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Syndax Pharmaceuticals (SNDX) Short Interest Ratio & Short Volume

Syndax Pharmaceuticals logo
$19.04 +0.49 (+2.64%)
As of 04:00 PM Eastern
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Syndax Pharmaceuticals Short Interest Overview

As of May 29, 2026, Syndax Pharmaceuticals (SNDX) had a short interest of 16.64 million shares sold short, representing 19.58% of the public float. This marks a -23.38% decrease in short interest since the prior report. The short interest ratio (days to cover) is 16.0, meaning it would take 16.0 days of the average trading volume of 1.53 million shares to cover all short positions.

Current Short Interest
16,637,071 shares
Previous Short Interest
21,712,664 shares
Change Vs. Previous Month
-23.38%
Dollar Volume Sold Short
$325.92 million
Short Interest Ratio
16.0 Days to Cover
Last Record Date
May 29, 2026
Outstanding Shares
88,610,000 shares
Short Percent of Float
19.58%
Today's Trading Volume
1,900,017 shares
Average Trading Volume
1,528,265 shares
Today's Volume Vs. Average
124%
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Short Interest ChartDays to Cover ChartShort Percent of Float Chart

SNDX Short Interest Over Time

SNDX Days to Cover Over Time

SNDX Percentage of Float Shorted Over Time

Syndax Pharmaceuticals Tesla Short Interest History & Recent Changes

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Report DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date
5/29/202616,637,071 shares $325.92 million -23.4%19.6%16.02 $19.59
5/15/202621,712,664 shares $439.25 million +9.1%25.6%10.54 $20.23
4/30/202619,911,327 shares $426.70 million -5.0%23.4%12.66 $21.43
4/15/202620,968,088 shares $510.15 million +1.3%24.8%15.24 $24.33
3/31/202620,695,810 shares $483.45 million +1.0%24.5%13.63 $23.36
3/13/202620,485,613 shares $481.41 million -6.0%24.2%13.48 $23.50
2/27/202621,798,656 shares $473.25 million -1.4%25.8%19.86 $21.71
2/13/202622,117,950 shares $452.98 million +4.6%26.5%17.85 $20.48
1/30/202621,147,220 shares $429.50 million -5.4%25.4%17.22 $20.31
1/15/202622,344,466 shares $461.86 million -1.0%26.8%16.06 $20.67
12/31/202522,569,116 shares $474.18 million -1.1%27.1%18.21 $21.01
12/15/202522,826,193 shares $476.61 million -9.5%27.4%12.48 $20.88
11/28/202525,221,608 shares $507.46 million -1.6%30.3%10.65 $20.12
11/14/202525,622,767 shares $425.85 million +1.1%31.0%7.59 $16.62
10/31/202525,344,944 shares $347.23 million +15.1%30.7%5.92 $13.70
10/15/202522,020,000 shares $331.18 million -3.5%26.7%8.4 $15.04
9/30/202522,810,000 shares $351.05 million -1.4%N/A10.2 $15.39
9/15/202523,140,000 shares $366.54 million +10.6%N/A10.3 $15.84
8/31/202520,920,000 shares $341.62 million +1.5%25.3%9.6 $16.33
8/15/202520,610,000 shares $324.40 million -13.8%N/A9.4 $15.74
7/31/202523,900,000 shares $237.09 million +0.9%28.9%10.4 $9.92
7/15/202523,690,000 shares $218.18 million -0.8%N/A10.9 $9.21
6/30/202523,870,000 shares $223.42 million +8.5%28.9%10.4 $9.36
6/15/202522,000,000 shares $225.50 million -4.9%26.7%10 $10.25
5/31/202523,140,000 shares $244.59 million +6.5%28.3%10.7 $10.57
5/15/202521,730,000 shares $194.48 million +0.3%26.5%9.4 $8.95
4/30/202521,660,000 shares $306.49 million +2.3%N/A9.8 $14.15
4/15/202521,170,000 shares $239.86 million +9.4%25.9%9.8 $11.33
3/31/202519,360,000 shares $237.74 million +2.9%23.7%9.1 $12.28
3/15/202518,820,000 shares $243.72 million -2.0%23.0%8 $12.95
2/28/202519,200,000 shares $300.29 million -10.9%23.5%7.7 $15.64
2/15/202521,550,000 shares $321.53 million -2.9%26.3%9.1 $14.92
1/31/202522,200,000 shares $314.57 million -0.8%N/A8.8 $14.17
1/15/202522,380,000 shares $286.46 million +5.0%N/A10.2 $12.80
12/31/202421,310,000 shares $281.72 million +30.3%N/A10.7 $13.22
12/15/202416,360,000 shares $227.89 million +13.6%N/A9.1 $13.93
11/30/202414,400,000 shares $240.77 million +35.9%N/A9.7 $16.72
11/15/202410,600,000 shares $167.80 million -0.6%N/A7.7 $15.83
10/31/202410,660,000 shares $201.05 million +1.4%N/A11.2 $18.86
10/15/202410,510,000 shares $207.57 million +4.3%N/A10.7 $19.75
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9/30/202410,080,000 shares $194.04 million +4.2%N/A10 $19.25
9/15/20249,670,000 shares $184.89 million +1.9%N/A9.2 $19.12
8/31/20249,490,000 shares $195.02 million +0.6%N/A9 $20.55
8/15/20249,430,000 shares $188.22 million +9.8%N/A8.8 $19.96
7/31/20248,590,000 shares $194.99 million +0.8%N/A7.8 $22.70
7/15/20248,520,000 shares $207.72 million +2.2%N/A8.3 $24.38
6/30/20248,340,000 shares $171.22 million -15.9%N/A8.1 $20.53
