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Praxis Precision Medicines, Inc.

PRAX
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001689548

No open-market purchases or sales by Praxis Precision Medicines, Inc. insiders were filed in the last 90 days; 311 institutions reported holding it in 13F filings for Q2 2026, worth $11.3B in total; no superinvestor holds it.

Four kinds of short-selling data, each measuring something different:

  • Short interest: shares sold short and not yet bought back, as of a settlement date. FINRA publishes it twice a month, about eight business days after the settlement date.
  • Daily short volume: shares sold short each day in off-exchange trades reported to FINRA. It counts trades, not open positions, and is published the next day.
  • Fails-to-deliver: shares not delivered by the settlement date. The SEC publishes them twice a month, about two weeks late.
  • ATS (dark pool) volume: weekly volume on alternative trading systems and other off-exchange venues. FINRA publishes it two to four weeks after the week.

More in the glossary.

Short interest

Shares sold short and not yet bought back, from FINRA, on every settlement date in the last two years.

Short interest
4.21M
Shares, settlement Oct 30, 2026
Change
+285.8K
+7.3% vs. Oct 15, 2026
Days to cover
8.69
Short interest ÷ average daily volume
Average daily volume
484.4K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 1,724,599 sharesNov 15, 2024: 1,529,073 sharesNov 29, 2024: 1,465,295 sharesDec 13, 2024: 1,533,809 sharesDec 31, 2024: 1,901,982 sharesJan 15, 2025: 2,040,384 sharesJan 31, 2025: 2,622,999 sharesFeb 14, 2025: 2,668,966 sharesFeb 28, 2025: 1,821,714 sharesMar 14, 2025: 2,060,595 sharesMar 31, 2025: 1,987,403 sharesApr 15, 2025: 1,847,505 sharesApr 30, 2025: 1,773,052 sharesMay 15, 2025: 1,880,004 sharesMay 30, 2025: 1,798,748 sharesJun 13, 2025: 1,742,912 sharesJun 30, 2025: 1,781,578 sharesJul 15, 2025: 1,941,375 sharesJul 31, 2025: 2,120,688 sharesAug 15, 2025: 2,331,769 sharesAug 29, 2025: 2,362,822 sharesSep 15, 2025: 2,383,700 sharesSep 30, 2025: 2,638,027 sharesOct 15, 2025: 2,611,630 sharesOct 31, 2025: 3,058,291 sharesNov 14, 2025: 3,613,141 sharesNov 28, 2025: 3,550,804 sharesDec 15, 2025: 3,672,170 sharesDec 31, 2025: 3,760,427 sharesJan 15, 2026: 3,747,796 sharesJan 30, 2026: 3,859,164 sharesFeb 13, 2026: 3,795,192 sharesFeb 27, 2026: 3,786,207 sharesMar 13, 2026: 3,743,162 sharesMar 31, 2026: 3,953,698 sharesApr 15, 2026: 3,779,307 sharesApr 30, 2026: 3,775,673 sharesMay 15, 2026: 3,708,318 sharesMay 29, 2026: 3,651,741 sharesJun 15, 2026: 3,568,196 sharesJun 30, 2026: 3,987,219 sharesJul 15, 2026: 3,763,401 sharesJul 31, 2026: 3,656,485 sharesAug 14, 2026: 3,714,692 sharesAug 31, 2026: 3,740,751 sharesSep 15, 2026: 3,795,697 sharesSep 30, 2026: 4,188,193 sharesOct 15, 2026: 3,921,934 sharesOct 30, 2026: 4,207,692 shares
