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Advanced Energy Industries Inc

AEIS
Exchange
Nasdaq
Industry
Electronic Components, NEC
SEC CIK
0000927003

In the last 90 days, Advanced Energy Industries Inc insiders filed 0 open-market purchases and 8 sales; 686 institutions reported holding it in 13F filings for Q2 2026, worth $15.0B in total; Maverick Capital 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
1.51M
Shares, settlement Oct 30, 2026
Change
−608
0.0% vs. Oct 15, 2026
Days to cover
2.32
Short interest ÷ average daily volume
Average daily volume
649.5K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,221,083 sharesNov 15, 2024: 2,542,994 sharesNov 29, 2024: 2,562,360 sharesDec 13, 2024: 2,616,677 sharesDec 31, 2024: 2,776,902 sharesJan 15, 2025: 2,652,115 sharesJan 31, 2025: 2,375,439 sharesFeb 14, 2025: 2,381,278 sharesFeb 28, 2025: 2,244,805 sharesMar 14, 2025: 2,501,633 sharesMar 31, 2025: 2,588,204 sharesApr 15, 2025: 2,634,337 sharesApr 30, 2025: 2,507,079 sharesMay 15, 2025: 2,664,993 sharesMay 30, 2025: 2,713,194 sharesJun 13, 2025: 2,662,611 sharesJun 30, 2025: 2,582,339 sharesJul 15, 2025: 2,507,002 sharesJul 31, 2025: 2,559,593 sharesAug 15, 2025: 2,838,055 sharesAug 29, 2025: 2,652,627 sharesSep 15, 2025: 2,847,409 sharesSep 30, 2025: 2,422,334 sharesOct 15, 2025: 2,447,333 sharesOct 31, 2025: 2,424,225 sharesNov 14, 2025: 2,338,224 sharesNov 28, 2025: 2,261,810 sharesDec 15, 2025: 2,207,386 sharesDec 31, 2025: 2,250,841 sharesJan 15, 2026: 2,324,999 sharesJan 30, 2026: 2,320,520 sharesFeb 13, 2026: 2,214,155 sharesFeb 27, 2026: 2,201,262 sharesMar 13, 2026: 2,262,074 sharesMar 31, 2026: 2,441,501 sharesApr 15, 2026: 2,486,197 sharesApr 30, 2026: 2,359,606 sharesMay 15, 2026: 2,703,690 sharesMay 29, 2026: 2,273,726 sharesJun 15, 2026: 2,615,305 sharesJun 30, 2026: 1,497,633 sharesJul 15, 2026: 1,786,027 sharesJul 31, 2026: 1,878,766 sharesAug 14, 2026: 1,727,827 sharesAug 31, 2026: 1,736,787 sharesSep 15, 2026: 1,818,246 sharesSep 30, 2026: 1,828,577 sharesOct 15, 2026: 1,506,007 sharesOct 30, 2026: 1,505,399 shares
Short interest in AEIS by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20261.51M−6080.0%649.5K2.32
Oct 15, 20261.51M−322.6K−17.6%508.0K2.96
Sep 30, 20261.83M+10.3K+0.6%533.6K3.43
Sep 15, 20261.82M+81.5K+4.7%475.2K3.83
Aug 31, 20261.74M+8.96K+0.5%532.1K3.26
Aug 14, 20261.73M−150.9K−8.0%662.3K2.61
Jul 31, 20261.88M+92.7K+5.2%749.9K2.51
Jul 15, 20261.79M+288.4K+19.3%633.1K2.82
Jun 30, 20261.50M−1.12M−42.7%1.31M1.15
Jun 15, 20262.62M+341.6K+15.0%870.3K3.01
May 29, 20262.27M−430.0K−15.9%1.13M2.01
May 15, 20262.70M+344.1K+14.6%1.04M2.59
Apr 30, 20262.36M−126.6K−5.1%620.9K3.80
Apr 15, 20262.49M+44.7K+1.8%477.5K5.21
Mar 31, 20262.44M+179.4K+7.9%676.2K3.61
Mar 13, 20262.26M+60.8K+2.8%636.8K3.55
Feb 27, 20262.20M−12.9K−0.6%577.5K3.81
Feb 13, 20262.21M−106.4K−4.6%831.7K2.66
Jan 30, 20262.32M−4.48K−0.2%1.20M1.93
Jan 15, 20262.32M+74.2K+3.3%530.9K4.38
Dec 31, 20252.25M+43.5K+2.0%285.8K7.88
Dec 15, 20252.21M−54.4K−2.4%372.9K5.92
Nov 28, 20252.26M−76.4K−3.3%383.7K5.89
Nov 14, 20252.34M−86.0K−3.6%724.3K3.23
Oct 31, 20252.42M−23.1K−0.9%478.6K5.07
Oct 15, 20252.45M+25.0K+1.0%349.9K6.99
Sep 30, 20252.42M−425.1K−14.9%484.6K5.00
Sep 15, 20252.85M+194.8K+7.3%287.2K9.92
Aug 29, 20252.65M−185.4K−6.5%332.0K7.99
Aug 15, 20252.84M+278.5K+10.9%645.6K4.40
Jul 31, 20252.56M+52.6K+2.1%310.8K8.24
Jul 15, 20252.51M−75.3K−2.9%318.1K7.88
Jun 30, 20252.58M−80.3K−3.0%420.3K6.14
Jun 13, 20252.66M−50.6K−1.9%237.3K11.22
May 30, 20252.71M+48.2K+1.8%231.6K11.71
May 15, 20252.66M+157.9K+6.3%410.7K6.49
Apr 30, 20252.51M−127.3K−4.8%331.9K7.55
Apr 15, 20252.63M+46.1K+1.8%518.1K5.08
Mar 31, 20252.59M+86.6K+3.5%340.9K7.59
Mar 14, 20252.50M+256.8K+11.4%334.1K7.49
Feb 28, 20252.24M−136.5K−5.7%395.4K5.68
Feb 14, 20252.38M+5.84K+0.3%287.7K8.28
Jan 31, 20252.38M−276.7K−10.4%280.7K8.46
Jan 15, 20252.65M−124.8K−4.5%240.3K11.04
Dec 31, 20242.78M+160.2K+6.1%225.0K12.34
Dec 13, 20242.62M+54.3K+2.1%176.0K14.87
Nov 29, 20242.56M+19.4K+0.8%238.2K10.76
Nov 15, 20242.54M+321.9K+14.5%235.3K10.81
Oct 31, 20242.22M−35.7K−1.6%232.8K9.54

