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Williams Companies, Inc.

WMB
Exchange
NYSE
Industry
Natural Gas Transmission
SEC CIK
0000107263

In the last 90 days, Williams Companies, Inc. insiders filed 0 open-market purchases and 4 sales; 1,843 institutions reported holding it in 13F filings for Q2 2026, worth $81.6B 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
29.8M
Shares, settlement Oct 30, 2026
Change
+3.14M
+11.8% vs. Oct 15, 2026
Days to cover
3.75
Short interest ÷ average daily volume
Average daily volume
7.94M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 17,666,574 sharesNov 15, 2024: 14,446,863 sharesNov 29, 2024: 14,560,154 sharesDec 13, 2024: 17,092,161 sharesDec 31, 2024: 17,879,736 sharesJan 15, 2025: 17,304,006 sharesJan 31, 2025: 17,328,487 sharesFeb 14, 2025: 18,012,217 sharesFeb 28, 2025: 16,845,026 sharesMar 14, 2025: 19,306,118 sharesMar 31, 2025: 21,043,893 sharesApr 15, 2025: 19,626,197 sharesApr 30, 2025: 19,625,011 sharesMay 15, 2025: 19,272,834 sharesMay 30, 2025: 16,983,240 sharesJun 13, 2025: 15,275,146 sharesJun 30, 2025: 14,224,373 sharesJul 15, 2025: 14,759,654 sharesJul 31, 2025: 14,308,607 sharesAug 15, 2025: 14,093,812 sharesAug 29, 2025: 12,394,289 sharesSep 15, 2025: 13,162,231 sharesSep 30, 2025: 15,068,946 sharesOct 15, 2025: 12,768,083 sharesOct 31, 2025: 13,587,073 sharesNov 14, 2025: 15,386,962 sharesNov 28, 2025: 12,965,940 sharesDec 15, 2025: 15,816,823 sharesDec 31, 2025: 15,590,303 sharesJan 15, 2026: 15,153,175 sharesJan 30, 2026: 16,268,250 sharesFeb 13, 2026: 15,330,610 sharesFeb 27, 2026: 14,235,285 sharesMar 13, 2026: 15,479,550 sharesMar 31, 2026: 16,133,449 sharesApr 15, 2026: 17,283,923 sharesApr 30, 2026: 18,622,444 sharesMay 15, 2026: 20,307,801 sharesMay 29, 2026: 21,683,353 sharesJun 15, 2026: 23,582,185 sharesJun 30, 2026: 24,517,221 sharesJul 15, 2026: 20,455,181 sharesJul 31, 2026: 26,476,801 sharesAug 14, 2026: 24,112,805 sharesAug 31, 2026: 26,153,338 sharesSep 15, 2026: 24,031,504 sharesSep 30, 2026: 27,173,947 sharesOct 15, 2026: 26,612,858 sharesOct 30, 2026: 29,752,577 shares
Short interest in WMB by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 202629.8M+3.14M+11.8%7.94M3.75
Oct 15, 202626.6M−561.1K−2.1%7.94M3.35
Sep 30, 202627.2M+3.14M+13.1%7.56M3.59
Sep 15, 202624.0M−2.12M−8.1%7.47M3.21
Aug 31, 202626.2M+2.04M+8.5%7.78M3.36
Aug 14, 202624.1M−2.36M−8.9%6.23M3.87
Jul 31, 202626.5M+6.02M+29.4%6.64M3.99
Jul 15, 202620.5M−4.06M−16.6%6.41M3.19
Jun 30, 202624.5M+935.0K+4.0%9.81M2.50
Jun 15, 202623.6M+1.90M+8.8%5.78M4.08
May 29, 202621.7M+1.38M+6.8%6.92M3.13
May 15, 202620.3M+1.69M+9.1%6.82M2.98
Apr 30, 202618.6M+1.34M+7.7%5.91M3.15
Apr 15, 202617.3M+1.15M+7.1%5.74M3.01
Mar 31, 202616.1M+653.9K+4.2%6.50M2.48
Mar 13, 202615.5M+1.24M+8.7%6.57M2.36
Feb 27, 202614.2M−1.10M−7.1%6.70M2.12
Feb 13, 202615.3M−937.6K−5.8%10.1M1.52
Jan 30, 202616.3M+1.12M+7.4%7.38M2.20
Jan 15, 202615.2M−437.1K−2.8%7.23M2.10
Dec 31, 202515.6M−226.5K−1.4%5.78M2.70
Dec 15, 202515.8M+2.85M+22.0%6.79M2.33
Nov 28, 202513.0M−2.42M−15.7%6.85M1.89
Nov 14, 202515.4M+1.80M+13.3%8.82M1.75
Oct 31, 202513.6M+819.0K+6.4%7.60M1.79
Oct 15, 202512.8M−2.30M−15.3%6.23M2.05
Sep 30, 202515.1M+1.91M+14.5%7.88M1.91
Sep 15, 202513.2M+767.9K+6.2%5.73M2.30
Aug 29, 202512.4M−1.70M−12.1%5.55M2.23
Aug 15, 202514.1M−214.8K−1.5%7.77M1.81
Jul 31, 202514.3M−451.0K−3.1%6.31M2.27
Jul 15, 202514.8M+535.3K+3.8%8.05M1.83
Jun 30, 202514.2M−1.05M−6.9%10.8M1.31
Jun 13, 202515.3M−1.71M−10.1%7.38M2.07
May 30, 202517.0M−2.29M−11.9%7.59M2.24
May 15, 202519.3M−352.2K−1.8%6.83M2.82
Apr 30, 202519.6M−1.19K0.0%5.65M3.47
Apr 15, 202519.6M−1.42M−6.7%10.2M1.92
Mar 31, 202521.0M+1.74M+9.0%7.12M2.96
Mar 14, 202519.3M+2.46M+14.6%8.26M2.34
Feb 28, 202516.8M−1.17M−6.5%8.12M2.07
Feb 14, 202518.0M+683.7K+4.0%7.48M2.41
Jan 31, 202517.3M+24.5K+0.1%8.40M2.06
Jan 15, 202517.3M−575.7K−3.2%6.95M2.49
Dec 31, 202417.9M+787.6K+4.6%6.60M2.71
Dec 13, 202417.1M+2.53M+17.4%7.85M2.18
Nov 29, 202414.6M+113.3K+0.8%7.23M2.01
Nov 15, 202414.4M−3.22M−18.2%6.34M2.28
Oct 31, 202417.7M−3.22M−15.4%5.58M3.17

