Data as of Nov 4, 2026.
AUGM vs CPST: Cap, Buffer & Days Left
As of Nov 4, 2026 AUGM can fall 1.5% before its buffer engages and CPST 0.6%, and AUGM resets 11 days sooner.
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Net assets: $66m on Nov 3, 2026 for FT Vest U.S. Equity Max Buffer ETF - August, and $41m on Nov 4, 2026 for Calamos S&P 500 Structured Alt Protection ETF - September.
AUGM: reference +0.1% since period start, fund +0.7%; buffer Floor; cap +8.0%; Full floor. Data to Nov 4, 2026.
Data to Nov 4, 2026.CPST: reference +0.7% since period start, fund +0.5%; buffer Floor; cap +8.1%; Full floor. Data to Nov 4, 2026.
Data to Nov 4, 2026.Pair scorecard
CPST costs 0.16 points a year less; their one-year returns differ by 0.3 points; AUGM is 1.6 times larger.
Points (pts) are percentage points.
| Measure | AUGM | CPST |
|---|---|---|
| Return | ||
| Total return, 1 year | +5.5% | +5.2% |
| Drawdown | ||
| Index fall to the buffer | 0.1% | 0.7% |
| Benchmark | ||
| What it tracks | SPY | SPY |
| Cost and size | ||
| Expense ratio | 0.85% | 0.69% |
| Net assets, as of Nov 3, 2026 | $66m | $41m |
| Holdings | ||
| Holdings in common | not published | |
Window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | AUGM | CPST | AUGM | CPST |
| 3 months | +0.8% | +0.8% | +1.2 pts | +1.2 pts |
| 6 months | +2.4% | +2.3% | −2.1 pts | −2.1 pts |
| 1 year | +5.5% | +5.2% | −8.1 pts | −8.4 pts |
| Since launchNot the same days: AUGM Aug 2024 · CPST Sep 2024 | +14.1% | +14.1% | −23.0 pts | −24.8 pts |
Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. Open this comparison in the app →
Side by side
As of Nov 4, 2026. Source: ETFIQ.
Where each one stands today
AUGM resets first, on Aug 20, 2027, 289 days from now; CPST runs to Aug 31, 2027, 300 days. A fall from here reaches AUGM’s buffer after 1.5% and CPST’s after 0.6%. Both track SPY, so what separates them is where each is in its own period.
AUGM
From its price on Nov 4, 2026, the fund can gain about 6.5% more before it reaches its cap. The fund's price can fall 1.5% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.1% from today's level to the point where the buffer begins. Protection left, in index points: 100.0% of the 100.0% buffer still sits below today's SPY level. 289 days remained on Nov 4, 2026. On Aug 20, 2027 the period ends and a new cap is set.
CPST
The fund's price can fall 0.6% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 0.7% from today's level to the point where the buffer begins. 300 days remained on Nov 4, 2026. On Aug 31, 2027 the period ends and a new cap is set.
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How this is computed
ETFIQ calculates every number from each issuer’s published outcome-period terms. Buffer ETFs hold options on an index, not shares, so there is no holdings overlap to report.
Every number is an ETFIQ calculation with distributions reinvested.
Cite this pageCitation, APA and Markdown
ETFIQ, AUGM against CPST, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/augm-vs-cpst
ETFIQ. (Nov 4, 2026). AUGM against CPST. Retrieved from https://etfiq.com/compare/buffer/augm-vs-cpst
[AUGM against CPST (ETFIQ, Nov 4, 2026)](https://etfiq.com/compare/buffer/augm-vs-cpst)
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