CPSM Short Volume
Calamos S&P 500 Structured Alt Protection ETF – May (CPSM) operates in the Financial Services sector, specifically the Asset Management - Global industry, with a market capitalization near $52.9M, listed on AMEX, carrying a beta of 0.07 to the broader market. Calamos Structured Protected ETFs are designed to match the positive price return of the S&P 500 up to a defined cap while protecting against 100% of losses over a one-year period (before fees and expenses). public since 2024-05-01.
Short volume measures the number of shares sold short on a given day as reported by FINRA. Tracking short volume relative to total volume helps identify unusual bearish sentiment or short-squeeze potential.
- Latest Date
- 2026-06-01
- Short Volume
- 1.8K
- Total Volume
- 4.7K
- Short %
- 38.99%
- 30-Day Avg Short %
- 48.00%
Showing 30 days of FINRA short volume data for Calamos S&P 500 Structured Alt Protection ETF – May.
Learn how short volume is reported and how to read the data →
Frequently asked CPSM short volume questions
- What is the daily CPSM short volume?
- As of Jun 1, 2026, Calamos S&P 500 Structured Alt Protection ETF – May (CPSM) short volume is 1.8K shares against 4.7K total reported volume, or 38.99% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is CPSM short volume reported?
- FINRA publishes the Daily Short Sale Volume File for trades reported to FINRA TRFs and the FINRA/Nasdaq ADF on a T+1 basis. The headline figure is the count of shares that printed at the short-sale or short-exempt tick across all reporting venues for the symbol; each exchange separately publishes its own daily short-sale data file.
- What does CPSM short volume tell options traders?
- Daily short-sale flow is one input that helps disambiguate dealer-hedging activity from directional bear flow when the chain shows fresh customer call inventory. It is not a clean MM-only proxy: the headline number mixes directional shorting, options-MM delta-hedging, ETF-creation arbitrage, and convertible-arb hedging. Cross-check against gamma-exposure and OI changes for a cleaner read.