Calamos S&P 500 Structured Alt Protection ETF – September (NYSEARCA:CPST) Sees Large Decrease in Short Interest

Posted by Donna Armstrong on Oct 30th, 2026

Calamos S&P 500 Structured Alt Protection ETF – September (NYSEARCA:CPST – Get Free Report) was the recipient of a significant decline in short interest in the month of October. As of October 15th, there was short interest totaling 5,635 shares, a decline of 51.8% from the September 30th total of 11,693 shares. Currently, 0.4% of the shares of the company are sold short. Based on an average daily volume of 13,294 shares, the days-to-cover ratio is currently 0.4 days.

Calamos S&P 500 Structured Alt Protection ETF – September Trading Down 0.3%

NYSEARCA CPST traded down $0.09 during trading on Friday, reaching $28.15. 680 shares of the company’s stock were exchanged, compared to its average volume of 3,679. Calamos S&P 500 Structured Alt Protection ETF – September has a fifty-two week low of $26.68 and a fifty-two week high of $28.30. The company’s fifty day simple moving average is $28.13 and its 200-day simple moving average is $27.65. The firm has a market capitalization of $42.23 million, a PE ratio of -14.22 and a beta of 0.19.

Hedge Funds Weigh In On Calamos S&P 500 Structured Alt Protection ETF – September

A hedge fund recently raised its position in Calamos S&P 500 Structured Alt Protection ETF – September stock. Burkett Financial Services LLC lifted its position in Calamos S&P 500 Structured Alt Protection ETF – September (NYSEARCA:CPST – Free Report) by 34.4% in the third quarter, according to the company in its most recent 13F filing with the Securities & Exchange Commission. The institutional investor owned 4,598 shares of the company’s stock after buying an additional 1,178 shares during the period. Burkett Financial Services LLC owned about 0.35% of Calamos S&P 500 Structured Alt Protection ETF – September worth $129,000 as of its most recent SEC filing. Institutional investors and hedge funds own 12.12% of the company’s stock.

Calamos S&P 500 Structured Alt Protection ETF – September Company Profile

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The Calamos S&P 500 Structured Alt Protection ETF – September (CPST) is an exchange-traded fund that mostly invests in large cap equity. Calamos S&P 500 Structured Alt Protection ETFTM September (the Fund) seeks to provide investment results that, before taking fees and expenses into account, match the positive price return of the SPDR S&P 500 ETF Trust (Underlying ETF) up to a cap of 7.50% (the Cap). CPST was launched on Sep 3, 2024 and is issued by Calamos.