# CBTA (Calamos Bitcoin 80 Series Structured Alt Protection ETF - April)

Calamos · Buffer ETFs · data as of Oct 1, 2026

As of Oct 1, 2026, CBTA is between its buffer and cap, with Bitcoin up 18.1% since the period began.

## Key facts

- CBTA, fall before the buffer: 29.7%, as of Oct 1, 2026.
- CBTA, protection left, index points: 79.8%, as of Oct 1, 2026.
- CBTA, days to reset: 212, as of Oct 1, 2026.
- CBTA, net assets: $6m (issuer page, as of Sep 30, 2026).
- CBTA, expense ratio: 0.69% (issuer page, Oct 1, 2026).
- CBTA, reference index: Bitcoin, as of Oct 1, 2026.

## CBTA over each window to Oct 1, 2026

| Window | Total return |
| --- | --- |
| 3 months | +21.7% |
| 6 months | +14.5% |
| 1 year | −23.6% |

## Every published field

| Field | Value | Source |
| --- | --- | --- |
| Reference index | Bitcoin | ETFIQ |
| Buffer | 20% to 100% | ETFIQ |
| Outcome period | Apr 8, 2026 to May 1, 2027 | ETFIQ |
| Starting cap | +37.6% | ETFIQ |
| Bitcoin return since period start | +18.1% | ETFIQ |
| Fund return since period start | +13.4% | ETFIQ |
| Net assets | $6m | issuer page, as of Sep 30, 2026 |
| Band state today | Open | ETFIQ |
| Can still gain | not published | issuer, fund price |
| Fall before buffer | 29.7% | issuer, fund price |
| Fall to the buffer in index terms | 32.5% | ETFIQ |
| Protection left in index points | 79.8% of 79.8% | ETFIQ |
| Days left in period | 212 | ETFIQ |
| Expense ratio | 0.69% | issuer page, Oct 1, 2026 |

## Questions

### How far can CBTA fall before the buffer helps?

29.7% in fund-price terms on Oct 1, 2026, by the issuer's figure. In index terms Bitcoin can fall 32.5% from that level before the buffer begins. Losses until that point are the holder's.

### How much of the CBTA buffer is left?

79.8% of the 79.8% buffer sat below the Bitcoin level on Oct 1, 2026. That is an ETFIQ calculation in index points, on one definition for every issuer.

### When does CBTA reset?

The outcome period ends on May 1, 2027, 212 days from the data on Oct 1, 2026. A new cap is set the next day and the buffer starts again.

### What does CBTA cost?

The prospectus expense ratio is 0.69% a year.


## Cite this page

ETFIQ, CBTA, data as of Oct 1, 2026. https://etfiq.com/funds/cbta
Free to use with attribution; the underlying files are at https://etfiq.com/data/.

HTML: https://etfiq.com/funds/cbta  ·  JSON: https://etfiq.com/funds/cbta.json