BJUN vs CPSU: Cap, Buffer & Days Left
As of Oct 9, 2026 BJUN can fall 3.3% before its buffer engages and CPSU 1.6%, and CPSU resets 3 days sooner. Net assets on Oct 9, 2026: $246m for Innovator U.S. Equity Buffer ETF - Jun and $29m for Calamos S&P 500 ® Structured Alt Protection ETF - June.
CPSU costs 0.10 points a year less; their one-year returns differ by 5.0 points; BJUN is 8.5 times larger.
| BJUN | CPSU | |
|---|---|---|
| Expense ratio | 0.79% | 0.69% |
| Net assets | $246m | $29m |
| Total return, 1 year | +9.9% | +4.9% |
| What it tracks | SPY | SPY |
| Holdings in common | not published | |
| Index fall to the buffer | 2.8% | 2.6% |
BJUN: reference +2.9% since period start, fund +3.1%; buffer 0 to −9; cap +18.1%; Between buffer and cap. Figures to Oct 9, 2026.
BJUN: reference +2.9% since period start, fund +3.1%; buffer 0 to −9; cap +18.1%; Between buffer and cap. Figures to Oct 9, 2026.
CPSU: reference +2.6% since period start, fund +1.5%; buffer Floor; cap +7.3%; Full floor. Figures to Oct 9, 2026.
Figures to Oct 9, 2026.
These are two different products. CPSU is a floor fund, which caps how far a holder can fall. BJUN 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, 231 days from now; BJUN runs to May 31, 2027, 234 days. A fall from here reaches BJUN’s buffer after 3.3% and CPSU’s after 1.6%. Both track SPY, so what separates them is where each is in its own period.
Performance, window by window
| Total return | Gap to the reference's price return | |||
|---|---|---|---|---|
| Window | BJUN | CPSU | BJUN | CPSU |
| 3 months | +2.7% | +1.4% | −0.4 pts | −1.8 pts |
| 6 months | +5.9% | +2.4% | −8.7 pts | −12.2 pts |
| 1 year | +9.9% | +4.9% | −6.1 pts | −11.1 pts |
| 3 years | +51.5% | not published | −27.7 pts | not published |
Each fund's gap is to its reference's price return, dividends left out: the basis the outcome period uses. Source: ETFIQ. Open the live comparison on ETFIQ →
On the same fields
As of Oct 9, 2026. Source: ETFIQ.
BJUN in plain words
From its price on Oct 9, 2026, the fund can gain about 14.3% more before it reaches its cap. The fund's price can fall 3.3% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 2.8% from today's level to the point where the buffer begins. Protection left, in index points: 9.0% of the 9.0% buffer still sits below today's SPY level. 234 days remained on Oct 9, 2026. On May 31, 2027 the period ends and a new cap is set.
CPSU in plain words
The fund's price can fall 1.6% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 2.6% 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. 231 days remained on Oct 9, 2026. On May 28, 2027 the period ends and a new cap is set.
Questions people ask
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
ETFIQ calculates every figure 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 figure is an ETFIQ calculation with distributions reinvested.
ETFIQ, BJUN against CPSU, data as of Oct 9, 2026. https://etfiq.com/compare/buffer/bjun-vs-cpsu
ETFIQ. (Oct 9, 2026). BJUN against CPSU. Retrieved from https://etfiq.com/compare/buffer/bjun-vs-cpsu
[BJUN against CPSU (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/buffer/bjun-vs-cpsu)
Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.