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MACOM Technology Solutions Holdings, Inc.

MTSI
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001493594

In the last 90 days, MACOM Technology Solutions Holdings, Inc. insiders filed 0 open-market purchases and 6 sales; 662 institutions reported holding it in 13F filings for Q2 2026, worth $27.7B 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
2.85M
Shares, settlement Oct 30, 2026
Change
+120.3K
+4.4% vs. Oct 15, 2026
Days to cover
1.84
Short interest ÷ average daily volume
Average daily volume
1.55M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 3,521,224 sharesNov 15, 2024: 3,641,626 sharesNov 29, 2024: 3,174,589 sharesDec 13, 2024: 2,994,279 sharesDec 31, 2024: 2,450,559 sharesJan 15, 2025: 2,232,859 sharesJan 31, 2025: 2,173,197 sharesFeb 14, 2025: 2,282,721 sharesFeb 28, 2025: 1,942,780 sharesMar 14, 2025: 1,938,672 sharesMar 31, 2025: 1,966,558 sharesApr 15, 2025: 2,407,200 sharesApr 30, 2025: 2,405,851 sharesMay 15, 2025: 2,161,600 sharesMay 30, 2025: 2,544,271 sharesJun 13, 2025: 2,363,150 sharesJun 30, 2025: 2,534,357 sharesJul 15, 2025: 2,387,599 sharesJul 31, 2025: 2,311,450 sharesAug 15, 2025: 2,334,756 sharesAug 29, 2025: 2,514,867 sharesSep 15, 2025: 2,772,922 sharesSep 30, 2025: 3,274,003 sharesOct 15, 2025: 3,188,684 sharesOct 31, 2025: 3,406,100 sharesNov 14, 2025: 2,635,137 sharesNov 28, 2025: 2,521,956 sharesDec 15, 2025: 2,675,961 sharesDec 31, 2025: 2,813,746 sharesJan 15, 2026: 3,398,124 sharesJan 30, 2026: 3,484,591 sharesFeb 13, 2026: 3,239,731 sharesFeb 27, 2026: 3,166,270 sharesMar 13, 2026: 3,032,070 sharesMar 31, 2026: 3,246,738 sharesApr 15, 2026: 3,080,366 sharesApr 30, 2026: 2,847,360 sharesMay 15, 2026: 2,949,016 sharesMay 29, 2026: 2,333,131 sharesJun 15, 2026: 2,924,964 sharesJun 30, 2026: 2,766,623 sharesJul 15, 2026: 2,047,653 sharesJul 31, 2026: 2,511,695 sharesAug 14, 2026: 2,430,659 sharesAug 31, 2026: 2,964,911 sharesSep 15, 2026: 2,959,699 sharesSep 30, 2026: 3,404,387 sharesOct 15, 2026: 2,729,544 sharesOct 30, 2026: 2,849,821 shares
Short interest in MTSI by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20262.85M+120.3K+4.4%1.55M1.84
Oct 15, 20262.73M−674.8K−19.8%1.58M1.73
Sep 30, 20263.40M+444.7K+15.0%1.30M2.62
Sep 15, 20262.96M−5.21K−0.2%1.27M2.33
Aug 31, 20262.96M+534.3K+22.0%1.24M2.40
Aug 14, 20262.43M−81.0K−3.2%1.47M1.65
Jul 31, 20262.51M+464.0K+22.7%1.45M1.73
Jul 15, 20262.05M−719.0K−26.0%1.72M1.19
Jun 30, 20262.77M−158.3K−5.4%2.05M1.35
Jun 15, 20262.92M+591.8K+25.4%1.76M1.66
May 29, 20262.33M−615.9K−20.9%1.52M1.54
May 15, 20262.95M+101.7K+3.6%1.62M1.82
Apr 30, 20262.85M−233.0K−7.6%985.9K2.89
Apr 15, 20263.08M−166.4K−5.1%927.3K3.32
Mar 31, 20263.25M+214.7K+7.1%1.21M2.67
Mar 13, 20263.03M−134.2K−4.2%1.31M2.32
Feb 27, 20263.17M−73.5K−2.3%912.2K3.47
Feb 13, 20263.24M−244.9K−7.0%1.74M1.86
Jan 30, 20263.48M+86.5K+2.5%1.12M3.12
Jan 15, 20263.40M+584.4K+20.8%1.89M1.80
Dec 31, 20252.81M+137.8K+5.2%851.5K3.30
Dec 15, 20252.68M+154.0K+6.1%1.25M2.14
Nov 28, 20252.52M−113.2K−4.3%930.2K2.71
Nov 14, 20252.64M−771.0K−22.6%1.23M2.13
Oct 31, 20253.41M+217.4K+6.8%849.7K4.01
Oct 15, 20253.19M−85.3K−2.6%972.6K3.28
Sep 30, 20253.27M+501.1K+18.1%1.52M2.15
Sep 15, 20252.77M+258.1K+10.3%767.0K3.62
Aug 29, 20252.51M+180.1K+7.7%706.5K3.56
Aug 15, 20252.33M+23.3K+1.0%1.01M2.32
Jul 31, 20252.31M−76.1K−3.2%444.1K5.20
Jul 15, 20252.39M−146.8K−5.8%600.9K3.97
Jun 30, 20252.53M+171.2K+7.2%758.5K3.34
Jun 13, 20252.36M−181.1K−7.1%599.3K3.94
May 30, 20252.54M+382.7K+17.7%632.8K4.02
May 15, 20252.16M−244.3K−10.2%1.02M2.13
Apr 30, 20252.41M−1.35K−0.1%592.3K4.06
Apr 15, 20252.41M+440.6K+22.4%1.03M2.34
Mar 31, 20251.97M+27.9K+1.4%767.6K2.56
Mar 14, 20251.94M−4.11K−0.2%856.7K2.26
Feb 28, 20251.94M−339.9K−14.9%747.6K2.60
Feb 14, 20252.28M+109.5K+5.0%896.3K2.55
Jan 31, 20252.17M−59.7K−2.7%670.8K3.24
Jan 15, 20252.23M−217.7K−8.9%638.0K3.50
Dec 31, 20242.45M−543.7K−18.2%599.9K4.08
Dec 13, 20242.99M−180.3K−5.7%552.9K5.42
Nov 29, 20243.17M−467.0K−12.8%586.1K5.42
Nov 15, 20243.64M+120.4K+3.4%712.0K5.11
Oct 31, 20243.52M−147.1K−4.0%400.7K8.79

