If You Invested in Calamos S&P 500 Structured Alt Protection ETF - September (CPST)
Looking for the current price? See the CPST quote & overviewWhat $1,000 or $10,000 in CPST Would Be Worth Now
Real historical value by amount invested and how long ago| If you invested | 1 year ago | 5 years ago | 10 years ago | Since Sep 21, 2015 |
|---|---|---|---|---|
| $1,000 | $1,050 +5% | $6,088 +509% | $21,101 +2,010% | $77,742 +7,674% |
| $10,000 | $10,500 +5% | $60,878 +509% | $211,014 +2,010% | $777,421 +7,674% |
Based on real historical closing prices, dividend- and split-adjusted, through 2026-09-17. Past performance does not guarantee future results.
Custom Calculation
Choose your own date and amount for CPST$1,000 Investment Over Time
CPST vs S&P 500Year-by-Year Returns
CPST annual performance| Year | Start Price | End Price | Annual Return | Cumulative |
|---|---|---|---|---|
| 2016 | $1.45 | $0.6801 | -53.1% | -53.1% |
| 2017 | $0.73 | $0.77 | +5.5% | -46.9% |
| 2018 | $0.7770 | $0.5987 | -22.9% | -58.7% |
| 2019 | $0.76 | $3.06 | +302.6% | +111.0% |
| 2020 | $3.42 | $10.70 | +212.9% | +637.9% |
| 2021 | $10.23 | $3.32 | -67.5% | +129.0% |
| 2022 | $3.54 | $4.39 | +24.0% | +202.8% |
| 2024 | $24.75 | $25.32 | +2.3% | +1646.2% |
| 2025 | $25.33 | $27.02 | +6.7% | +1763.7% |
| 2026 | $27.04 | $28.06 | +3.8% | +1835.5% |
About Calamos S&P 500 Structured Alt Protection ETF - September
NYSE
Frequently Asked Questions
Calamos S&P 500 Structured Alt Protection ETF - September investment returns
How much would $1,000 invested in Calamos S&P 500 Structured Alt Protection ETF - September be worth today?
If you invested $1,000 in Calamos S&P 500 Structured Alt Protection ETF - September (CPST) 10 years ago on 2016-09-19, your investment would be worth $21,101 as of 2026-09-17, representing a +2,010.1% total return, growing at a compounded rate of 35.7% per year (CAGR).
Has Calamos S&P 500 Structured Alt Protection ETF - September outperformed the S&P 500?
Over the past 10 years, CPST returned +2,010.1% compared to +307.7% for the S&P 500, outperforming the benchmark by 1,702.4 percentage points.
What is Calamos S&P 500 Structured Alt Protection ETF - September's average annual return?
The compound annual growth rate (CAGR) of CPST over the past 10 years is 35.7%, growing at a compounded rate each year. Individual years vary significantly — CPST's best recent year was 2019 (+302.6%) and worst was 2021 (-67.5%).
Your Privacy is Protected
This calculator sends the symbol, date, and amount you enter to our server so we can fetch historical market data and render the result. We do not save those entries as a portfolio or account, but standard web server logs may still record the page request.
For informational and educational purposes only — not investment advice.
