Go Pro
→ Do this before December or regret it (From Porter & Company) (Ad)tc pixel Free PDFS Stock Alerts

PDF Solutions (PDFS) Short Interest Ratio & Short Volume

PDF Solutions logo
$59.23 -7.65 (-11.44%)
Closing price 03:59 PM Eastern
Extended Trading
$60.75 +1.52 (+2.57%)
As of 04:10 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
Compare

PDF Solutions Short Interest Overview

As of June 15, 2026, PDF Solutions (PDFS) had a short interest of 2.22 million shares sold short, representing 6.26% of the public float. This marks a 28.32% increase in short interest since the prior report. The short interest ratio (days to cover) is 2.6, meaning it would take 2.6 days of the average trading volume of 555,572 shares to cover all short positions.

Current Short Interest
2,220,874 shares
Previous Short Interest
1,730,757 shares
Change Vs. Previous Month
28.32%
Dollar Volume Sold Short
$144.56 million
Short Interest Ratio
2.6 Days to Cover
Last Record Date
June 15, 2026
Outstanding Shares
39,920,000 shares
Short Percent of Float
6.26%
Today's Trading Volume
1,106,476 shares
Average Trading Volume
555,572 shares
Today's Volume Vs. Average
199%
Short Selling PDF Solutions?
A Guide To High-Short-Interest Stocks

Sign up to receive the latest short interest report for PDF Solutions and its competitors with MarketBeat's FREE newsletter.

Get Report
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Charts & View Short Interest History
Short Interest ChartDays to Cover ChartShort Percent of Float Chart

PDFS Short Interest Over Time

PDFS Days to Cover Over Time

PDFS Percentage of Float Shorted Over Time

PDF Solutions Tesla Short Interest History & Recent Changes

Export
Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
6/15/20262,220,874 shares $144.56 million +28.3%6.3%2.58 $65.09
5/29/20261,730,757 shares $84.51 million -1.4%4.9%2.61 $48.83
5/15/20261,755,337 shares $78.46 million -7.8%4.9%1.43 $44.70
4/30/20261,903,669 shares $81.57 million +11.1%5.4%3.31 $42.85
4/15/20261,713,003 shares $71.74 million -8.9%4.8%5.02 $41.88
3/31/20261,880,406 shares $61.51 million +5.2%5.3%5.11 $32.71
3/13/20261,786,751 shares $56.77 million +1.7%5.0%6.22 $31.77
2/27/20261,756,410 shares $59.33 million -2.2%5.0%6.05 $33.78
2/13/20261,796,587 shares $60.53 million +6.7%5.1%5.12 $33.69
1/30/20261,684,324 shares $53.65 million -5.9%4.8%5.79 $31.85
1/15/20261,790,181 shares $62.28 million +8.1%5.1%5.91 $34.79
12/31/20251,655,488 shares $47.23 million +6.5%4.7%7.42 $28.53
12/15/20251,554,868 shares $46.54 million +13.0%4.4%5.28 $29.93
11/28/20251,375,605 shares $37.29 million +1.0%3.9%4.71 $27.11
11/14/20251,361,406 shares $34.18 million +2.4%3.9%4.17 $25.11
10/31/20251,329,816 shares $38.74 million -3.1%3.8%6.48 $29.13
10/15/20251,370,000 shares $37.95 million +3.0%4.4%4.6 $27.70
9/30/20251,330,000 shares $34.34 million +0.8%4.2%4.4 $25.82
9/15/20251,320,000 shares $25.94 million +3.9%4.2%4.3 $19.65
8/31/20251,270,000 shares $25.97 million -8.6%4.0%4.5 $20.45
8/15/20251,390,000 shares $26.90 million +8.6%4.4%5.1 $19.35
7/31/20251,280,000 shares $28.45 million +4.1%4.1%4.8 $22.23
7/15/20251,230,000 shares $27.75 million +23.0%3.9%5.1 $22.56
6/30/20251,000,000 shares $21.38 million +23.0%3.2%4.1 $21.38
6/15/2025813,200 shares $15.76 million +14.3%2.6%3.6 $19.38
5/31/2025711,700 shares $12.55 million +0.8%2.3%3 $17.63
5/15/2025706,000 shares $14.47 million +6.5%2.3%2.9 $20.49
4/30/2025663,000 shares $12.17 million +2.7%2.1%2.6 $18.35
4/15/2025645,900 shares $11.58 million +2.9%2.1%2.5 $17.93
3/31/2025627,500 shares $11.99 million -4.3%2.0%2.5 $19.11
3/15/2025655,700 shares $14.21 million +14.4%2.1%2.8 $21.67
2/28/2025573,300 shares $12.91 million -0.7%1.8%2.7 $22.52
2/15/2025577,200 shares $13.26 million -0.7%1.9%2.9 $22.98
1/31/2025581,300 shares $16.20 million -7.7%1.9%3.2 $27.86
1/15/2025629,800 shares $17.13 million +1.9%2.0%3.7 $27.20
12/31/2024618,300 shares $16.74 million -11.9%2.0%4.1 $27.08
12/15/2024701,600 shares $21.17 million -7.4%2.3%4.7 $30.18
11/30/2024757,500 shares $23.94 million +0.7%2.4%5.1 $31.60
11/15/2024752,600 shares $22.56 million -7.0%2.4%5 $29.98
10/31/2024809,400 shares $22.92 million +11.5%2.6%5.6 $28.32
SPCX Warning - and Worst News for Stocks in 50 Years (Ad)

