Skip to main content
Livermore
Livermore
US stocksTW
ZHEN

Axsome Therapeutics, Inc.

AXSM
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001579428

In the last 90 days, Axsome Therapeutics, Inc. insiders filed 0 open-market purchases and 1 sale; 508 institutions reported holding it in 13F filings for Q2 2026, worth $9.34B 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
3.26M
Shares, settlement Oct 30, 2026
Change
+151.5K
+4.9% vs. Oct 15, 2026
Days to cover
3.35
Short interest ÷ average daily volume
Average daily volume
975.2K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 7,577,624 sharesNov 15, 2024: 7,687,443 sharesNov 29, 2024: 7,075,616 sharesDec 13, 2024: 6,516,027 sharesDec 31, 2024: 6,619,135 sharesJan 15, 2025: 5,752,862 sharesJan 31, 2025: 5,607,008 sharesFeb 14, 2025: 5,867,051 sharesFeb 28, 2025: 5,710,793 sharesMar 14, 2025: 4,905,057 sharesMar 31, 2025: 5,147,725 sharesApr 15, 2025: 4,421,076 sharesApr 30, 2025: 4,195,039 sharesMay 15, 2025: 3,886,568 sharesMay 30, 2025: 3,883,989 sharesJun 13, 2025: 4,018,501 sharesJun 30, 2025: 4,083,784 sharesJul 15, 2025: 3,629,532 sharesJul 31, 2025: 3,673,567 sharesAug 15, 2025: 3,720,743 sharesAug 29, 2025: 3,509,493 sharesSep 15, 2025: 3,451,398 sharesSep 30, 2025: 3,380,948 sharesOct 15, 2025: 3,437,283 sharesOct 31, 2025: 3,604,602 sharesNov 14, 2025: 3,393,844 sharesNov 28, 2025: 3,404,883 sharesDec 15, 2025: 2,835,683 sharesDec 31, 2025: 2,723,923 sharesJan 15, 2026: 2,710,389 sharesJan 30, 2026: 2,713,173 sharesFeb 13, 2026: 2,714,327 sharesFeb 27, 2026: 2,594,445 sharesMar 13, 2026: 2,764,086 sharesMar 31, 2026: 2,829,669 sharesApr 15, 2026: 2,677,936 sharesApr 30, 2026: 2,748,577 sharesMay 15, 2026: 2,777,088 sharesMay 29, 2026: 3,093,253 sharesJun 15, 2026: 3,282,463 sharesJun 30, 2026: 2,634,115 sharesJul 15, 2026: 3,024,030 sharesJul 31, 2026: 3,407,383 sharesAug 14, 2026: 3,205,664 sharesAug 31, 2026: 3,080,218 sharesSep 15, 2026: 3,139,787 sharesSep 30, 2026: 3,306,417 sharesOct 15, 2026: 3,111,573 sharesOct 30, 2026: 3,263,105 shares
Short interest in AXSM by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20263.26M+151.5K+4.9%975.2K3.35
Oct 15, 20263.11M−194.8K−5.9%932.5K3.34
Sep 30, 20263.31M+166.6K+5.3%758.4K4.36
Sep 15, 20263.14M+59.6K+1.9%605.2K5.19
Aug 31, 20263.08M−125.4K−3.9%528.0K5.83
Aug 14, 20263.21M−201.7K−5.9%804.5K3.98
Jul 31, 20263.41M+383.4K+12.7%666.5K5.11
Jul 15, 20263.02M+389.9K+14.8%800.6K3.78
Jun 30, 20262.63M−648.3K−19.8%1.64M1.61
Jun 15, 20263.28M+189.2K+6.1%684.1K4.80
May 29, 20263.09M+316.2K+11.4%619.3K4.99
May 15, 20262.78M+28.5K+1.0%946.3K2.93
Apr 30, 20262.75M+70.6K+2.6%815.9K3.37
Apr 15, 20262.68M−151.7K−5.4%588.6K4.55
Mar 31, 20262.83M+65.6K+2.4%578.4K4.89
Mar 13, 20262.76M+169.6K+6.5%555.8K4.97
Feb 27, 20262.59M−119.9K−4.4%630.9K4.11
Feb 13, 20262.71M+1.15K0.0%536.4K5.06
Jan 30, 20262.71M+2.78K+0.1%667.7K4.06
Jan 15, 20262.71M−13.5K−0.5%848.8K3.19
Dec 31, 20252.72M−111.8K−3.9%709.1K3.84
Dec 15, 20252.84M−569.2K−16.7%488.9K5.80
Nov 28, 20253.40M+11.0K+0.3%566.3K6.01
Nov 14, 20253.39M−210.8K−5.9%619.3K5.48
Oct 31, 20253.60M+167.3K+4.9%455.2K7.92
Oct 15, 20253.44M+56.3K+1.7%462.4K7.43
Sep 30, 20253.38M−70.5K−2.0%473.9K7.13
Sep 15, 20253.45M−58.1K−1.7%614.4K5.62
Aug 29, 20253.51M−211.3K−5.7%576.6K6.09
Aug 15, 20253.72M+47.2K+1.3%564.2K6.60
Jul 31, 20253.67M+44.0K+1.2%639.7K5.74
Jul 15, 20253.63M−454.3K−11.1%600.6K6.04
Jun 30, 20254.08M+65.3K+1.6%743.8K5.49
Jun 13, 20254.02M+134.5K+3.5%677.3K5.93
May 30, 20253.88M−2.58K−0.1%497.7K7.80
May 15, 20253.89M−308.5K−7.4%688.6K5.64
Apr 30, 20254.20M−226.0K−5.1%606.5K6.92
Apr 15, 20254.42M−726.6K−14.1%1.12M3.93
Mar 31, 20255.15M+242.7K+5.0%562.1K9.16
Mar 14, 20254.91M−805.7K−14.1%610.1K8.04
Feb 28, 20255.71M−156.3K−2.7%1.02M5.59
Feb 14, 20255.87M+260.0K+4.6%1.29M4.55
Jan 31, 20255.61M−145.9K−2.5%959.8K5.84
Jan 15, 20255.75M−866.3K−13.1%998.3K5.76
Dec 31, 20246.62M+103.1K+1.6%878.4K7.54
Dec 13, 20246.52M−559.6K−7.9%442.6K14.72
Nov 29, 20247.08M−611.8K−8.0%498.6K14.19
Nov 15, 20247.69M+109.8K+1.5%674.1K11.40
Oct 31, 20247.58M+62.4K+0.8%365.8K20.71

