All charts and data below are with dividends reinvested. (Inflation adjustment is OFF !)

Total Real Returns

CPST: Total Return Chart (with Dividends Reinvested)

CPST total return snapshot: CPST returned +5.94% over the past year and +3.69% YTD, with dividends reinvested. Since Sep. 3, 2024, CPST is up +13.21% in nominal total return, or +6.61%/yr, and is currently −0.02% below its total-return high on Aug. 7, 2026.

Data ending Wed Aug. 12, 2026

Growth of $10,000

Tue 2024-09-03💬 to Wed 2026-08-12 Overall
Return 		Exponential
Trendline
CPST × 		+13.21%
+6.61%/yr 		+6.61%/yr
R2=0.936
Calamos S&P 500 Structured Alt Protection ETF - September Exchange-Traded Fund

Growth of $10,000 Summary

Tue 2024-09-03💬 to Wed 2026-08-12 Start
Value 		End
Value
CPST × 		$10,000.00
2024-09-03 		$11,321.21
2026-08-12

This Year’s Performance

through 2026-08-12

  YTD YoY
CPST × 		+3.69% +5.94%

Drawdowns

  Current
Drawdown 		Worst
Drawdown
CPST × 		−0.02%
on 2026-08-12
from 2026-08-07 peak 		−3.79%
on 2025-04-08
from 2025-02-19 peak

Rolling Returns

Period ending Wed 2026-08-12 1 yr 2 yr 3 yr 5 yr 10 yr
CPST × 		+5.94% — — — —

Annual Returns

Year CPST
2026 (YTD) +3.69%
2025 +6.73%
2024 +2.30%