Goldman Sachs and Morgan Stanley are now predicting what could be the worst news for the U.S. stock market in 50 years - and it has nothing to do with a single stock. According to multiple Wall Street banks, a coming crisis could keep your portfolio in the red for 10 years or longer. Keith Kaplan, CEO of TradeSmith, is sharing what you can do to protect your wealth before it hits.tc pixel

Learn how to prepare your portfolio for what's coming next
10/15/2024726,200 shares $21.50 million -4.3%2.3%4.7 $29.60
9/30/2024759,000 shares $24.05 million +5.9%2.5%4.7 $31.68
9/15/2024717,000 shares $21.04 million +3.2%2.3%4.4 $29.35
8/31/2024695,100 shares $21.93 million +10.1%2.2%4.2 $31.55
8/15/2024631,100 shares $20.85 million +5.3%2.0%4 $33.03
7/31/2024599,200 shares $21.03 million +11.7%2.0%3.6 $35.09
7/15/2024536,400 shares $20.63 million +1.7%1.8%3.6 $38.46
6/30/2024527,500 shares $19.19 million +7.2%1.7%3.7 $36.38
6/15/2024492,000 shares $16.55 million -10.8%1.6%3.4 $33.63
5/31/2024551,700 shares $19.32 million -9.6%1.8%3.7 $35.02
5/15/2024610,200 shares $20.98 million -14.8%2.0%3.9 $34.39
4/30/2024716,200 shares $21.54 million +13.1%2.3%4 $30.08
4/15/2024633,200 shares $20.03 million -7.6%2.1%3.6 $31.63
3/31/2024685,200 shares $23.07 million +0.4%2.2%3.7 $33.67
3/15/2024682,700 shares $22.23 million -4.1%2.2%3.5 $32.56
2/29/2024712,100 shares $24.20 million +15.0%2.3%3.6 $33.99
2/15/2024619,500 shares $21.66 million -11.5%2.0%3.1 $34.96
1/31/2024699,900 shares $21.84 million +39.7%2.3%3.2 $31.20
1/15/2024501,000 shares $15.13 million -22.7%1.6%2.1 $30.20
12/31/2023648,500 shares $20.84 million -9.9%2.1%2.7 $32.14
12/15/2023720,100 shares $21.98 million +8.7%2.4%2.9 $30.52
11/30/2023662,500 shares $19.87 million +19.8%2.2%2.7 $29.99
11/15/2023553,200 shares $17.03 million +34.1%1.8%2.4 $30.79
10/31/2023412,600 shares $10.95 million +31.1%1.4%1.9 $26.53
10/15/2023314,800 shares $9.51 million -9.8%1.0%1.7 $30.21
9/30/2023349,000 shares $11.31 million +24.7%1.2%2.1 $32.40
9/15/2023279,900 shares $8.86 million -6.1%0.9%1.7 $31.67
8/31/2023298,200 shares $10.84 million +45.4%1.0%1.9 $36.34
8/15/2023205,100 shares $7.19 million +3.1%0.7%1.2 $35.07
7/31/2023198,900 shares $9.15 million -9.6%0.7%1.1 $45.99
7/15/2023220,000 shares $10.01 million -43.7%0.7%1.3 $45.49
6/30/2023390,800 shares $17.63 million -23.7%1.3%2.2 $45.10
6/15/2023512,200 shares $22.75 million +7.3%1.7%2.8 $44.42
5/31/2023477,200 shares $20.16 million -9.2%1.6%2.4 $42.25
5/15/2023525,500 shares $18.60 million -9.2%1.8%2.7 $35.40
4/30/2023578,800 shares $20.87 million +3.0%1.9%3.1 $36.05
4/15/2023562,000 shares $23.20 million +16.9%1.9%3.1 $41.28
3/31/2023480,600 shares $20.38 million -0.1%1.6%2.6 $42.40
3/15/2023481,200 shares $18.26 million +19.1%1.6%3 $37.94
2/28/2023404,200 shares $15.13 million -0.8%1.4%2.9 $37.44
2/15/2023407,400 shares $13.71 million -3.9%1.4%3.2 $33.65
1/31/2023423,900 shares $13.47 million +4.9%1.4%3.5 $31.78
1/15/2023404,100 shares $12.36 million +3.1%1.4%3.5 $30.59
12/30/2022392,000 shares $11.18 million +4.1%1.3%3.3 $28.52
12/15/2022376,400 shares $11.05 million +4.3%1.3%2.9 $29.35
11/30/2022361,000 shares $11.32 million -4.9%1.2%2.9 $31.37
11/15/2022379,600 shares $11.37 million -22.9%1.3%3.1 $29.95
10/31/2022492,500 shares $11.61 million -9.9%1.7%4.3 $23.58
10/15/2022546,500 shares $11.72 million +12.6%1.9%4.6 $21.44
9/30/2022485,500 shares $11.91 million -5.0%1.7%3.7 $24.53
SPCX Warning - and Worst News for Stocks in 50 Years (Ad)