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 AXSM by settlement date
Settlement dateSharesPriceValue
Oct 13, 2026649$166.00$107.7K
Oct 9, 20261,786$170.08$303.8K
Oct 1, 202626$184.39$4.79K
Sep 22, 20262,625$205.49$539.4K
Sep 15, 202619,570$216.58$4.24M
Sep 14, 202620,192$220.75$4.46M
Sep 4, 2026251$208.35$52.3K
Aug 24, 20267$207.77$1.45K
Aug 20, 202616,871$218.20$3.68M
Aug 13, 20262,814$214.66$604.1K
Jul 29, 202619$234.20$4.45K
Jul 28, 202618,003$238.37$4.29M
Jul 27, 2026936$241.00$225.6K
Jul 24, 20268$241.53$1.93K
Jul 23, 20268$239.62$1.92K
Jul 22, 20268$236.95$1.90K
Jul 14, 202612$228.28$2.74K
Jul 10, 2026500$248.95$124.5K
Jun 30, 2026246,120$241.12$59.3M
Jun 29, 2026331,583$241.67$80.1M
Jun 25, 202635,000$237.92$8.33M
Jun 23, 2026173$247.85$42.9K
Jun 22, 20261,522$250.50$381.3K
Jun 18, 20262,674$252.16$674.3K
Jun 15, 2026884$255.17$225.6K
Jun 11, 202614$246.34$3.45K
Jun 1, 20262,117$234.48$496.4K
May 27, 20267,241$234.20$1.70M
May 18, 20264,976$227.72$1.13M
May 13, 202657,815$224.03$13.0M

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 AXSM by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026292,1560455,29164.2%
Nov 9, 2026181,2290391,03546.3%
Nov 6, 2026216,354251314,03768.9%
Nov 5, 2026301,074176586,76251.3%
Nov 4, 2026244,0141,437434,03156.2%
Nov 3, 2026608,5725,533873,29569.7%
Nov 2, 2026773,29421,8921,396,85055.4%
Oct 30, 2026557,6200927,79060.1%
Oct 29, 2026175,3470297,19159.0%
Oct 28, 2026158,7210296,45853.5%
Oct 27, 2026160,9600473,92934.0%
Oct 26, 2026193,582307352,47354.9%
Oct 23, 2026498,7990767,42865.0%
Oct 22, 2026190,4610323,45558.9%
Oct 21, 2026161,7510243,75166.4%
Oct 20, 2026175,11320261,86566.9%
Oct 19, 2026141,724114337,55842.0%
Oct 16, 2026148,6583266,59155.8%
Oct 15, 2026228,973387391,93158.4%
Oct 14, 2026179,7600417,36543.1%
Oct 13, 2026156,3980545,12328.7%
Oct 12, 202699,7310269,74237.0%
Oct 9, 2026104,9700330,85731.7%
Oct 8, 2026143,50530417,70034.4%
Oct 7, 2026122,5790305,12940.2%
Oct 6, 2026196,6400521,08537.7%
Oct 5, 2026130,83513371,13635.3%
Oct 2, 2026170,076611500,13734.0%
Oct 1, 2026123,59348282,79143.7%
Sep 30, 2026167,2560213,29278.4%

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 AXSM
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,552,34035,252439,05210,50178.0%
Oct 12, 2026T11,480,10041,134571,39310,71772.1%
Oct 5, 2026T11,521,09234,6501,061,48811,82158.9%
Sep 28, 2026T11,539,90835,528694,75812,13468.9%
Sep 21, 2026T11,059,99632,036449,5869,60670.2%
Sep 14, 2026T1907,13731,011812,5978,17552.7%
Sep 7, 2026T1858,30129,419407,0766,30367.8%
Aug 31, 2026T1910,69834,380334,9357,71673.1%
Aug 24, 2026T1793,68827,860335,4756,78570.3%
Aug 17, 2026T1931,92334,993538,3686,85963.4%
Aug 10, 2026T11,727,98343,837457,1409,69279.1%
Aug 3, 2026T11,067,25842,359553,5468,66565.8%