every figure is ETFIQ’s own, from the issuer’s published outcome-period terms. A buffer ETF holds FLEX options on its reference index rather than shares, so there is no holdings overlap between two of them to report.

Performance, window by window

	Total return		Gap to the reference
Window	CBOO	CBTO	CBOO	CBTO
3 months	+0.7%	+0.6%	not available	not available
6 months	+1.2%	−1.1%	not available	not available

CBOO and CBTO over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

CBOO

Calamos Bitcoin Structured Alt Protection ETF - October · Absorbs losses from 1.2% to 100.0% on Bitcoin and caps the gain at 7.3%, over a period ending Oct 7, 2026

CBTO

Calamos Bitcoin 80 Series Structured Alt Protection ETF - October · Absorbs losses from 20.6% to 100.0% on Bitcoin and caps the gain at 41.0%, over a period ending Oct 7, 2026

Issuer Calamos Calamos

Reference index Bitcoin Bitcoin

Buffer 1% to 100% 21% to 100%

Outcome period Oct 7, 2025 to Oct 7, 2026 Oct 7, 2025 to Oct 7, 2026

Days left 6 6

Starting cap +7.3% +41.0%

Can still gain not published not published

Fall before buffer 0.0% 0.0%

Protection left, index points 69.2% of 98.8% 69.2% of 79.4%

Index return this period −30.8% −30.8%

Fund return this period −0.8% −20.6%

State today Buffer working Buffer working

Expense ratio 0.69% 0.69%

Net assets $6m $19m

CBOO and CBTO on the same fields, as of Oct 1, 2026. Source: ETFIQ.

CBOO in plain words

Protection left, in index points: 69.2% of the 98.8% buffer still sits below today's Bitcoin level. 6 days remained on Oct 1, 2026. On Oct 7, 2026 the period ends and a new cap is set.

CBTO in plain words

Protection left, in index points: 69.2% of the 79.4% buffer still sits below today's Bitcoin level.

Questions people ask

Which resets first, CBOO or CBTO?: CBOO ends its outcome period on Oct 7, 2026 and CBTO on Oct 7, 2026. A new cap is set the day after each.
Which is cheaper, CBOO or CBTO?: CBOO charges 0.69% a year and CBTO charges 0.69%, so CBOO is cheaper. Fees come from each fund's prospectus.

Other comparisons

CBOO vs CBXO CBTO vs CBXO

CBOO on its own →CBTO on its own →How every figure is computed →Standards and sources →

Where these figures came from

CBOO and CBTO filings on SEC EDGAR ↗Calamos website ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement. A comparison is not a recommendation.

Cite this page

ETFIQ, CBOO against CBTO, data as of Oct 1, 2026. https://etfiq.com/compare/buffer/cboo-vs-cbto

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.