CPNS vs QBUF: which one stands where?

As of Oct 1, 2026 CPNS can fall 0.7% before its buffer engages and QBUF 0.0%, and QBUF resets 243 days sooner. Calamos Nasdaq-100 ® Structured Alt Protection ETF - September and Innovator Nasdaq-100® 10 Buffer ETF™ - Quarterly.

CPNSFull floor
Full floorCPNS: reference +4.5% since period start, fund +0.6%; buffer −0 to floor; cap +8.7%; Full floor.full floor beneathfull floor0.0% buffer start0% period start+8.7% capTODAY · QQQ +4.5%Full floorCPNS: reference +4.5% since period start, fund +0.6%; buffer −0 to floor; cap +8.7%; Full floor.full floor beneathfull floor0.0% buffer start0% start+8.7% capTODAY · QQQ +4.5%

CPNS: reference +4.5% since period start, fund +0.6%; buffer −0 to floor; cap +8.7%; Full floor.

QBUFBetween buffer and cap
Between buffer and capQBUF: reference 0.0% since period start, fund 0.0%; buffer 0 to −10; cap +4.7%; Between buffer and cap.10 pts−10.0% floor0% period start+4.7% capTODAY · QQQ 0.0%Between buffer and capQBUF: reference 0.0% since period start, fund 0.0%; buffer 0 to −10; cap +4.7%; Between buffer and cap.−10.0% floor0% start+4.7% capTODAY · QQQ 0.0%

QBUF: reference 0.0% since period start, fund 0.0%; buffer 0 to −10; cap +4.7%; Between buffer and cap.

These are two different products. CPNS is a floor fund, which caps how far a holder can fall. QBUF is a buffer fund, which absorbs the first part of a fall and leaves everything below it with the holder.

They do not reset together. QBUF has 92 days of its period left and CPNS has 335, so the two are not the same bet on the same months.

Where each one stands today

QBUF resets first, on Dec 31, 2026, 92 days from now; CPNS runs to Sep 1, 2027, 335 days. A fall from here reaches CPNS’s buffer after 0.7% and QBUF’s after 0.0%. Both track QQQ, 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 returnGap to the reference
WindowCPNSQBUFCPNSQBUF
3 months+1.6%+0.8%−0.6 pts−1.3 pts
6 months+4.9%+5.1%−22.0 pts−21.8 pts
1 year+6.0%+7.5%−17.8 pts−16.3 pts

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

On the same fields

CPNS
Calamos Nasdaq-100 ® Structured Alt Protection ETF - September · Absorbs losses from 0.0% to 100.0% on QQQ and caps the gain at 8.7%, over a period ending Sep 1, 2027
QBUF
Innovator Nasdaq-100® 10 Buffer ETF™ - Quarterly · Absorbs the first 10% of loss on QQQ and caps the gain at 4.7%, over a period ending Dec 31, 2026
Issuer Calamos Innovator
Reference index QQQ QQQ
Buffer 0% to 100% 10%
Outcome period Sep 1, 2026 to Sep 1, 2027 Sep 30, 2026 to Dec 31, 2026
Days left 335 92
Starting cap +8.7% +4.7%
Can still gain not published 4.7%
Fall before buffer 0.7% 0.0%
Protection left, index points 100.0% of 100.0% 10.0% of 10.0%
Index return this period +4.5% 0.0%
Fund return this period +0.6% 0.0%
State today Open Open
Expense ratio 0.69% 0.79%
Net assets $24m $187m

CPNS and QBUF on the same fields, as of Oct 1, 2026. Source: ETFIQ.

CPNS in plain words

The fund's price can fall 0.7% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, QQQ can fall 4.4% 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 QQQ level. 335 days remained on Oct 1, 2026. On Sep 1, 2027 the period ends and a new cap is set.

QBUF in plain words

From its price on Oct 1, 2026, the fund can gain about 4.7% more before it reaches its cap. Protection left, in index points: 10.0% of the 10.0% buffer still sits below today's QQQ level. 92 days remained on Oct 1, 2026. On Dec 31, 2026 the period ends and a new cap is set.

Questions people ask

Which resets first, CPNS or QBUF?
CPNS ends its outcome period on Sep 1, 2027 and QBUF on Dec 31, 2026. A new cap is set the day after each.
Which is cheaper, CPNS or QBUF?
CPNS charges 0.69% a year and QBUF charges 0.79%, so CPNS is cheaper. Fees come from each fund's prospectus.
Cite this page

ETFIQ, CPNS against QBUF, data as of Oct 1, 2026. https://etfiq.com/compare/buffer/cpns-vs-qbuf

Open data

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