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 MTSI by settlement date
Settlement dateSharesPriceValue
Oct 9, 202676$322.21$24.5K
Sep 25, 202610$284.94$2.85K
Sep 21, 2026180$275.86$49.7K
Sep 15, 2026165$239.62$39.5K
Sep 14, 2026903$274.90$248.2K
Sep 8, 202662$268.95$16.7K
Sep 3, 2026633$257.56$163.0K
Sep 2, 20262,306$262.01$604.2K
Aug 14, 202673$307.06$22.4K
Aug 12, 20263,031$299.93$909.1K
Aug 7, 20269,543$301.64$2.88M
Jul 23, 20261$282.62$282.62
Jul 21, 20263,822$269.80$1.03M
Jul 17, 2026172$275.49$47.4K
Jun 25, 2026309$373.08$115.3K
Jun 23, 20262,088$396.26$827.4K
Jun 22, 20262,524$391.41$987.9K
Jun 12, 20261$374.76$374.76
Jun 11, 202625,886$354.40$9.17M
Jun 10, 202613,739$358.72$4.93M
Jun 8, 202656,550$345.40$19.5M
Jun 5, 202668$382.74$26.0K
Jun 3, 20261,479$382.35$565.5K
May 28, 20262,706$400.66$1.08M
May 19, 20261,260$356.25$448.9K
May 18, 20261,395$375.60$524.0K
May 5, 202670$291.72$20.4K
Apr 24, 2026421$284.40$119.7K
Apr 21, 2026698$281.08$196.2K
Mar 27, 20262,497$228.50$570.6K

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 MTSI by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026191,2418698,59227.4%
Nov 9, 2026411,487521,225,54633.6%
Nov 6, 2026310,07415,1961,012,64430.6%
Nov 5, 2026427,71511,2711,629,05726.3%
Nov 4, 2026408,83415,6541,197,00534.2%
Nov 3, 2026160,3547768,29420.9%
Nov 2, 2026228,3552,159824,75827.7%
Oct 30, 2026435,4784,439844,81751.5%
Oct 29, 2026154,87313404,10238.3%
Oct 28, 2026186,3485464,06340.2%
Oct 27, 2026184,60698650,25828.4%
Oct 26, 2026145,0050541,80326.8%
Oct 23, 2026148,70410,943447,06333.3%
Oct 22, 2026373,6458,637800,20746.7%
Oct 21, 2026151,0791351,81942.9%
Oct 20, 2026157,47724384,66540.9%
Oct 19, 2026175,428300525,21033.4%
Oct 16, 2026282,58616,257700,81840.3%
Oct 15, 2026264,6222,9711,113,38223.8%
Oct 14, 2026223,676238556,69840.2%
Oct 13, 2026158,2871621,66525.5%
Oct 12, 2026175,936102565,12331.1%
Oct 9, 2026133,6881,901314,02642.6%
Oct 8, 2026196,86534575,78834.2%
Oct 7, 2026253,23796491,58851.5%
Oct 6, 2026308,913137629,68549.1%
Oct 5, 2026223,43631429,97252.0%
Oct 2, 2026248,568136552,00945.0%
Oct 1, 2026226,243127450,11650.3%
Sep 30, 2026126,2835,895328,26238.5%

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 MTSI
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T11,995,44259,802688,77823,60174.3%
Oct 12, 2026T12,873,89672,6101,437,86025,67866.7%
Oct 5, 2026T11,943,55259,780950,05421,09767.2%
Sep 28, 2026T11,562,68441,218575,69120,00673.1%
Sep 21, 2026T11,584,34250,248695,10421,98169.5%
Sep 14, 2026T12,145,02851,2871,090,82323,73666.3%
Sep 7, 2026T11,680,56443,293818,87017,32867.2%
Aug 31, 2026T11,390,05344,001576,59714,21470.7%
Aug 24, 2026T11,756,40750,2011,030,49221,79763.0%
Aug 17, 2026T12,087,15457,560781,44420,09672.8%
Aug 10, 2026T11,730,16250,850547,37717,29176.0%
Aug 3, 2026T12,903,79570,0641,167,13526,08871.3%