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Twilio Inc

TWLO
Exchange
NYSE
Industry
Services-Prepackaged Software
SEC CIK
0001447669

In the last 90 days, Twilio Inc insiders filed 0 open-market purchases and 4 sales; 974 institutions reported holding it in 13F filings for Q2 2026, worth $28.5B 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
5.84M
Shares, settlement Oct 30, 2026
Change
−216.4K
−3.6% vs. Oct 15, 2026
Days to cover
1.92
Short interest ÷ average daily volume
Average daily volume
3.04M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 2,912,090 sharesNov 15, 2024: 4,126,689 sharesNov 29, 2024: 4,385,838 sharesDec 13, 2024: 4,967,388 sharesDec 31, 2024: 3,038,198 sharesJan 15, 2025: 3,079,765 sharesJan 31, 2025: 3,469,545 sharesFeb 14, 2025: 3,264,178 sharesFeb 28, 2025: 3,028,152 sharesMar 14, 2025: 3,111,226 sharesMar 31, 2025: 3,023,196 sharesApr 15, 2025: 3,563,704 sharesApr 30, 2025: 3,221,504 sharesMay 15, 2025: 4,327,595 sharesMay 30, 2025: 4,478,148 sharesJun 13, 2025: 4,613,775 sharesJun 30, 2025: 5,023,304 sharesJul 15, 2025: 5,031,499 sharesJul 31, 2025: 4,982,991 sharesAug 15, 2025: 7,322,558 sharesAug 29, 2025: 9,593,912 sharesSep 15, 2025: 9,487,083 sharesSep 30, 2025: 9,566,734 sharesOct 15, 2025: 6,326,252 sharesOct 31, 2025: 5,293,122 sharesNov 14, 2025: 5,592,534 sharesNov 28, 2025: 5,449,028 sharesDec 15, 2025: 4,444,359 sharesDec 31, 2025: 5,090,468 sharesJan 15, 2026: 5,937,212 sharesJan 30, 2026: 6,114,750 sharesFeb 13, 2026: 5,922,095 sharesFeb 27, 2026: 6,206,345 sharesMar 13, 2026: 5,627,420 sharesMar 31, 2026: 5,996,235 sharesApr 15, 2026: 6,464,389 sharesApr 30, 2026: 6,126,974 sharesMay 15, 2026: 6,073,633 sharesMay 29, 2026: 5,481,335 sharesJun 15, 2026: 5,557,243 sharesJun 30, 2026: 4,396,191 sharesJul 15, 2026: 4,212,905 sharesJul 31, 2026: 4,308,336 sharesAug 14, 2026: 4,210,074 sharesAug 31, 2026: 4,491,813 sharesSep 15, 2026: 5,406,382 sharesSep 30, 2026: 6,347,074 sharesOct 15, 2026: 6,051,947 sharesOct 30, 2026: 5,835,577 shares
Short interest in TWLO by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20265.84M−216.4K−3.6%3.04M1.92
Oct 15, 20266.05M−295.1K−4.7%5.55M1.09
Sep 30, 20266.35M+940.7K+17.4%3.32M1.91
Sep 15, 20265.41M+914.6K+20.4%1.56M3.47
Aug 31, 20264.49M+281.7K+6.7%1.93M2.32
Aug 14, 20264.21M−98.3K−2.3%3.44M1.23
Jul 31, 20264.31M+95.4K+2.3%1.58M2.73
Jul 15, 20264.21M−183.3K−4.2%1.76M2.40
Jun 30, 20264.40M−1.16M−20.9%2.35M1.87
Jun 15, 20265.56M+75.9K+1.4%3.04M1.83
May 29, 20265.48M−592.3K−9.8%2.55M2.15
May 15, 20266.07M−53.3K−0.9%3.52M1.73
Apr 30, 20266.13M−337.4K−5.2%2.49M2.46
Apr 15, 20266.46M+468.2K+7.8%2.46M2.62
Mar 31, 20266.00M+368.8K+6.6%1.66M3.62
Mar 13, 20265.63M−578.9K−9.3%1.73M3.24
Feb 27, 20266.21M+284.3K+4.8%2.60M2.39
Feb 13, 20265.92M−192.7K−3.2%3.90M1.52
Jan 30, 20266.11M+177.5K+3.0%2.41M2.54
Jan 15, 20265.94M+846.7K+16.6%2.31M2.57
Dec 31, 20255.09M+646.1K+14.5%2.11M2.42
Dec 15, 20254.44M−1.00M−18.4%2.11M2.10
Nov 28, 20255.45M−143.5K−2.6%1.95M2.79
Nov 14, 20255.59M+299.4K+5.7%1.90M2.94
Oct 31, 20255.29M−1.03M−16.3%2.60M2.03
Oct 15, 20256.33M−3.24M−33.9%2.88M2.20
Sep 30, 20259.57M+79.7K+0.8%2.79M3.42
Sep 15, 20259.49M−106.8K−1.1%2.43M3.91
Aug 29, 20259.59M+2.27M+31.0%5.35M1.79
Aug 15, 20257.32M+2.34M+47.0%6.27M1.17
Jul 31, 20254.98M−48.5K−1.0%2.45M2.04
Jul 15, 20255.03M+8.20K+0.2%2.59M1.95
Jun 30, 20255.02M+409.5K+8.9%1.87M2.69
Jun 13, 20254.61M+135.6K+3.0%2.08M2.22
May 30, 20254.48M+150.6K+3.5%2.44M1.83
May 15, 20254.33M+1.11M+34.3%3.58M1.21
Apr 30, 20253.22M−342.2K−9.6%2.40M1.34
Apr 15, 20253.56M+540.5K+17.9%2.60M1.37
Mar 31, 20253.02M−88.0K−2.8%1.64M1.84
Mar 14, 20253.11M+83.1K+2.7%3.20M1.00
Feb 28, 20253.03M−236.0K−7.2%3.73M1.00
Feb 14, 20253.26M−205.4K−5.9%4.06M1.00
Jan 31, 20253.47M+389.8K+12.7%5.28M1.00
Jan 15, 20253.08M+41.6K+1.4%1.97M1.57
Dec 31, 20243.04M−1.93M−38.8%2.69M1.13
Dec 13, 20244.97M+581.5K+13.3%2.28M2.18
Nov 29, 20244.39M+259.1K+6.3%2.77M1.58
Nov 15, 20244.13M+1.21M+41.7%4.05M1.02
Oct 31, 20242.91M−280.4K−8.8%2.27M1.29