Short interest in PRAX by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20264.21M+285.8K+7.3%484.4K8.69
Oct 15, 20263.92M−266.3K−6.4%529.1K7.41
Sep 30, 20264.19M+392.5K+10.3%585.3K7.16
Sep 15, 20263.80M+54.9K+1.5%255.1K14.88
Aug 31, 20263.74M+26.1K+0.7%368.1K10.16
Aug 14, 20263.71M+58.2K+1.6%476.6K7.79
Jul 31, 20263.66M−106.9K−2.8%322.4K11.34
Jul 15, 20263.76M−223.8K−5.6%408.5K9.21
Jun 30, 20263.99M+419.0K+11.7%773.4K5.16
Jun 15, 20263.57M−83.5K−2.3%649.9K5.49
May 29, 20263.65M−56.6K−1.5%302.5K12.07
May 15, 20263.71M−67.4K−1.8%402.7K9.21
Apr 30, 20263.78M−3.63K−0.1%403.9K9.35
Apr 15, 20263.78M−174.4K−4.4%366.7K10.30
Mar 31, 20263.95M+210.5K+5.6%476.5K8.30
Mar 13, 20263.74M−43.0K−1.1%378.1K9.90
Feb 27, 20263.79M−8.98K−0.2%393.6K9.62
Feb 13, 20263.80M−64.0K−1.7%457.5K8.30
Jan 30, 20263.86M+111.4K+3.0%570.0K6.77
Jan 15, 20263.75M−12.6K−0.3%611.2K6.13
Dec 31, 20253.76M+88.3K+2.4%615.5K6.11
Dec 15, 20253.67M+121.4K+3.4%1.06M3.45
Nov 28, 20253.55M−62.3K−1.7%1.17M3.04
Nov 14, 20253.61M+554.9K+18.1%759.8K4.76
Oct 31, 20253.06M+446.7K+17.1%2.21M1.39
Oct 15, 20252.61M−26.4K−1.0%315.4K8.28
Sep 30, 20252.64M+254.3K+10.7%492.5K5.36
Sep 15, 20252.38M+20.9K+0.9%488.0K4.88
Aug 29, 20252.36M+31.1K+1.3%336.0K7.03
Aug 15, 20252.33M+211.1K+10.0%625.9K3.73
Jul 31, 20252.12M+179.3K+9.2%477.9K4.44
Jul 15, 20251.94M+159.8K+9.0%374.5K5.18
Jun 30, 20251.78M+38.7K+2.2%271.7K6.56
Jun 13, 20251.74M−55.8K−3.1%346.7K5.03
May 30, 20251.80M−81.3K−4.3%253.5K7.09
May 15, 20251.88M+107.0K+6.0%369.8K5.08
Apr 30, 20251.77M−74.5K−4.0%424.0K4.18
Apr 15, 20251.85M−139.9K−7.0%647.7K2.85
Mar 31, 20251.99M−73.2K−3.6%454.3K4.37
Mar 14, 20252.06M+238.9K+13.1%642.9K3.21
Feb 28, 20251.82M−847.3K−31.7%711.5K2.56
Feb 14, 20252.67M+46.0K+1.8%412.8K6.47
Jan 31, 20252.62M+582.6K+28.6%358.6K7.32
Jan 15, 20252.04M+138.4K+7.3%327.4K6.23
Dec 31, 20241.90M+368.2K+24.0%455.6K4.18
Dec 13, 20241.53M+68.5K+4.7%212.2K7.23
Nov 29, 20241.47M−63.8K−4.2%352.5K4.16
Nov 15, 20241.53M−195.5K−11.3%439.8K3.48
Oct 31, 20241.72M+8.63K+0.5%187.9K9.18

Fails-to-deliver

Shares that weren't delivered by the settlement date, from the SEC, for the last 30 dates with fails. The price is the previous day's closing price published by the SEC.

