NYSE ARCA:CPST | Stock Price History | Calamos S&P 500 Structured Alt Protection ETF September

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2026-07-24 to 2026-09-04
Data captured

Historical Stock Price

DateOpen priceExchange Volume
2026-09-04$28.18300
2026-09-03$28.16429
2026-09-02$28.08600
2026-09-01$28.051,677
2026-08-19$28.03100
2026-08-17$28.07100
2026-08-11$28.00200
2026-08-05$27.99554
2026-07-30$27.93302
2026-07-24$27.88143