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 TWLO by settlement date
Settlement dateSharesPriceValue
Oct 9, 20261,416$275.77$390.5K
Oct 8, 2026367$273.00$100.2K
Oct 6, 2026332,828$300.91$100.2M
Sep 30, 202695$290.78$27.6K
Sep 28, 2026248$275.80$68.4K
Sep 21, 2026500$243.84$121.9K
Sep 9, 20266,286$225.89$1.42M
Sep 8, 202610,810$232.98$2.52M
Sep 2, 20262,191$228.65$501.0K
Aug 31, 20269$237.78$2.14K
Aug 26, 20262,679$223.97$600.0K
Aug 24, 202620,468$225.30$4.61M
Aug 14, 202633$249.42$8.23K
Aug 12, 20261$255.95$255.95
Aug 7, 2026153$193.20$29.6K
Aug 4, 202639$196.59$7.67K
Jul 31, 2026166$190.94$31.7K
Jul 20, 2026100$206.78$20.7K
Jul 16, 20261$211.54$211.54
Jul 13, 2026996$214.56$213.7K
Jul 10, 2026200$218.60$43.7K
Jul 9, 20262,806$215.50$604.7K
Jul 8, 20261,633$211.97$346.1K
Jul 7, 20261$209.08$209.08
Jul 6, 2026289$209.31$60.5K
Jul 1, 2026144$206.33$29.7K
Jun 22, 20265,832$186.17$1.09M
Jun 15, 202652$204.08$10.6K
Jun 12, 2026190$206.62$39.3K
Jun 8, 20262,309$225.99$521.8K

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 TWLO by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 13, 2026564,506664743,64475.9%
Nov 12, 2026393,447153725,18854.3%
Nov 11, 2026432,909358680,51263.6%
Nov 10, 2026741,5411961,013,80973.1%
Nov 9, 2026388,743712635,23761.2%
Nov 6, 2026481,3372,197809,86659.4%
Nov 5, 2026810,48990,6151,662,61248.7%
Nov 4, 2026622,0811171,108,09556.1%
Nov 3, 2026803,3221111,376,90458.3%
Nov 2, 20261,391,51466,5021,985,98970.1%
Oct 30, 20262,115,47896,5403,557,07759.5%
Oct 29, 2026771,361151,845,91741.8%
Oct 28, 2026429,48831999,12043.0%
Oct 27, 2026375,421215817,50645.9%
Oct 26, 2026361,097110641,68556.3%
Oct 23, 2026545,8611,696870,01762.7%
Oct 22, 2026477,9511,8721,047,13745.6%
Oct 21, 2026361,831182774,97546.7%
Oct 20, 2026438,40221661,87966.2%
Oct 19, 2026892,44428,4581,450,65361.5%
Oct 16, 2026753,04634,8382,138,53935.2%
Oct 15, 2026392,001509862,64245.4%
Oct 14, 2026363,3413,259782,84346.4%
Oct 13, 2026322,689267633,65150.9%
Oct 12, 2026501,2651,243785,05363.9%
Oct 9, 2026669,8582611,197,84355.9%
Oct 8, 2026342,2002786,68143.5%
Oct 7, 2026662,2802,0321,516,51943.7%
Oct 6, 2026775,2641,7981,545,44450.2%
Oct 5, 2026844,11858,1211,518,15355.6%

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 TWLO
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T13,637,60172,8691,547,59437,79870.2%
Oct 12, 2026T13,783,76180,4971,963,02441,19965.8%
Oct 5, 2026T15,008,70396,26316,617,05644,91123.2%
Sep 28, 2026T15,021,01792,7593,205,58243,08661.0%
Sep 21, 2026T15,624,179111,0183,442,57664,34662.0%
Sep 14, 2026T13,185,96670,0832,233,16630,32258.8%
Sep 7, 2026T11,882,12254,328838,55819,68069.2%
Aug 31, 2026T12,211,52163,6831,200,28128,07664.8%
Aug 24, 2026T12,479,26559,3811,357,56228,62664.6%
Aug 17, 2026T13,037,33675,2212,589,75635,01354.0%
Aug 10, 2026T15,306,089111,4582,188,48144,31170.8%
Aug 3, 2026T16,622,890122,5833,032,85049,31568.6%