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Neuronetics, Inc.

STIM
Exchange
Nasdaq
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001227636

In the last 90 days, Neuronetics, Inc. insiders filed 2 open-market purchases and 0 sales; 86 institutions reported holding it in 13F filings for Q2 2026, worth $48.4M 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
6.66M
Shares, settlement Oct 30, 2026
Change
−550.7K
−7.6% vs. Oct 15, 2026
Days to cover
9.89
Short interest ÷ average daily volume
Average daily volume
673.5K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 735,036 sharesNov 15, 2024: 969,050 sharesNov 29, 2024: 607,262 sharesDec 13, 2024: 487,388 sharesDec 31, 2024: 312,933 sharesJan 15, 2025: 1,151,690 sharesJan 31, 2025: 1,284,532 sharesFeb 14, 2025: 1,597,516 sharesFeb 28, 2025: 1,986,271 sharesMar 14, 2025: 2,784,210 sharesMar 31, 2025: 3,343,015 sharesApr 15, 2025: 3,439,752 sharesApr 30, 2025: 3,664,661 sharesMay 15, 2025: 2,699,363 sharesMay 30, 2025: 2,730,278 sharesJun 13, 2025: 3,114,623 sharesJun 30, 2025: 4,261,486 sharesJul 15, 2025: 4,710,412 sharesJul 31, 2025: 4,750,856 sharesAug 15, 2025: 4,947,970 sharesAug 29, 2025: 5,867,154 sharesSep 15, 2025: 6,122,194 sharesSep 30, 2025: 5,808,283 sharesOct 15, 2025: 5,807,649 sharesOct 31, 2025: 5,531,067 sharesNov 14, 2025: 6,516,778 sharesNov 28, 2025: 6,000,423 sharesDec 15, 2025: 6,712,159 sharesDec 31, 2025: 7,547,810 sharesJan 15, 2026: 7,159,363 sharesJan 30, 2026: 8,588,113 sharesFeb 13, 2026: 8,392,324 sharesFeb 27, 2026: 10,258,643 sharesMar 13, 2026: 9,357,958 sharesMar 31, 2026: 9,377,645 sharesApr 15, 2026: 10,912,723 sharesApr 30, 2026: 10,470,096 sharesMay 15, 2026: 9,637,567 sharesMay 29, 2026: 9,878,404 sharesJun 15, 2026: 9,806,159 sharesJun 30, 2026: 7,681,882 sharesJul 15, 2026: 9,373,142 sharesJul 31, 2026: 9,328,278 sharesAug 14, 2026: 8,048,779 sharesAug 31, 2026: 6,667,747 sharesSep 15, 2026: 6,209,774 sharesSep 30, 2026: 7,067,347 sharesOct 15, 2026: 7,210,930 sharesOct 30, 2026: 6,660,208 shares
Short interest in STIM by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20266.66M−550.7K−7.6%673.5K9.89
Oct 15, 20267.21M+143.6K+2.0%764.5K9.43
Sep 30, 20267.07M+857.6K+13.8%887.7K7.96
Sep 15, 20266.21M−458.0K−6.9%1.66M3.74
Aug 31, 20266.67M−1.38M−17.2%1.02M6.52
Aug 14, 20268.05M−1.28M−13.7%4.94M1.63
Jul 31, 20269.33M−44.9K−0.5%2.71M3.44
Jul 15, 20269.37M+1.69M+22.0%1.21M7.75
Jun 30, 20267.68M−2.12M−21.7%1.63M4.70
Jun 15, 20269.81M−72.2K−0.7%1.30M7.57
May 29, 20269.88M+240.8K+2.5%2.91M3.40
May 15, 20269.64M−832.5K−8.0%3.35M2.88
Apr 30, 202610.5M−442.6K−4.1%1.69M6.21
Apr 15, 202610.9M+1.54M+16.4%2.41M4.52
Mar 31, 20269.38M+19.7K+0.2%2.77M3.39
Mar 13, 20269.36M−900.7K−8.8%769.6K12.16
Feb 27, 202610.3M+1.87M+22.2%1.14M8.98
Feb 13, 20268.39M−195.8K−2.3%4.69M1.79
Jan 30, 20268.59M+1.43M+20.0%1.08M7.92
Jan 15, 20267.16M−388.4K−5.2%1.69M4.24
Dec 31, 20257.55M+835.7K+12.5%1.13M6.67
Dec 15, 20256.71M+711.7K+11.9%1.28M5.23
Nov 28, 20256.00M−516.4K−7.9%2.90M2.07
Nov 14, 20256.52M+985.7K+17.8%2.30M2.83
Oct 31, 20255.53M−276.6K−4.8%933.4K5.93
Oct 15, 20255.81M−6340.0%1.19M4.89
Sep 30, 20255.81M−313.9K−5.1%1.13M5.15
Sep 15, 20256.12M+255.0K+4.4%1.66M3.70
Aug 29, 20255.87M+919.2K+18.6%1.54M3.80
Aug 15, 20254.95M+197.1K+4.2%1.66M2.98
Jul 31, 20254.75M+40.4K+0.9%917.4K5.18
Jul 15, 20254.71M+448.9K+10.5%847.5K5.56
Jun 30, 20254.26M+1.15M+36.8%1.15M3.71
Jun 13, 20253.11M+384.3K+14.1%479.5K6.50
May 30, 20252.73M+30.9K+1.2%603.9K4.52
May 15, 20252.70M−965.3K−26.3%1.10M2.46
Apr 30, 20253.66M+224.9K+6.5%584.7K6.27
Apr 15, 20253.44M+96.7K+2.9%1.12M3.06
Mar 31, 20253.34M+558.8K+20.1%1.02M3.27
Mar 14, 20252.78M+797.9K+40.2%2.00M1.39
Feb 28, 20251.99M+388.8K+24.3%1.72M1.16
Feb 14, 20251.60M+313.0K+24.4%2.33M1.00
Jan 31, 20251.28M+132.8K+11.5%1.00M1.28
Jan 15, 20251.15M+838.8K+268.0%1.59M1.00
Dec 31, 2024312.9K−174.5K−35.8%269.2K1.16
Dec 13, 2024487.4K−119.9K−19.7%240.3K2.03
Nov 29, 2024607.3K−361.8K−37.3%329.4K1.84
Nov 15, 2024969.0K+234.0K+31.8%1.23M1.00
Oct 31, 2024735.0K+24.0K+3.4%150.7K4.88

