CPSJ Short Volume
Calamos S&P 500 Structured Alt Protection ETF – July (CPSJ) operates in the Financial Services sector, specifically the Asset Management - Global industry, with a market capitalization near $41.6M, listed on AMEX, carrying a beta of 0.23 to the broader market. Calamos's Structured Protected ETFs are engineered to give investors exposure to the S&P 500's positive price appreciation, up to a predetermined maximum, while simultaneously safeguarding against 100% of potential losses over a one-year period. public since 2024-07-01.
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
- 2026-08-28
- Short Volume
- 290
- Total Volume
- 356
- Short %
- 81.46%
- 30-Day Avg Short %
- 63.16%
Showing 30 days of FINRA short volume data for Calamos S&P 500 Structured Alt Protection ETF – July.
Learn how short volume is reported and how to read the data →
Frequently asked CPSJ short volume questions
- What is the daily CPSJ short volume?
- As of Aug 28, 2026, Calamos S&P 500 Structured Alt Protection ETF – July (CPSJ) short volume is 290 shares against 356 total reported volume, or 81.46% short-side. Short volume measures shares sold short during the day; it is flow, not inventory.
- How is CPSJ 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 CPSJ 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.