Fails-to-deliver in PRAX by settlement date
Settlement dateSharesPriceValue
Oct 14, 202626,972$243.34$6.56M
Oct 13, 2026323$251.38$81.2K
Oct 9, 202617$263.55$4.48K
Oct 8, 20262,334$278.02$648.9K
Oct 6, 2026596$283.56$169.0K
Oct 5, 2026325$295.51$96.0K
Oct 2, 202665$286.91$18.6K
Oct 1, 2026323$291.23$94.1K
Sep 30, 202673$281.00$20.5K
Sep 23, 202660$300.65$18.0K
Sep 22, 20264,341$298.87$1.30M
Sep 14, 2026760$334.58$254.3K
Aug 27, 2026437$377.37$164.9K
Aug 25, 202649$368.03$18.0K
Aug 13, 20263$386.33$1.16K
Aug 12, 2026272$370.68$100.8K
Aug 11, 20261,544$366.96$566.6K
Aug 10, 20262,021$360.76$729.1K
Aug 7, 20261,204$370.16$445.7K
Aug 4, 202667$305.51$20.5K
Aug 3, 202667$307.83$20.6K
Jul 8, 20268,350$323.95$2.70M
Jul 6, 2026568$318.52$180.9K
Jun 30, 202662$350.56$21.7K
Jun 29, 2026203$327.79$66.5K
Jun 25, 2026300$308.94$92.7K
Jun 23, 2026230$303.39$69.8K
Jun 22, 202621$282.31$5.93K
Jun 18, 2026166$270.01$44.8K
Jun 15, 2026143$266.58$38.1K

Daily short volume

Off-exchange short-sale volume, not short interest: shares sold short each day in trades reported to FINRA, for the last 30 trading days.

The short volume ratio isn't a sentiment gauge: market makers sell short to fill buy orders and to hedge, so short sales are usually about half of off-exchange volume.

Off-exchange short volume in PRAX by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026120,38233206,14258.4%
Nov 9, 2026208,83768492,66442.4%
Nov 6, 202643,5990107,87040.4%
Nov 5, 202666,70974106,36362.7%
Nov 4, 202660,1589081,50873.8%
Nov 3, 202644,8952,60461,35273.2%
Nov 2, 202669,6840115,76260.2%
Oct 30, 202665,8780112,42158.6%
Oct 29, 2026128,3200158,74780.8%
Oct 28, 202696,1330132,20872.7%
Oct 27, 202682,7680105,25278.6%
Oct 26, 2026145,437203171,52484.8%
Oct 23, 202688,8880162,29854.8%
Oct 22, 202687,12968120,44472.3%
Oct 21, 2026108,5490165,47565.6%
Oct 20, 2026226,1400307,46373.6%
Oct 19, 2026210,56573306,57268.7%
Oct 16, 2026133,9963187,74271.4%
Oct 15, 2026157,2740278,22556.5%
Oct 14, 2026110,58041391,27428.3%
Oct 13, 202698,8239235,67341.9%
Oct 12, 202633,45911142,84423.4%
Oct 9, 202651,5020213,19324.2%
Oct 8, 202697,7150358,95727.2%
Oct 7, 2026112,1190203,63455.1%
Oct 6, 2026102,3750156,93665.2%
Oct 5, 2026125,7330208,51560.3%
Oct 2, 2026147,2740190,70977.2%
Oct 1, 2026111,6450172,43664.7%
Sep 30, 2026176,589396243,59472.5%

ATS (dark pool) volume

Weekly volume on alternative trading systems (ATS) and other off-exchange (OTC) venues, from FINRA, for the last 12 weeks. ATS share is ATS volume ÷ (ATS + OTC volume), not a share of all trading.

Weekly ATS and OTC volume in PRAX
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2930,42130,167321,3239,36274.3%
Sep 28, 2026T2708,91827,240283,5158,17371.4%
Sep 21, 2026T21,101,14028,197493,6718,45669.0%
Sep 14, 2026T2726,79324,219431,5487,37662.7%
Sep 7, 2026T2301,52915,803223,0226,73057.5%
Aug 31, 2026T2353,09219,545252,8267,40858.3%
Aug 24, 2026T2490,96519,331267,4408,02564.7%
Aug 17, 2026T2789,08626,345328,4958,65970.6%
Aug 10, 2026T2631,83325,252410,9268,19460.6%
Aug 3, 2026T2953,45033,073390,1399,94971.0%
Jul 27, 2026T2686,22827,197231,7216,29374.8%
Jul 20, 2026T2393,24419,993205,9914,62065.6%