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 STIM by settlement date
Settlement dateSharesPriceValue
Sep 24, 20265,865$2.88$16.9K
Sep 16, 20261,000$2.80$2.80K
Sep 11, 20261,078$3.01$3.24K
Sep 10, 20265,755$3.04$17.5K
Sep 8, 202639,583$2.88$114.0K
Sep 4, 202698,343$2.72$267.5K
Sep 3, 2026102,433$2.77$283.7K
Aug 27, 20261,636$3.00$4.91K
Aug 21, 202647,295$3.09$146.1K
Aug 20, 202652,412$3.14$164.6K
Aug 19, 202668$3.15$214.2
Aug 18, 20262,500$3.27$8.18K
Aug 17, 20261$3.30$3.3
Aug 12, 2026228,031$3.19$727.4K
Aug 7, 20267,650$2.25$17.2K
Aug 6, 202674,555$2.35$175.2K
Aug 5, 202661,956$2.30$142.5K
Aug 4, 202630,625$2.16$66.2K
Jul 31, 202611,060$1.97$21.8K
Jul 28, 2026121$1.81$219.01
Jul 24, 2026626$1.88$1.18K
Jul 23, 202695,828$1.93$184.9K
Jul 22, 202690,826$1.88$170.8K
Jul 20, 20265,806$1.62$9.41K
Jul 17, 2026641$1.78$1.14K
Jul 15, 20269,841$1.77$17.4K
Jul 14, 2026418$1.79$748.22
Jul 13, 2026418$1.76$735.68
Jul 9, 20261,317$1.54$2.03K
Jul 8, 202629,270$1.55$45.4K

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 STIM by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 202686,685247449,78819.3%
Nov 9, 2026186,0697,8591,070,84617.4%
Nov 6, 2026187,10013,1961,394,44813.4%
Nov 5, 2026219,567503730,81130.0%
Nov 4, 2026783,39420,0312,865,40227.3%
Nov 3, 2026568,584250733,86477.5%
Nov 2, 2026174,157689424,40841.0%
Oct 30, 2026247,572290551,18244.9%
Oct 29, 2026197,9030355,75255.6%
Oct 28, 202653,1760144,40236.8%
Oct 27, 202645,9131,850114,71540.0%
Oct 26, 2026284,2190418,60267.9%
Oct 23, 2026173,8900336,45551.7%
Oct 22, 2026168,1570474,42935.4%
Oct 21, 2026110,0830163,20367.5%
Oct 20, 2026234,1920308,83175.8%
Oct 19, 2026140,4270261,13253.8%
Oct 16, 2026401,0241,806621,99564.5%
Oct 15, 2026148,3610333,49244.5%
Oct 14, 2026104,1811,857381,68927.3%
Oct 13, 202689,9981,845250,60935.9%
Oct 12, 202662,9890137,60045.8%
Oct 9, 202671,8972,971174,67541.2%
Oct 8, 202659,1540181,37132.6%
Oct 7, 2026120,133820321,63737.4%
Oct 6, 2026180,600239402,76844.8%
Oct 5, 2026127,3620370,98934.3%
Oct 2, 2026220,741296628,88235.1%
Oct 1, 2026203,2610477,82342.5%
Sep 30, 202648,4430295,75516.4%

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 STIM
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 5, 2026T2503,6466,540969,0622,27434.2%
Sep 28, 2026T2729,0936,9111,745,6283,37529.5%
Sep 21, 2026T2453,4826,478774,9973,17236.9%
Sep 14, 2026T21,383,1068,3172,712,0775,40433.8%
Sep 7, 2026T2484,5057,0161,183,4963,23729.0%
Aug 31, 2026T2570,4647,9791,425,1434,49428.6%
Aug 24, 2026T2472,8117,3101,104,8443,83730.0%
Aug 17, 2026T2918,85811,3672,107,1685,51430.4%
Aug 10, 2026T23,526,29924,81420,317,63770,70614.8%
Aug 3, 2026T2582,9885,2773,063,3355,86216.0%
Jul 27, 2026T2482,5594,3711,610,9203,58623.1%
Jul 20, 2026T21,122,5156,7636,048,57815,05315.7%