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Livermore
Livermore
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Lam Research Corp

LRCX
Exchange
Nasdaq
Industry
Special Industry Machinery, NEC
SEC CIK
0000707549

In the last 90 days, Lam Research Corp insiders filed 0 open-market purchases and 7 sales; 3,158 institutions reported holding it in 13F filings for Q2 2026, worth $463.5B in total; 6 superinvestors hold it, including Coatue Management and Tiger Global Management.

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
27.5M
Shares, settlement Oct 30, 2026
Change
−823.3K
−2.9% vs. Oct 15, 2026
Days to cover
2.17
Short interest ÷ average daily volume
Average daily volume
12.7M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 32,548,196 sharesNov 15, 2024: 32,289,441 sharesNov 29, 2024: 33,697,874 sharesDec 13, 2024: 31,838,317 sharesDec 31, 2024: 34,064,980 sharesJan 15, 2025: 37,412,627 sharesJan 31, 2025: 33,728,847 sharesFeb 14, 2025: 29,017,235 sharesFeb 28, 2025: 24,858,206 sharesMar 14, 2025: 25,562,304 sharesMar 31, 2025: 23,652,542 sharesApr 15, 2025: 23,410,728 sharesApr 30, 2025: 23,466,703 sharesMay 15, 2025: 27,588,511 sharesMay 30, 2025: 24,945,948 sharesJun 13, 2025: 24,908,632 sharesJun 30, 2025: 30,705,854 sharesJul 15, 2025: 30,176,318 sharesJul 31, 2025: 28,832,070 sharesAug 15, 2025: 34,143,124 sharesAug 29, 2025: 31,630,878 sharesSep 15, 2025: 31,121,222 sharesSep 30, 2025: 29,737,626 sharesOct 15, 2025: 32,402,751 sharesOct 31, 2025: 33,328,175 sharesNov 14, 2025: 33,152,875 sharesNov 28, 2025: 34,097,668 sharesDec 15, 2025: 32,838,316 sharesDec 31, 2025: 33,124,018 sharesJan 15, 2026: 31,244,667 sharesJan 30, 2026: 30,563,220 sharesFeb 13, 2026: 32,943,284 sharesFeb 27, 2026: 26,107,698 sharesMar 13, 2026: 26,933,774 sharesMar 31, 2026: 27,966,572 sharesApr 15, 2026: 26,059,416 sharesApr 30, 2026: 28,556,454 sharesMay 15, 2026: 32,918,359 sharesMay 29, 2026: 32,072,543 sharesJun 15, 2026: 29,877,317 sharesJun 30, 2026: 28,314,664 sharesJul 15, 2026: 29,520,485 sharesJul 31, 2026: 26,963,996 sharesAug 14, 2026: 28,419,138 sharesAug 31, 2026: 27,751,158 sharesSep 15, 2026: 26,081,081 sharesSep 30, 2026: 25,810,795 sharesOct 15, 2026: 28,325,154 sharesOct 30, 2026: 27,501,835 shares
Short interest in LRCX by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 202627.5M−823.3K−2.9%12.7M2.17
Oct 15, 202628.3M+2.51M+9.7%7.89M3.59
Sep 30, 202625.8M−270.3K−1.0%9.84M2.62
Sep 15, 202626.1M−1.67M−6.0%8.46M3.08
Aug 31, 202627.8M−668.0K−2.4%7.31M3.79
Aug 14, 202628.4M+1.46M+5.4%8.68M3.27
Jul 31, 202627.0M−2.56M−8.7%12.2M2.22
Jul 15, 202629.5M+1.21M+4.3%12.3M2.41
Jun 30, 202628.3M−1.56M−5.2%15.4M1.84
Jun 15, 202629.9M−2.20M−6.8%11.2M2.67
May 29, 202632.1M−845.8K−2.6%8.81M3.64
May 15, 202632.9M+4.36M+15.3%9.27M3.55
Apr 30, 202628.6M+2.50M+9.6%9.35M3.05
Apr 15, 202626.1M−1.91M−6.8%8.58M3.04
Mar 31, 202628.0M+1.03M+3.8%11.5M2.44
Mar 13, 202626.9M+826.1K+3.2%10.4M2.59
Feb 27, 202626.1M−6.84M−20.8%8.70M3.00
Feb 13, 202632.9M+2.38M+7.8%11.7M2.80
Jan 30, 202630.6M−681.4K−2.2%13.2M2.32
Jan 15, 202631.2M−1.88M−5.7%14.7M2.12
Dec 31, 202533.1M+285.7K+0.9%10.4M3.17
Dec 15, 202532.8M−1.26M−3.7%9.37M3.51
Nov 28, 202534.1M+944.8K+2.9%11.8M2.88
Nov 14, 202533.2M−175.3K−0.5%10.6M3.11
Oct 31, 202533.3M+925.4K+2.9%10.8M3.08
Oct 15, 202532.4M+2.67M+9.0%12.5M2.59
Sep 30, 202529.7M−1.38M−4.5%12.3M2.41
Sep 15, 202531.1M−509.7K−1.6%11.0M2.82
Aug 29, 202531.6M−2.51M−7.4%10.4M3.03
Aug 15, 202534.1M+5.31M+18.4%12.3M2.78
Jul 31, 202528.8M−1.34M−4.5%11.5M2.50
Jul 15, 202530.2M−529.5K−1.7%8.42M3.59
Jun 30, 202530.7M+5.80M+23.3%11.6M2.65
Jun 13, 202524.9M−37.3K−0.2%9.63M2.59
May 30, 202524.9M−2.64M−9.6%9.44M2.64
May 15, 202527.6M+4.12M+17.6%10.4M2.64
Apr 30, 202523.5M+56.0K+0.2%13.1M1.78
Apr 15, 202523.4M−241.8K−1.0%17.6M1.33
Mar 31, 202523.7M−1.91M−7.5%9.80M2.41
Mar 14, 202525.6M+704.1K+2.8%13.5M1.89
Feb 28, 202524.9M−4.16M−14.3%15.6M1.59
Feb 14, 202529.0M−4.71M−14.0%10.1M2.87
Jan 31, 202533.7M−3.68M−9.9%15.1M2.24
Jan 15, 202537.4M+3.35M+9.8%10.2M3.68
Dec 31, 202434.1M+2.23M+7.0%12.2M2.80
Dec 13, 202431.8M−1.86M−5.5%11.5M2.78
Nov 29, 202433.7M+1.41M+4.4%10.3M3.27
Nov 15, 202432.3M−258.8K−0.8%10.5M3.07
Oct 31, 202432.5M+3.21M+11.0%15.8M2.07