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 WMB by settlement date
Settlement dateSharesPriceValue
Oct 2, 20264,034$69.22$279.2K
Sep 30, 202647$68.63$3.23K
Sep 29, 2026276$68.98$19.0K
Sep 17, 2026396$70.90$28.1K
Sep 8, 20262,092$74.15$155.1K
Aug 21, 202676$71.68$5.45K
Aug 17, 202645,009$75.20$3.38M
Aug 11, 20261,423$71.85$102.2K
Aug 5, 2026228$71.51$16.3K
Aug 4, 202631,891$70.43$2.25M
Jul 17, 20264$74.73$298.92
Jul 16, 2026654$74.38$48.6K
Jul 14, 202638$74.46$2.83K
Jul 7, 202625$72.82$1.82K
Jul 6, 202677,826$73.14$5.69M
Jul 1, 2026707$74.34$52.6K
Jun 30, 2026129,401$75.06$9.71M
Jun 26, 20262$77.53$155.06
Jun 25, 20261$75.87$75.87
Jun 18, 202613$71.25$926.25
Jun 12, 2026372$71.62$26.6K
Jun 11, 202659$72.26$4.26K
May 29, 202632,276$73.13$2.36M
May 27, 2026116,155$76.34$8.87M
May 26, 202629,466$78.47$2.31M
May 18, 20266,522$77.72$506.9K
May 8, 20264$72.95$291.8
May 4, 2026420$75.54$31.7K
Apr 15, 20269$71.44$642.96
Apr 6, 202635$72.00$2.52K

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 WMB by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 20261,287,2877,5244,487,92128.7%
Nov 9, 20261,056,6006,7903,180,45933.2%
Nov 6, 2026705,7646,9773,497,19320.2%
Nov 5, 20261,807,2887,4197,187,03625.1%
Nov 4, 20262,602,7489,2888,800,90429.6%
Nov 3, 20261,835,7077664,316,79642.5%
Nov 2, 20261,328,3172,4183,728,29635.6%
Oct 30, 20261,031,12732,690,58238.3%
Oct 29, 2026967,728582,432,06739.8%
Oct 28, 20261,404,7929,0662,961,90947.4%
Oct 27, 20262,165,0867,3884,737,36645.7%
Oct 26, 2026665,08715,8331,731,09038.4%
Oct 23, 2026708,71711,0842,400,28229.5%
Oct 22, 20261,344,3555,8113,277,97541.0%
Oct 21, 20261,051,3534392,850,60336.9%
Oct 20, 20261,048,1342,0872,793,97437.5%
Oct 19, 2026714,7484892,094,01734.1%
Oct 16, 2026800,8678003,661,82421.9%
Oct 15, 20262,091,97513,8914,816,01743.4%
Oct 14, 20262,864,7086,4754,459,17864.2%
Oct 13, 2026750,739902,550,34529.4%
Oct 12, 20262,144,6241,1483,308,33064.8%
Oct 9, 20261,447,8248,8773,260,11844.4%
Oct 8, 20261,850,3128,2023,689,01350.2%
Oct 7, 2026612,6254,8121,873,31732.7%
Oct 6, 2026785,677931,964,64440.0%
Oct 5, 2026658,57617,2531,469,02644.8%
Oct 2, 2026987,22725,8312,352,58742.0%
Oct 1, 2026997,9487,4422,591,86338.5%
Sep 30, 2026867,2434,8552,780,53331.2%

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 WMB
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T19,488,701138,7166,624,00242,72258.9%
Oct 12, 2026T111,678,016149,6358,725,03541,09757.2%
Oct 5, 2026T17,553,917119,2416,802,35540,01252.6%
Sep 28, 2026T18,284,784122,1176,677,45242,66055.4%
Sep 21, 2026T16,101,456114,6444,015,91038,71460.3%
Sep 14, 2026T19,497,226151,91012,721,93645,28842.7%
Sep 7, 2026T16,771,232115,1124,286,29239,27561.2%
Aug 31, 2026T18,689,200141,24611,708,28740,95542.6%
Aug 24, 2026T18,815,660142,5084,861,17842,49764.5%
Aug 17, 2026T17,474,101140,2126,106,45740,70855.0%
Aug 10, 2026T14,409,31596,0784,253,59135,56850.9%
Aug 3, 2026T110,000,865154,3876,013,87144,15262.4%