The company formerly known as Capstone Turbine now trades under the ticker CGEH on OTC Markets .
The decision to buy depends on whether you are looking for the original energy company or the current ETF that uses the ticker . As of April 28, 2026 , the ticker CPST primarily refers to the Calamos S&P 500 Structured Alt Protection ETF . 1. Current Ticker Confusion should i buy cpst stock
Shares recently traded at $27.4751 , showing a 10.13% increase over the past year. The company formerly known as Capstone Turbine now
The original Capstone Green Energy Corp previously traded under CGRNQ following financial restructuring. 2. Investing in the CPST ETF should i buy cpst stock
It aims to match S&P 500 gains up to a cap while protecting against 100% of losses over a one-year period.