Goldman Sachs and Morgan Stanley are now predicting what could be the worst news for the U.S. stock market in 50 years - and it has nothing to do with a single stock. According to multiple Wall Street banks, a coming crisis could keep your portfolio in the red for 10 years or longer. Keith Kaplan, CEO of TradeSmith, is sharing what you can do to protect your wealth before it hits.tc pixel

Learn how to prepare your portfolio for what's coming next
9/15/2022511,100 shares $12.76 million -12.3%1.8%3.5 $24.96
8/31/2022583,000 shares $15.38 million -4.1%2.0%4 $26.38
8/15/2022607,900 shares $17.70 million -2.7%2.1%4.3 $29.11
7/31/2022624,900 shares $16.86 million +0.9%2.2%4.3 $26.98
7/15/2022619,300 shares $14.02 million -4.7%2.1%4.3 $22.64
6/30/2022650,000 shares $13.98 million +11.5%2.2%4.4 $21.51
6/15/2022583,000 shares $12.03 million +9.7%2.0%4.2 $20.63
5/31/2022531,700 shares $12.71 million -2.7%1.8%4.3 $23.90
5/15/2022546,700 shares $13.10 million +0.6%1.9%4.1 $23.96
4/30/2022543,500 shares $12.64 million -3.6%1.8%3.8 $23.25
4/15/2022563,700 shares $13.19 million -2.5%1.7%3.7 $23.40
3/31/2022578,200 shares $16.11 million -3.9%1.8%4 $27.87
3/15/2022601,600 shares $15.42 million +12.2%1.8%4.5 $25.63
2/28/2022536,300 shares $14.67 million +2.2%1.6%3.9 $27.36
2/15/2022524,800 shares $15.99 million +10.8%1.6%3.9 $30.47
1/31/2022473,800 shares $14.09 million +20.0%1.5%3.3 $29.73
1/15/2022395,000 shares $11.10 million +4.8%1.2%3 $28.11
12/31/2021376,900 shares $11.98 million +8.5%1.3%3.2 $31.79
12/15/2021347,500 shares $10.57 million -1.6%1.2%2.9 $30.41
11/30/2021353,000 shares $10.57 million -25.8%1.2%3 $29.93
11/15/2021476,000 shares $15.62 million -27.2%1.6%4.1 $32.82
10/29/2021653,800 shares $15.38 million -8.4%2.2%7.1 $23.53
10/15/2021713,500 shares $16.37 million -1.4%2.4%8.6 $22.95
9/30/2021723,900 shares $16.68 million +2.0%2.5%8.2 $23.04
9/15/2021709,500 shares $16.15 million -7.4%2.4%6.6 $22.76
8/31/2021766,000 shares $17.25 million -15.4%2.6%6.9 $22.52
8/13/2021905,900 shares $18.99 million -5.3%3.1%6.4 $20.96
7/30/2021956,200 shares $17.89 million -2.4%3.3%6.8 $18.71
7/15/2021979,500 shares $17.45 million -1.5%3.4%6.3 $17.82

