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Innovator Power Buffer Step-Up Strategy ETF (PSTP) Short Interest Ratio & Short Volume

$37.51 +0.02 (+0.05%)
As of 08/13/2026 04:10 PM Eastern

Innovator Power Buffer Step-Up Strategy ETF Short Interest Overview

As of July 31, 2026, Innovator Power Buffer Step-Up Strategy ETF (PSTP) had a short interest of 19,277 shares sold short, representing 0.27% of the public float. This marks a 10.93% increase in short interest since the prior report. The short interest ratio (days to cover) is 3.7, meaning it would take 3.7 days of the average trading volume of 11,046 shares to cover all short positions.

Current Short Interest
19,277 shares
Previous Short Interest
17,377 shares
Change Vs. Previous Month
10.93%
Dollar Volume Sold Short
$712.09 thousand
Short Interest Ratio
3.7 Days to Cover
Last Record Date
July 31, 2026
Outstanding Shares
7,200,000 shares
Short Percent of Float
0.27%
Today's Trading Volume
7,842 shares
Average Trading Volume
11,046 shares
Today's Volume Vs. Average
71%
Short Selling Innovator Power Buffer Step-Up Strategy ETF?
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PSTP Short Interest Over Time

PSTP Days to Cover Over Time

PSTP Percentage of Float Shorted Over Time

Innovator Power Buffer Step-Up Strategy ETF 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
7/31/202619,277 shares $712.09 thousand +10.9%0.3%3.71 $36.94
7/15/202617,377 shares $642.60 thousand +394.2%0.5%1.65 $36.98
6/30/20263,516 shares $129.32 thousand -81.5%0.1%0.34 $36.78
6/15/202619,033 shares $700.03 thousand +96.5%0.5%3.38 $36.78
5/29/20269,684 shares $356.66 thousand +104.7%0.3%1.03 $36.83
5/15/20264,732 shares $172.20 thousand +29.5%0.1%0.52 $36.39
4/30/20263,654 shares $131.73 thousand +180.2%0.1%0.52 $36.05
4/15/20261,304 shares $46.57 thousand -1.0%0.0%0.06 $35.71
3/31/20261,317 shares $45.40 thousand -66.6%0.0%0.19 $34.47
3/13/20263,940 shares $136.92 thousand -68.2%0.1%0.41 $34.75
2/27/202612,379 shares $439.08 thousand +56.3%0.3%1.87 $35.47
2/13/20267,918 shares $279.58 thousand +58.6%0.2%0.92 $35.31
1/30/20264,993 shares $177.60 thousand -76.8%0.1%0.12 $35.57
1/15/202621,508 shares $766.55 thousand -18.9%0.6%1.85 $35.64
12/31/202526,534 shares $937.98 thousand +3.3%0.7%3.37 $35.35
12/15/202525,691 shares $903.04 thousand +41.2%0.7%3.32 $35.15
11/28/202518,196 shares $639.23 thousand -10.0%0.5%2.19 $35.13
9/15/202540,300 shares $1.40 million +15.8%N/A3.6 $34.63
8/31/202534,800 shares $1.19 million -11.5%1.0%3.3 $34.25
8/15/202539,300 shares $1.34 million +46.6%N/A3.7 $34.17
7/31/202526,800 shares $905.84 thousand -29.8%0.8%2.4 $33.80
7/15/202538,200 shares $1.28 million -0.5%N/A3.7 $33.57
6/30/202538,400 shares $1.28 million +4.6%1.1%3.5 $33.37
6/15/202536,700 shares $1.20 million +42.8%1.1%3.9 $32.69
5/31/202525,700 shares $833.97 thousand -26.2%0.8%2.8 $32.45
5/15/202534,800 shares $1.13 million +94.4%N/A3.5 $32.42
4/30/202517,900 shares $560.63 thousand -28.1%N/A1.9 $31.32
4/15/202524,900 shares $763.68 thousand -2.7%N/A2.5 $30.67
3/14/202529,200 shares $920.38 thousand +32.1%N/A2.9 $31.52
2/14/202546,000 shares $1.51 million -4.2%N/A4.6 $32.74
1/31/202548,000 shares $1.56 million +49.1%N/A4.7 $32.52
1/15/202532,200 shares $1.04 million -24.8%N/A3.2 $32.26

PSTP Short Interest - Frequently Asked Questions

Short interest is the volume of Innovator Power Buffer Step-Up Strategy ETF shares that have been sold short but have not yet been closed out or covered. As of July 31st, investors have sold 19,277 shares of PSTP short. 0.27% of Innovator Power Buffer Step-Up Strategy ETF's shares are currently sold short. Learn More on Innovator Power Buffer Step-Up Strategy ETF's current short interest.

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. PSTP shares currently have a short interest ratio of 3.7. Learn More on Innovator Power Buffer Step-Up Strategy ETF's short interest ratio.

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. 0.27% of Innovator Power Buffer Step-Up Strategy ETF's floating shares are currently sold short.

Innovator Power Buffer Step-Up Strategy ETF saw a increase in short interest in the month of July. As of July 31st, there was short interest totaling 19,277 shares, an increase of 10.9% from the previous total of 17,377 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.

0.27% of Innovator Power Buffer Step-Up Strategy ETF's shares are currently sold short. Here is how the short interest of companies compare to Innovator Power Buffer Step-Up Strategy ETF: Federated Hermes MDT Large Cap Value ETF (0.39%), Federated Hermes MDT Large Cap Core ETF (0.52%), Invesco S&P 500 Value with Momentum ETF (0.21%), Stratified LargeCap Index ETF (1.07%), ALPS Level Four Large Cap Growth Active ETF (0.13%), Innovator Equity Managed 100 Buffer ETF (2.22%), Parametric Hedged Equity ETF (0.17%), BNY Mellon Concentrated Growth ETF (0.00%), AdvisorShares Dorsey Wright FSM US Core ETF (0.02%), KraneShares Hedgeye Hedged Equity Index ETF (0.88%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($70.50 billion), Invesco QQQ ($50.36 billion), iShares Russell 2000 ETF ($21.20 billion), Western Digital Corporation ($13.40 billion), SPDR S&P Biotech ETF ($11.59 billion), Nebius Group N.V. ($11.46 billion), iShares 20+ Year Treasury Bond ETF ($7.84 billion), iShares iBoxx $ High Yield Corporate Bond ETF ($7.51 billion), iShares Semiconductor ETF ($6.37 billion), and Financial Select Sector SPDR Fund ($6.34 billion). View all of the most shorted stocks.

Short selling PSTP is an investing strategy that aims to generate trading profit from Innovator Power Buffer Step-Up Strategy ETF as its price is falling. PSTP shares are trading up $0.02 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.

A short squeeze for Innovator Power Buffer Step-Up Strategy ETF occurs when it has a large amount of short interest and its stock increases in price. This forces short sellers to cover their short interest positions by buying actual shares of PSTP, which in turn drives the price of the stock up even further.

Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including PSTP, twice per month. The most recent reporting period available is July, 31 2026.

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

  • 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.



Short interest data for NYSEARCA:PSTP is sourced from the Financial Industry Regulatory Authority (FINRA), with the most recent report published on 8/11/2026. FINRA publishes updated short interest twice a month.
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