CPSN vs NVBT: which one stands where?

As of Oct 2, 2026 NVBT can fall 11.4% before its buffer engages and CPSN 5.9%. Calamos S&P 500 ® Structured Alt Protection ETF - November and AllianzIM U.S. Equity Buffer10 ETF - Nov.

CPSN costs 0.05 points a year less; their one-year returns differ by 7.0 points; CPSN is 1.1 times larger.

CPSNNVBT
Expense ratio0.69%0.74%
Net assets$34m$31m
Total return, 1 year+6.2%+13.2%
What it tracksSPYSPY
Holdings in commonnot published
CPSNAt its cap
At its capCPSN: reference +12.6% since period start, fund +5.7%; buffer −1 to floor; cap +6.2%; At its cap.full floor beneathfull floor−0.6% buffer start0% period start+6.2% capTODAY · SPY +12.6%At its capCPSN: reference +12.6% since period start, fund +5.7%; buffer −1 to floor; cap +6.2%; At its cap.full floor beneathfull floor−0.6% buffer start0% start+6.2% capTODAY · SPY +12.6%

CPSN: reference +12.6% since period start, fund +5.7%; buffer −1 to floor; cap +6.2%; At its cap.

NVBTBetween buffer and cap
Between buffer and capNVBT: reference +12.8% since period start, fund +11.9%; buffer 0 to −10; cap +16.8%; Between buffer and cap.10 pts+12.8%−10.0% floor0% period start+16.8% capTODAY · SPY +12.8%Between buffer and capNVBT: reference +12.8% since period start, fund +11.9%; buffer 0 to −10; cap +16.8%; Between buffer and cap.−10.0% floor0% start+16.8% capTODAY · SPY +12.8%

NVBT: reference +12.8% since period start, fund +11.9%; buffer 0 to −10; cap +16.8%; Between buffer and cap.

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

CPSN is already at its cap, so more rise in the index adds nothing to it before the period ends.

Where each one stands today

CPSN resets first, on Oct 30, 2026, 28 days from now; NVBT runs to Oct 31, 2026, 28 days. A fall from here reaches CPSN’s buffer after 5.9% and NVBT’s after 11.4%. Both track SPY, 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
WindowCPSNNVBTCPSNNVBT
3 months+2.1%+3.6%−1.5 pts0.0 pts
6 months+5.2%+13.8%−12.7 pts−4.2 pts
1 year+6.2%+13.2%−10.1 pts−3.0 pts
3 yearsnot published+51.0%not published−38.3 pts

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

On the same fields

CPSN
Calamos S&P 500 ® Structured Alt Protection ETF - November · Absorbs losses from 0.6% to 100.0% on SPY and caps the gain at 6.2%, over a period ending Oct 30, 2026
NVBT
AllianzIM U.S. Equity Buffer10 ETF - Nov · Absorbs the first 10% of loss on SPY and caps the gain at 16.8%, over a period ending Oct 31, 2026
Issuer Calamos AllianzIM
Reference index SPY SPY
Buffer 1% to 100% 10%
Outcome period Nov 3, 2025 to Oct 30, 2026 Nov 1, 2025 to Oct 31, 2026
Days left 28 28
Starting cap +6.2% +16.8%
Can still gain not published 3.7%
Fall before buffer 5.9% 11.4%
Protection left, index points 99.4% of 99.4% 10.0% of 10.0%
Index return this period +12.6% +12.8%
Fund return this period +5.7% +11.9%
State today At cap Open
Expense ratio 0.69% 0.74%
Net assets $34m $31m

CPSN and NVBT on the same fields, as of Oct 2, 2026. Source: ETFIQ.

CPSN in plain words

SPY had already risen past this fund's cap of +6.2% for the period on Oct 2, 2026, so in index terms there is no more upside to collect. The fund's price can fall 5.9% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 11.7% from today's level to the point where the buffer begins. Protection left, in index points: 99.4% of the 99.4% buffer still sits below today's SPY level. 28 days remained on Oct 2, 2026. On Oct 30, 2026 the period ends and a new cap is set.

NVBT in plain words

From its price on Oct 2, 2026, the fund can gain about 3.7% more before it reaches its cap. The fund's price can fall 11.4% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 11.4% from today's level to the point where the buffer begins. Protection left, in index points: 10.0% of the 10.0% buffer still sits below today's SPY level. On Oct 31, 2026 the period ends and a new cap is set.

Questions people ask

Which resets first, CPSN or NVBT?
CPSN ends its outcome period on Oct 30, 2026 and NVBT on Oct 31, 2026. A new cap is set the day after each.
Which is cheaper, CPSN or NVBT?
CPSN charges 0.69% a year and NVBT charges 0.74%, so CPSN is cheaper. Fees come from each fund's prospectus.
Cite this page

ETFIQ, CPSN against NVBT, data as of Oct 2, 2026. https://etfiq.com/compare/buffer/cpsn-vs-nvbt

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.