NYSE Arca · CPSU · ETF
Calamos S&P 500 Structured Alt Protection ETF June (CPSU) ETF price history
Every NYSE Arca trading session of Calamos S&P 500 Structured Alt Protection ETF June from Jun 2, 2025 to Sep 25, 2026: 332 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
CPSU adjusted close, 2025 to 2026
- $27.95
- All time high, 2026
- $29.01
- 52 week high, $26.68 low
- 332
- Daily sessions since 2025
Last updated Sep 25, 2026, the last stored session. Refreshes after each trading day. Full 2025 to 2026 series and minute bars.
CPSU key facts
- Calamos S&P 500 Structured Alt Protection ETF June (CPSU) closed at $27.95 on Sep 25, 2026 on NYSE Arca.
- CPSU's all time high close is $27.95, set on Aug 14, 2026; its all time low close is $26.00 on Jun 2, 2025.
- CPSU's 52 week range is $26.68 to $29.01.
- CPSU returned +4.7% over the year to Sep 25, 2026.
- Since Jun 2, 2025 CPSU returned +7%, +5.7% a year compounded.
- CPSU's deepest drawdown was -1.0% from Feb 25, 2026 to Mar 30, 2026.
- DataCedar holds 332 daily sessions of CPSU history from Jun 2, 2025 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
CPSU price chart, 2025 to 2026
CPSU returns
Price return from the last close on or before the window start to Sep 25, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +0.2% |
| 3 months | +1.5% |
| 6 months | +2.8% |
| Year to date | +3.2% |
| 1 year | +4.7% |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Jun 2, 2025 | +7.5% |
| Compound annual growth, 1.3 years | +5.7% |
CPSU records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $27.95 on Aug 14, 2026
- All time low close
- $26.00 on Jun 2, 2025
- 52 week high
- $29.01 on Jun 1, 2026
- 52 week low
- $26.68 on Sep 25, 2025
- Deepest drawdown
- -1.0% from Feb 25, 2026 to Mar 30, 2026, recovered Apr 8, 2026
- Best single session
- +0.7% on Mar 31, 2026
- Worst single session
- -0.5% on Jun 17, 2026
- Volatility, 1 year annualised
- 2.2%
- Sessions closing higher, 1 year
- 52%
CPSU price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2025 starts on Jun 2, 2025; 2026 runs to Sep 25, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $27.08 | $29.01 | $27.00 | $27.95 | +3.2% | 751.3K | 184 |
| 2025 | $25.95 | $28.65 | $25.94 | $27.08 | n/a | 1.5M | 148 |
CPSU monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $27.95 | +0.2% |
| August 2026 | $27.89 | +0.6% |
| July 2026 | $27.71 | +0.3% |
| June 2026 | $27.64 | -0.2% |
| May 2026 | $27.68 | +0.4% |
| April 2026 | $27.56 | +1.4% |
| March 2026 | $27.17 | -0.3% |
| February 2026 | $27.26 | +0.3% |
| January 2026 | $27.18 | +0.4% |
| December 2025 | $27.08 | +0.6% |
| November 2025 | $26.92 | +0.3% |
| October 2025 | $26.83 | +0.4% |
About the CPSU data
Daily bars. 332 sessions from Jun 2, 2025 to Sep 25, 2026, one row per NYSE Arca trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are NYSE Arca trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Jun 2, 2025, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/CPSU/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on NYSE Arca
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Common questions
CPSU share price history