6/15/20249,920,000 shares $199.49 million +2.8%N/A9.8 $20.11
5/31/20249,650,000 shares $185.96 million -3.8%N/A9.1 $19.27
5/15/202410,030,000 shares $220.06 million -0.8%N/A9.6 $21.94
4/30/202410,110,000 shares $213.62 million +5.3%N/A9.4 $21.13
4/15/20249,600,000 shares $207.55 million -0.2%N/A8.3 $21.62
3/31/20249,620,000 shares $228.96 million +15.5%N/A8.2 $23.80
3/15/20248,330,000 shares $195.92 million -8.4%N/A6.9 $23.52
2/29/20249,090,000 shares $213.07 million +5.7%N/A6.1 $23.44
2/15/20248,600,000 shares $194.96 million -1.0%N/A5.8 $22.67
1/31/20248,690,000 shares $178.06 million No ChangeN/A5.8 $20.49
1/15/20248,690,000 shares $193.27 million +3.7%N/A5.4 $22.24
12/31/20238,380,000 shares $181.09 million -19.0%N/A4.7 $21.61
12/15/202310,340,000 shares $214.76 million +1.1%N/A4.8 $20.77
11/30/202310,230,000 shares $170.28 million -3.7%N/A5.4 $16.65
11/15/202310,620,000 shares $159.94 million +6.4%N/A6.2 $15.06
10/31/20239,980,000 shares $140.52 million +17.4%N/A6.1 $14.08
10/15/20238,500,000 shares $101.92 million +12.1%N/A5.7 $11.99
9/30/20237,580,000 shares $110.06 million -0.1%N/A6 $14.52
9/15/20237,590,000 shares $131.76 million +9.1%N/A9.8 $17.36
8/31/20236,960,000 shares $128.83 million -2.8%N/A8.8 $18.51
8/15/20237,160,000 shares $132.03 million +7.7%N/A8.4 $18.44
7/31/20236,650,000 shares $141.78 million +12.1%N/A7.4 $21.32
7/15/20235,930,000 shares $125.42 million +3.3%N/A6.8 $21.15
6/30/20235,740,000 shares $120.14 million +2.5%N/A6.5 $20.93
6/15/20235,600,000 shares $119.45 million -10.0%N/A5.9 $21.33
5/31/20236,220,000 shares $124.21 million -2.7%N/A6.7 $19.97
5/15/20236,390,000 shares $135.15 million -2.0%N/A7.4 $21.15
4/30/20236,520,000 shares $133.99 million -5.2%N/A7.9 $20.55
4/15/20236,880,000 shares $137.60 million -9.8%N/A8.6 $20.00
3/31/20237,630,000 shares $161.15 million +12.4%N/A9.5 $21.12
3/15/20236,790,000 shares $151.42 million +13.4%N/A8.9 $22.30
2/28/20235,990,000 shares $151.85 million +8.5%N/A7 $25.35
2/15/20235,520,000 shares $143.46 million +0.6%N/A6.8 $25.99
1/31/20235,490,000 shares $157.56 million +0.6%N/A6.5 $28.70
1/15/20235,460,000 shares $143.65 million -14.3%N/A6.4 $26.31
12/30/20226,370,000 shares $162.12 million +22.5%N/A7.3 $25.45
12/15/20225,200,000 shares $125.84 million +17.7%N/A6.1 $24.20
11/30/20224,420,000 shares $105.90 million +5.7%N/A5.8 $23.96
11/15/20224,180,000 shares $91.46 million +2.7%N/A6 $21.88
10/31/20224,070,000 shares $93.45 million -9.2%N/A5.9 $22.96
10/15/20224,480,000 shares $105.41 million +0.9%9.4%6.7 $23.53
9/30/20224,440,000 shares $106.69 million -3.5%9.3%6.7 $24.03
9/15/20224,600,000 shares $113.02 million No Change9.6%7.2 $24.57
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8/31/20224,600,000 shares $108.61 million +0.4%9.7%7 $23.61
8/15/20224,580,000 shares $113.31 million +5.1%9.6%7.1 $24.74
7/31/20224,360,000 shares $88.81 million +2.6%9.2%6.6 $20.37
7/15/20224,250,000 shares $80.92 million -24.8%9.2%6.8 $19.04
6/30/20225,650,000 shares $108.71 million -4.2%12.3%9.6 $19.24
6/15/20225,900,000 shares $95.76 million -0.7%12.8%10 $16.23
5/31/20225,940,000 shares $98.01 million -6.5%13.0%10.4 $16.50
5/15/20226,350,000 shares $89.60 million -1.6%13.9%10.9 $14.11
4/30/20226,450,000 shares $108.17 million +5.9%14.3%11.5 $16.77
4/15/20226,090,000 shares $110.47 million +9.1%13.5%11.1 $18.14
3/31/20225,580,000 shares $96.98 million -9.6%12.3%10.1 $17.38
3/15/20226,170,000 shares $99.21 million +18.9%13.8%11.6 $16.08
2/28/20225,190,000 shares $80.91 million +5.3%12.2%8.7 $15.59
2/15/20224,930,000 shares $81.69 million +17.1%11.6%8.7 $16.57
1/31/20224,210,000 shares $68.79 million +25.3%10.0%7.7 $16.34
1/15/20223,360,000 shares $60.78 million No Change7.5%5.8 $18.09
12/31/20213,360,000 shares $73.55 million -5.4%N/A6 $21.89
12/15/20213,550,000 shares $67.34 million +12.0%8.0%5.8 $18.97
11/30/20213,170,000 shares $50.62 million -6.8%7.4%5.8 $15.97
11/15/20213,400,000 shares $60.83 million -45.8%8.0%6.3 $17.89
10/29/20216,270,000 shares $121.95 million -1.0%14.6%11.6 $19.45
10/15/20216,330,000 shares $117.67 million -9.1%14.7%13.1 $18.59
9/30/20216,960,000 shares $133.01 million -11.0%16.2%13.8 $19.11
9/15/20217,820,000 shares $151.40 million -5.2%18.2%15.7 $19.36
8/31/20218,250,000 shares $144.29 million +2.7%19.2%17.9 $17.49
8/13/20218,030,000 shares $127.76 million -2.0%18.8%17.5 $15.91
7/30/20218,190,000 shares $119.41 million -5.2%19.4%16.6 $14.58
7/15/20218,640,000 shares $133.06 million +10.1%20.5%14.7 $15.40
6/30/20217,850,000 shares $134.78 million +1.7%18.6%9.8 $17.17

