CPSU vs DLMY: Cap, Buffer & Days Left

As of Oct 9, 2026 DLMY can fall 5.1% before its buffer engages and CPSU 1.6%, and DLMY resets 7 days sooner. Net assets on Oct 9, 2026: $29m for Calamos S&P 500 ® Structured Alt Protection ETF - June and $12m for FT Vest U.S. Equity Dual Directional Buffer ETF - May.

CPSU costs 0.16 points a year less; CPSU is 2.3 times larger.

CPSUDLMY
Expense ratio0.69%0.85%
Net assets$29m$12m
Total return, 1 year+4.9%not published
What it tracksSPYSPY
Holdings in commonnot published
Index fall to the buffer2.6%5.1%
CPSUFull floor
Full floorCPSU: reference +2.6% since period start, fund +1.5%; buffer Floor; cap +7.3%; Full floor. Figures to Oct 9, 2026.full floor beneathfull floor0% period start+7.3% cap+2.6% gain captured+4.6% more to the capTODAY · SPY +2.6%Full floorCPSU: reference +2.6% since period start, fund +1.5%; buffer Floor; cap +7.3%; Full floor. Figures to Oct 9, 2026.full floor beneathfull floor0% start+7.3% cap+2.6% gain captured+4.6% more to the capTODAY · SPY +2.6%

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.

DLMYBetween buffer and cap
Between buffer and capDLMY: reference +5.3% since period start, fund +4.4%; buffer 0 to −10; cap +14.1%; Between buffer and cap. Figures to Oct 9, 2026.10 pts of buffer+5.3%+8.8% to cap−10.0% floor0% period start+14.1% capTODAY · SPY +5.3%Between buffer and capDLMY: reference +5.3% since period start, fund +4.4%; buffer 0 to −10; cap +14.1%; Between buffer and cap. Figures to Oct 9, 2026.−10.0% floor0% start+14.1% cap10 pts of buffer+5.3% gain captured+8.8% more to the capTODAY · SPY +5.3%

DLMY: reference +5.3% since period start, fund +4.4%; buffer 0 to −10; cap +14.1%; Between buffer and cap. Figures to Oct 9, 2026.

DLMY: reference +5.3% since period start, fund +4.4%; buffer 0 to −10; cap +14.1%; Between buffer and cap. Figures to Oct 9, 2026.

These are two different products. CPSU is a floor fund, which caps how far a holder can fall. DLMY 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

DLMY resets first, on May 21, 2027, 224 days from now; CPSU runs to May 28, 2027, 231 days. A fall from here reaches CPSU’s buffer after 1.6% and DLMY’s after 5.1%. Both track SPY, so what separates them is where each is in its own period.

Performance, window by window

Total returnGap to the reference's price return
WindowCPSUDLMYCPSUDLMY
3 months+1.4%+2.7%−1.8 pts−0.5 pts
6 months+2.4%not published−12.2 ptsnot published
1 year+4.9%not published−11.1 ptsnot 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

CPSU
Calamos S&P 500 ® Structured Alt Protection ETF - June · Absorbs the whole loss on SPY and caps the gain at 7.3%, over a period ending May 28, 2027
DLMY
FT Vest U.S. Equity Dual Directional Buffer ETF - May · Absorbs the first 10% of loss on SPY and caps the gain at 14.1%, over a period ending May 21, 2027
Reference index SPY SPY
Buffer 100% 10%
Outcome period Jun 1, 2026 to May 28, 2027 May 18, 2026 to May 21, 2027
Days left 231 224
Starting cap +7.3% +14.1%
Can still gain not published 8.4%
Fall before buffer 1.6% 5.1%
Protection left, index points 100.0% of 100.0% 10.0% of 10.0%
Index return this period +2.6% +5.3%
Fund return this period +1.5% +4.4%
State today Open Open
Expense ratio 0.69% 0.85%
Net assets $29m $12m

As of Oct 9, 2026. Source: ETFIQ.

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.

DLMY in plain words

From its price on Oct 9, 2026, the fund can gain about 8.4% more before it reaches its cap. The fund's price can fall 5.1% from here before the buffer starts absorbing losses, by the issuer's figure. In index terms, SPY can fall 5.1% 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. 224 days remained on Oct 9, 2026. On May 21, 2027 the period ends and a new cap is set.

Questions people ask

Which resets first, CPSU or DLMY?
CPSU ends its outcome period on May 28, 2027 and DLMY on May 21, 2027. A new cap is set the day after each.
Which is cheaper, CPSU or DLMY?
CPSU charges 0.69% a year and DLMY charges 0.85%, so CPSU is cheaper. Fees come from each fund's prospectus.
Other comparisons
Where these figures came from

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.

Cite this page

ETFIQ, CPSU against DLMY, data as of Oct 9, 2026. https://etfiq.com/compare/buffer/cpsu-vs-dlmy

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.