PDFS Short Interest - Frequently Asked Questions

Short interest is the volume of PDF Solutions shares that have been sold short but have not yet been covered or closed out. As of June 15th, investors have sold 2,220,874 shares of PDFS short. 6.26% of PDF Solutions' shares are currently sold short. Learn More on PDF Solutions' 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. PDFS shares currently have a short interest ratio of 2.6. Learn More on PDF Solutions'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. 6.26% of PDF Solutions' floating shares are currently sold short.

PDF Solutions saw a increase in short interest during the month of June. As of June 15th, there was short interest totaling 2,220,874 shares, an increase of 28.3% from the previous total of 1,730,757 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.

6.26% of PDF Solutions' shares are currently sold short. Here is how the short interest of companies in the sector of "computer and technology" compare to PDF Solutions: Advanced Energy Industries, Inc. (6.97%), Applied Materials, Inc. (2.77%), Amkor Technology, Inc. (5.00%), Cohu, Inc. (17.71%), Entegris, Inc. (7.76%), KLA Corporation (36.63%), Lam Research Corporation (2.40%), MKS Inc. (6.83%), Ultra Clean Holdings, Inc. (7.96%), Onto Innovation Inc. (5.20%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($77.25 billion), Invesco QQQ ($51.70 billion), iShares Russell 2000 ETF ($25.75 billion), Sandisk Corporation ($23.00 billion), Western Digital Corporation ($17.29 billion), Nebius Group N.V. ($13.25 billion), SPDR S&P Biotech ETF ($10.78 billion), KLA Corporation ($10.45 billion), Salesforce Inc. ($9.71 billion), and VanEck Semiconductor ETF ($9.01 billion). View all of the most shorted stocks.

Short selling PDFS is an investing strategy that aims to generate trading profit from PDF Solutions as its price is falling. PDFS shares are trading down $3.76 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 PDF Solutions 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 PDFS, 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 PDFS, twice per month. The most recent reporting period available is June, 15 2026.

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

  • 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.


Related Companies
Short Interest Tools

This page (NASDAQ:PDFS) was last updated on 6/25/2026 by MarketBeat.com Staff.
From Our Partners
Do NOT Buy SpaceX – Do This Instead
SpaceX just went public - and Whitney Tilson, Harvard MBA and 30-year Wall Street veteran, says buying in coul...
Stansberry Research | Sponsoredtc pixel
Trump's gold order: the announcement they won't put on the front page
On August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no deb...
Reagan Gold Group | Sponsoredtc pixel
PH: Do THESE 4 things to your bank account now …
In a few short months, the US government could gain unprecedented powers over personal bank accounts - includi...
Weiss Ratings | Sponsoredtc pixel
SPCX Warning - and Worst News for Stocks in 50 Years
Goldman Sachs and Morgan Stanley are now predicting what could be the worst news for the U.S. stock market in ...
TradeSmith | Sponsoredtc pixel
Gold Is About to Do Something It Hasn’t in 90 Years
The U.S. Treasury still carries America's gold reserves at $42 per ounce — a price set generations ago. Buried...
US Gold Bureau | Sponsoredtc pixel
Your book is inside
The "Sucker's Bet" Most New Options Traders Fall For Most people who try options lose money the same way. ...
Profits Run | Sponsoredtc pixel
Forget the million-dollar nest egg — you only need THIS much
Nearly 2 in 3 Americans fear running out of money more than death - and chasing a $1.5 million nest egg isn't ...
Investors Alley | Sponsoredtc pixel
They proved it worked in '76. Then buried it.
In 1976, Chevron, Unocal, and Texaco each confirmed the same energy technology worked - no fuel costs, no carb...
Behind the Markets | Sponsoredtc pixel