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 AEIS by settlement date
Settlement dateSharesPriceValue
Oct 13, 202624$280.77$6.74K
Oct 9, 202679$284.24$22.5K
Sep 25, 20261,123$278.03$312.2K
Sep 17, 202611$252.22$2.77K
Aug 17, 20266$330.26$1.98K
Aug 14, 20264$329.54$1.32K
Aug 7, 202663$323.91$20.4K
Aug 6, 20268$329.23$2.63K
Jul 30, 202646$252.49$11.6K
Jul 29, 20262,541$273.42$694.8K
Jul 23, 20267$317.31$2.22K
Jul 16, 202692$301.88$27.8K
Jul 9, 202612$293.64$3.52K
Jul 8, 20269,337$287.73$2.69M
Jul 7, 20261$310.84$310.84
Jul 2, 2026613$356.35$218.4K
Jul 1, 2026134$372.87$50.0K
Jun 29, 2026401,435$348.11$139.7M
Jun 26, 202620$375.15$7.50K
Jun 25, 20269,542$359.61$3.43M
Jun 24, 202620,606$364.96$7.52M
Jun 22, 202613$372.59$4.84K
Jun 18, 20267$353.32$2.47K
Jun 16, 202612$370.66$4.45K
Jun 8, 20262$294.81$589.62
Jun 4, 202615$322.50$4.84K
May 27, 202698$339.65$33.3K
May 22, 202619$323.79$6.15K
May 15, 20266,373$344.60$2.20M
May 13, 2026153$339.42$51.9K

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 AEIS by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 12, 202697,5310190,58851.2%
Nov 11, 2026135,077434257,13352.5%
Nov 10, 2026150,67046261,70457.6%
Nov 9, 2026222,73340366,80560.7%
Nov 6, 2026297,4882,587514,43857.8%
Nov 5, 2026237,4536,917620,61138.3%
Nov 4, 2026126,6891,299425,76529.8%
Nov 3, 2026215,53720518,98141.5%
Nov 2, 2026131,865300297,82544.3%
Oct 30, 202686,9100267,96732.4%
Oct 29, 202681,981382190,26543.1%
Oct 28, 2026143,7841254,20556.6%
Oct 27, 2026121,6390287,59242.3%
Oct 26, 202676,22174242,86931.4%
Oct 23, 202675,9454,691375,69120.2%
Oct 22, 2026148,77612,385456,39932.6%
Oct 21, 202673,14396211,11634.6%
Oct 20, 202696,11046247,33738.9%
Oct 19, 202681,016108211,10338.4%
Oct 16, 2026116,3940420,21727.7%
Oct 15, 2026140,132416407,88534.4%
Oct 14, 2026113,238209229,34249.4%
Oct 13, 202696,4530267,39736.1%
Oct 12, 202690,6620202,41244.8%
Oct 9, 202647,1700113,00941.7%
Oct 8, 202670,6180165,19242.7%
Oct 7, 2026106,92922223,06747.9%
Oct 6, 2026107,7921219,36449.1%
Oct 5, 202685,8130196,23343.7%
Oct 2, 2026101,4400209,81048.3%

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 AEIS
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,105,89041,334505,18515,30868.6%
Oct 12, 2026T11,089,14339,508552,55113,39666.3%
Oct 5, 2026T1691,00131,823318,13710,53968.5%
Sep 28, 2026T1594,38832,330381,36710,62760.9%
Sep 21, 2026T1807,40936,348385,28711,22367.7%
Sep 14, 2026T1828,63738,978928,39012,50947.2%
Sep 7, 2026T1596,06430,410291,05310,09167.2%
Aug 31, 2026T1762,53434,183380,83311,58466.7%
Aug 24, 2026T1977,18039,269409,34110,82970.5%
Aug 17, 2026T1696,53536,775373,06413,10065.1%
Aug 10, 2026T1698,23936,901243,55910,96274.1%
Aug 3, 2026T11,329,93255,331617,51515,74768.3%