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Calamos S&P 500 Structured Alt Protection ETF - June (CPSU) Short Interest Ratio & Short Volume

$27.59 +0.01 (+0.04%)
As of 04:10 PM Eastern

Calamos S&P 500 Structured Alt Protection ETF - June Short Interest Overview

As of April 15, 2026, Calamos S&P 500 Structured Alt Protection ETF - June (CPSU) had a short interest of 6,550 shares sold short, representing 1.31% of the public float. This marks a -8.43% decrease in short interest since the prior report. The short interest ratio (days to cover) is 14.4, meaning it would take 14.4 days of the average trading volume of 787 shares to cover all short positions.

Current Short Interest
6,550 shares
Previous Short Interest
7,153 shares
Change Vs. Previous Month
-8.43%
Dollar Volume Sold Short
$180.13 thousand
Short Interest Ratio
14.4 Days to Cover
Last Record Date
April 15, 2026
Outstanding Shares
500,000 shares
Short Percent of Float
1.31%
Today's Trading Volume
1,332 shares
Average Trading Volume
787 shares
Today's Volume Vs. Average
169%
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Skip Charts & View Short Interest History

CPSU Short Interest Over Time

CPSU Days to Cover Over Time

CPSU Percentage of Float Shorted Over Time

Calamos S&P 500 Structured Alt Protection ETF - June Tesla Short Interest History & Recent Changes

Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
4/15/20266,550 shares $180.13 thousand -8.4%1.3%14.36 $27.50
3/31/20267,153 shares $194.35 thousand -9.9%1.4%56.77 $27.17
3/13/20267,941 shares $215.68 thousand -60.6%1.6%5.38 $27.16
2/27/202620,149 shares $549.26 thousand -17.0%4.0%23.68 $27.26
2/13/202624,273 shares $659.98 thousand +41.3%4.9%11.12 $27.19
1/30/202617,173 shares $466.76 thousand +19.5%3.4%85.87 $27.18
1/15/202614,369 shares $390.12 thousand -10.5%3.6%31.1 $27.15
12/31/202516,053 shares $434.72 thousand +0.8%4.0%119.8 $27.08
12/15/202515,929 shares $430.40 thousand -11.0%4.0%17.88 $27.02
11/28/202517,897 shares $481.79 thousand -18.3%4.5%31.07 $26.92
11/14/202521,910 shares $587.63 thousand +0.5%5.5%999.99 $26.82
10/31/202521,812 shares $585.22 thousand -4.7%5.5%127.56 $26.83
10/15/202522,900 shares $612.80 thousand +7.0%5.7%25.4 $26.76
9/30/202521,400 shares $571.81 thousand No ChangeN/A21.4 $26.72
9/15/202521,400 shares $570.95 thousand +10.3%N/A2.4 $26.68
8/31/202519,400 shares $515.26 thousand No Change4.3%1.1 $26.56

CPSU Short Interest - Frequently Asked Questions

What is Calamos S&P 500 Structured Alt Protection ETF - June's current short interest?

Short interest is the volume of Calamos S&P 500 Structured Alt Protection ETF - June shares that have been sold short but have not yet been closed out or covered. As of April 15th, traders have sold 6,550 shares of CPSU short. 1.31% of Calamos S&P 500 Structured Alt Protection ETF - June's shares are currently sold short. Learn More on Calamos S&P 500 Structured Alt Protection ETF - June's current short interest.

What is a good short interest ratio for Calamos S&P 500 Structured Alt Protection ETF - June?

The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. CPSU shares currently have a short interest ratio of 14.4. Learn More on Calamos S&P 500 Structured Alt Protection ETF - June's short interest ratio.

What is a good short interest percentage for Calamos S&P 500 Structured Alt Protection ETF - June?

Companies that have a short interest as a percentage of float below 10% indicates positive investor sentiment and few short sellers. Stocks with a short interest percentage above 10% is considered high, suggesting some investors are pessimistic about the stock. Companies with a short interest percentage of 20% or more indicates widespread negative sentiment. 1.31% of Calamos S&P 500 Structured Alt Protection ETF - June's floating shares are currently sold short.

Is Calamos S&P 500 Structured Alt Protection ETF - June's short interest increasing or decreasing?

Calamos S&P 500 Structured Alt Protection ETF - June saw a drop in short interest during the month of April. As of April 15th, there was short interest totaling 6,550 shares, a drop of 8.4% from the previous total of 7,153 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment.

How does Calamos S&P 500 Structured Alt Protection ETF - June's short interest compare to its competitors?

1.31% of Calamos S&P 500 Structured Alt Protection ETF - June's shares are currently sold short. Here is how the short interest of companies compare to Calamos S&P 500 Structured Alt Protection ETF - June: Tradr 2X Long SPY Quarterly ETF (0.29%), Mkam Etf (0.35%), Neuberger Berman Growth ETF (0.01%), YieldMax Short N100 Option Income Strategy ETF (1.66%), KraneShares China Alpha Index ETF (0.42%), QRAFT AI-Enhanced U.S. Large Cap ETF (0.04%), ProShares Nasdaq-100 Dorsey Wright Momentum ETF (7.55%), Pacer Nasdaq 100 Top 50 Cash Cows Growth Leaders ETF (0.57%), Tradr 2X Long Innovation 100 Quarterly ETF (2.89%), iShares Large Cap Growth Active ETF (0.60%),

Which stocks are the most shorted right now?

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($87.50 billion), Invesco QQQ ($42.26 billion), iShares Russell 2000 ETF ($24.79 billion), Salesforce Inc. ($13.16 billion), SPDR S&P Biotech ETF ($10.01 billion), Western Digital Corporation ($9.77 billion), Sandisk Corporation ($8.69 billion), iShares 20+ Year Treasury Bond ETF ($8.06 billion), CoreWeave Inc. ($7.67 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($7.64 billion). View all of the most shorted stocks.

What does it mean to sell short Calamos S&P 500 Structured Alt Protection ETF - June stock?

Short selling CPSU is an investing strategy that aims to generate trading profit from Calamos S&P 500 Structured Alt Protection ETF - June as its price is falling. CPSU shares are trading down $0.01 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit.

How does a short squeeze work against Calamos S&P 500 Structured Alt Protection ETF - June?

A short squeeze for Calamos S&P 500 Structured Alt Protection ETF - June occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of CPSU, which in turn drives the price of the stock up even further.

How often is Calamos S&P 500 Structured Alt Protection ETF - June's short interest reported?

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including CPSU, twice per month. The most recent reporting period available is April, 15 2026.

What do CPSU's short interest metrics mean?

Understanding short interest metrics can help you assess how traders are positioning around a stock like CPSU:

  • Shares Sold Short: The total number of shares that have been sold by short sellers but have not yet been covered or closed out. A high number may indicate bearish sentiment.
  • Short Float: The percentage of a company’s publicly available shares (or "float") that are sold short. A higher short float suggests a greater portion of the stock is being bet against.
  • Days to Cover (Short Interest Ratio): This estimates how many days it would take short sellers to cover their positions, based on average daily trading volume. Higher values can signal potential for a short squeeze if buying pressure increases.

These metrics are often used by traders to gauge sentiment, volatility risk, and the potential for price movements based on short covering activity.




This page (NYSEARCA:CPSU) was last updated on 5/5/2026 by MarketBeat.com Staff.
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