SNDX Short Interest - Frequently Asked Questions

Short interest is the volume of Syndax Pharmaceuticals shares that have been sold short but have not yet been closed out or covered. As of May 29th, investors have sold 16,637,071 shares of SNDX short. 19.58% of Syndax Pharmaceuticals' shares are currently sold short. Learn More on Syndax Pharmaceuticals' 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. SNDX shares currently have a short interest ratio of 16.0. Learn More on Syndax Pharmaceuticals'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. 19.58% of Syndax Pharmaceuticals' floating shares are currently sold short.

Syndax Pharmaceuticals saw a decrease in short interest in May. As of May 29th, there was short interest totaling 16,637,071 shares, a decrease of 23.4% from the previous total of 21,712,664 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.

19.58% of Syndax Pharmaceuticals' shares are currently sold short. Here is how the short interest of companies in the industry of "pharmaceutical products" compare to Syndax Pharmaceuticals: PTC Therapeutics, Inc. (13.62%), Mirum Pharmaceuticals, Inc. (11.74%), Rhythm Pharmaceuticals, Inc. (12.27%), Centessa Pharmaceuticals PLC Sponsored ADR (1.80%), Cogent Biosciences, Inc. (7.22%), Belite Bio, Inc. Sponsored ADR (3.46%), Apogee Therapeutics Inc. (22.46%), Scholar Rock Holding Corporation (15.81%), Amneal Pharmaceuticals, Inc. (2.85%), CG Oncology, Inc. (11.68%),

As of the most recent reporting period, the following stocks had the largest short interest positions: SPDR S&P 500 ETF Trust ($81.27 billion), Invesco QQQ ($49.06 billion), iShares Russell 2000 ETF ($23.61 billion), Western Digital Corporation ($16.93 billion), Sandisk Corporation ($15.61 billion), Salesforce Inc. ($11.65 billion), SPDR S&P Biotech ETF ($10.52 billion), Nebius Group N.V. ($10.24 billion), Lumentum Holdings Inc. ($8.74 billion), and iShares iBoxx $ High Yield Corporate Bond ETF ($8.21 billion). View all of the most shorted stocks.

Short selling SNDX is an investing strategy that aims to generate trading profit from Syndax Pharmaceuticals as its price is falling. SNDX shares are trading up $0.23 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 Syndax Pharmaceuticals 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 SNDX, 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 SNDX, twice per month. The most recent reporting period available is May, 29 2026.

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

  • 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:SNDX) was last updated on 6/17/2026 by MarketBeat.com Staff.
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