Skip to main content
Livermore
Livermore
US stocksTW
ZHEN

Odyssey Therapeutics, Inc.

ODTX
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001882782

No open-market purchases or sales by Odyssey Therapeutics, Inc. insiders were filed in the last 90 days; 59 institutions reported holding it in 13F filings for Q2 2026, worth $652.9M in total; HHLR Advisors (Hillhouse) is the only superinvestor holding 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
3.35M
Shares, settlement Oct 30, 2026
Change
+66.0K
+2.0% vs. Oct 15, 2026
Days to cover
15.43
Short interest ÷ average daily volume
Average daily volume
217.0K
Shares, as reported by FINRA
Short interest by settlement date
May 15, 2026: 86,503 sharesMay 29, 2026: 514,441 sharesJun 15, 2026: 1,343,395 sharesJun 30, 2026: 1,796,735 sharesJul 15, 2026: 1,993,860 sharesJul 31, 2026: 2,270,930 sharesAug 14, 2026: 2,249,359 sharesAug 31, 2026: 2,208,908 sharesSep 15, 2026: 2,208,686 sharesSep 30, 2026: 3,105,465 sharesOct 15, 2026: 3,281,824 sharesOct 30, 2026: 3,347,791 shares
Short interest in ODTX by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20263.35M+66.0K+2.0%217.0K15.43
Oct 15, 20263.28M+176.4K+5.7%265.0K12.38
Sep 30, 20263.11M+896.8K+40.6%551.2K5.63
Sep 15, 20262.21M−2220.0%204.9K10.78
Aug 31, 20262.21M−40.5K−1.8%172.4K12.81
Aug 14, 20262.25M−21.6K−1.0%120.6K18.66
Jul 31, 20262.27M+277.1K+13.9%234.7K9.68
Jul 15, 20261.99M+197.1K+11.0%306.3K6.51
Jun 30, 20261.80M+453.3K+33.8%487.8K3.68
Jun 15, 20261.34M+829.0K+161.1%283.0K4.75
May 29, 2026514.4K+427.9K+494.7%335.1K1.54
May 15, 202686.5K+86.5K+100.0%426.7K1.00

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 ODTX by settlement date
Settlement dateSharesPriceValue
Oct 13, 20261,021$18.26$18.6K
Oct 2, 2026452$20.42$9.23K
Sep 28, 20265,737$20.51$117.7K
Sep 25, 20267,152$19.93$142.5K
Sep 21, 202633,405$24.38$814.4K
Sep 18, 20268,302$23.22$192.8K
Sep 17, 20267,719$23.12$178.5K
Sep 16, 2026210$21.99$4.62K
Sep 15, 20263,000$24.26$72.8K
Sep 9, 202630$26.97$809.1
Sep 4, 20262$26.40$52.8
Sep 3, 202655$26.62$1.46K
Aug 26, 202619,394$26.23$508.7K
Aug 24, 2026303$26.39$8.00K
Aug 21, 2026470$24.67$11.6K
Aug 14, 20265,819$20.72$120.6K
Aug 12, 20262,059$20.35$41.9K
Aug 7, 20266$21.55$129.3
Aug 6, 20262,504$20.89$52.3K
Aug 5, 20266,601$19.96$131.8K
Jul 30, 2026704$18.05$12.7K
Jul 29, 20262,123$18.43$39.1K
Jul 28, 20262,378$19.03$45.3K
Jul 27, 202616,368$18.66$305.4K
Jul 24, 20261,942$17.67$34.3K
Jul 23, 20262,202$18.61$41.0K
Jul 21, 20261,198$17.58$21.1K
Jul 20, 20262,945$17.61$51.9K
Jul 17, 20262,635$17.06$45.0K
Jul 16, 2026740$17.25$12.8K

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 ODTX by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 13, 2026104,9480107,84797.3%
Nov 12, 2026111,9210145,89076.7%
Nov 11, 202676,635096,17379.7%
Nov 10, 2026107,3060158,63667.6%
Nov 9, 2026105,2800172,37761.1%
Nov 6, 2026243,2900312,00078.0%
Nov 5, 2026105,3312,426149,97470.2%
Nov 4, 2026213,92245,656311,09168.8%
Nov 3, 2026102,8690138,09774.5%
Nov 2, 202676,9610114,10167.4%
Oct 30, 202652,104071,30173.1%
Oct 29, 202674,7800100,84374.2%
Oct 28, 202650,822085,61259.4%
Oct 27, 202687,4900120,74272.5%
Oct 26, 202646,069056,98880.8%
Oct 23, 202668,190086,38078.9%
Oct 22, 202651,998073,68870.6%
Oct 21, 202660,799079,31676.7%
Oct 20, 2026113,7970141,81480.2%
Oct 19, 2026100,9570141,09871.6%
Oct 16, 202667,132085,33578.7%
Oct 15, 202650,215072,20269.5%
Oct 14, 202653,280058,39791.2%
Oct 13, 202692,1260106,85786.2%
Oct 12, 202688,0480104,01084.7%
Oct 9, 2026124,215288141,44787.8%
Oct 8, 2026107,3840244,50643.9%
Oct 7, 202691,8821,472110,62183.1%
Oct 6, 202699,1192,176164,55960.2%
Oct 5, 202649,607065,49475.7%

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 ODTX
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2629,6609,746106,41323,46185.5%
Sep 28, 2026T2329,3878,691123,56134,51072.7%
Sep 21, 2026T2497,64211,462238,2436,80967.6%
Sep 14, 2026T2771,59616,124742,1211,58951.0%
Sep 7, 2026T2310,9339,46261,51986983.5%
Aug 31, 2026T2402,71911,24360,95490086.9%
Aug 24, 2026T2381,47610,07178,0961,61783.0%
Aug 17, 2026T2308,9517,47134,36371690.0%
Aug 10, 2026T2180,6596,62954,32166876.9%
Aug 3, 2026T2225,3036,90050,90590781.6%
Jul 27, 2026T2209,0004,51766,44490475.9%
Jul 20, 2026T2223,7894,90369,26298876.4%