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 +5.36% over the past year and +4.28% YTD, with dividends reinvested. Since Sep. 3, 2024, CPST is up +13.86% in nominal total return, or +6.34%/yr, and is currently −0.24% below its total-return high on Oct. 9, 2026.

Data ending Wed Oct. 14, 2026

Growth of $10,000

Tue 2024-09-03💬 to Wed 2026-10-14 Overall
Return 		Exponential
Trendline
CPST × 		+13.86%
+6.34%/yr 		+6.56%/yr
R2=0.949
Calamos S&P 500 Structured Alt Protection ETF - September Exchange-Traded Fund

Growth of $10,000 Summary

Tue 2024-09-03💬 to Wed 2026-10-14 Start
Value 		End
Value
CPST × 		$10,000.00
2024-09-03 		$11,385.74
2026-10-14

This Year’s Performance

through 2026-10-14

  YTD YoY
CPST × 		+4.28% +5.36%

Drawdowns

  Current
Drawdown 		Worst
Drawdown
CPST × 		−0.24%
on 2026-10-14
from 2026-10-09 peak 		−3.79%
on 2025-04-08
from 2025-02-19 peak

Rolling Returns

Period ending Wed 2026-10-14 1 yr 2 yr 3 yr 5 yr 10 yr
CPST × 		+5.36% +12.14%
+5.89%/yr 		— — —

Annual Returns

Year CPST
2026 (YTD) +4.28%
2025 +6.73%
2024 +2.30%