Data as of Nov 4, 2026.
CPSU vs PBJN: Cap, Buffer & Days Left
As of Nov 4, 2026 PBJN can fall 2.5% before its buffer engages and CPSU 1.6%, and CPSU resets 3 days sooner.
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Net assets on Nov 4, 2026: $30m for Calamos S&P 500 Structured Alt Protection ETF - June and $59m for PGIM S&P 500 Buffer 20 ETF - June .
CPSU: reference +1.1% since period start, fund +1.4%; buffer Floor; cap +7.3%; Full floor. Data to Nov 4, 2026.
Data to Nov 4, 2026.PBJN: reference +1.4% since period start, fund +2.0%; buffer 0 to −20; cap +12.1%; Between buffer and cap. Data to Nov 4, 2026.
PBJN: reference +1.4% since period start, fund +2.0%; buffer 0 to −20; cap +12.1%; Between buffer and cap. Data to Nov 4, 2026.Pair scorecard
PBJN costs 0.19 points a year less; their one-year returns differ by 2.3 points; PBJN is 2.0 times larger.
Points (pts) are percentage points.
| Measure | CPSU | PBJN |
|---|---|---|
| Return | ||
| Total return, 1 year | +4.7% | +7.0% |
| Drawdown | ||
| Index fall to the buffer | 1.1% | 1.4% |
| Benchmark | ||
| What it tracks | SPY | SPY |
| Cost and size | ||
| Expense ratio | 0.69% | 0.50% |
| Net assets | $30m | $59m |
| Holdings | ||
| Holdings in common | not published | |
Window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | CPSU | PBJN | CPSU | PBJN |
| 3 months | +0.6% | +0.6% | +1.0 pts | +1.0 pts |
| 6 months | +1.7% | +2.4% | −2.8 pts | −2.1 pts |
| 1 year | +4.7% | +7.0% | −8.9 pts | −6.6 pts |
| Since launchNot the same days: CPSU Jun 2025 · PBJN Jun 2024 | +7.9% | +25.9% | −21.4 pts | −19.3 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.
These are two different products. CPSU is a floor fund, which caps how far a holder can fall. PBJN is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.
Where each one stands today
CPSU resets first, on May 28, 2027, 205 days from now; PBJN runs to May 31, 2027, 208 days. A fall from here reaches CPSU’s buffer after 1.6% and PBJN’s after 2.5%. Both track SPY, so what separates them is where each is in its own period.
CPSU
The fund's price can fall 1.6% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 1.1% 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. 205 days remained on Nov 4, 2026. On May 28, 2027 the period ends and a new cap is set.
PBJN
From its price on Nov 4, 2026, the fund can gain about 9.3% more before it reaches its cap. The fund's price can fall 2.5% from here before the buffer starts absorbing losses, by the issuer's number. In index terms, SPY can fall 1.4% from today's level to the point where the buffer begins. Protection left, in index points: 20.0% of the 20.0% buffer still sits below today's SPY level. 208 days remained on Nov 4, 2026. On May 31, 2027 the period ends and a new cap is set.
Questions people ask
Links are sources, not endorsements. A comparison is not a recommendation.
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.
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ETFIQ, CPSU against PBJN, data as of Nov 4, 2026. https://etfiq.com/compare/buffer/cpsu-vs-pbjn
ETFIQ. (Nov 4, 2026). CPSU against PBJN. Retrieved from https://etfiq.com/compare/buffer/cpsu-vs-pbjn
[CPSU against PBJN (ETFIQ, Nov 4, 2026)](https://etfiq.com/compare/buffer/cpsu-vs-pbjn)
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