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 LRCX by settlement date
Settlement dateSharesPriceValue
Oct 9, 2026910$320.59$291.7K
Oct 8, 2026363$329.51$119.6K
Oct 7, 2026646$333.89$215.7K
Oct 5, 20261,140$347.49$396.1K
Sep 28, 20261,208$315.21$380.8K
Sep 23, 202613,915$310.96$4.33M
Sep 22, 20263,005$302.28$908.4K
Sep 8, 2026400$307.65$123.1K
Sep 2, 202666,324$290.20$19.2M
Aug 31, 20265,204$301.90$1.57M
Aug 28, 20262,613$318.58$832.4K
Aug 19, 20265,225$327.92$1.71M
Aug 17, 2026500$332.36$166.2K
Aug 12, 20262,883$311.41$897.8K
Aug 10, 2026200$311.35$62.3K
Aug 7, 202611,765$305.77$3.60M
Aug 6, 2026962$307.42$295.7K
Aug 4, 20262,588$294.61$762.5K
Jul 29, 202639,141$269.61$10.6M
Jul 21, 2026245$306.76$75.2K
Jul 7, 20266$350.20$2.10K
Jun 25, 20262,457$374.80$920.9K
Jun 22, 202623,600$389.04$9.18M
Jun 18, 20261,613$374.18$603.6K
Jun 17, 202620,710$369.34$7.65M
Jun 15, 2026500$366.81$183.4K
Jun 11, 20261$321.80$321.8
Jun 8, 20261,000$303.28$303.3K
Jun 5, 202668,124$336.41$22.9M
May 27, 20262$322.68$645.36

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 LRCX by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 20262,059,7596,5194,050,35350.9%
Nov 9, 20261,756,4252,5145,692,13730.9%
Nov 6, 20262,688,618192,4917,215,09937.3%
Nov 5, 20263,535,599100,70111,105,36131.8%
Nov 4, 20261,894,9333,4115,148,39136.8%
Nov 3, 2026680,03711,0543,447,78619.7%
Nov 2, 20261,034,8897,9343,939,73526.3%
Oct 30, 20262,450,8207,3205,692,59143.1%
Oct 29, 20261,094,1111,0983,838,14328.5%
Oct 28, 20261,686,1457,4184,076,34641.4%
Oct 27, 20261,150,7205,3883,866,55129.8%
Oct 26, 2026984,4251,7083,706,42226.6%
Oct 23, 20261,213,96189,5354,873,07824.9%
Oct 22, 20263,445,234206,9449,306,80337.0%
Oct 21, 20262,584,2229915,388,07548.0%
Oct 20, 2026999,3623,9043,353,86929.8%
Oct 19, 20261,107,4481,4933,520,82831.5%
Oct 16, 20261,514,3003,6073,680,83241.1%
Oct 15, 20261,896,3062,5725,227,98736.3%
Oct 14, 20261,269,0231,1743,291,31738.6%
Oct 13, 20261,241,9961,5753,040,03740.9%
Oct 12, 2026575,8968712,003,85528.7%
Oct 9, 2026853,6362,2761,837,94546.4%
Oct 8, 20261,737,3321,6893,514,94549.4%
Oct 7, 20261,104,3733,7032,275,45048.5%
Oct 6, 20261,507,0732,5503,058,90149.3%
Oct 5, 20261,100,1195122,326,80947.3%
Oct 2, 20261,649,8796362,871,54457.5%
Oct 1, 20261,806,2921,5783,226,44056.0%
Sep 30, 20261,334,1394,6962,669,17950.0%

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 LRCX
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T117,352,420281,91612,352,894233,42258.4%
Oct 12, 2026T112,358,743212,8117,519,074168,62062.2%
Oct 5, 2026T19,241,739189,5315,602,906140,48662.3%
Sep 28, 2026T110,666,678201,0217,360,446143,98059.2%
Sep 21, 2026T19,860,421196,00410,586,563141,09048.2%
Sep 14, 2026T110,953,286208,50616,098,956171,80440.5%
Sep 7, 2026T17,024,623152,29110,177,871107,57940.8%
Aug 31, 2026T18,545,133165,5065,894,916145,34559.2%
Aug 24, 2026T17,989,104156,5375,163,899104,96060.7%
Aug 17, 2026T110,120,866212,2589,151,181137,18952.5%
Aug 10, 2026T19,060,545189,5517,345,660132,56955.2%
Aug 3, 2026T112,477,183228,4228,821,392140,63058.6%