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Automatic Data Processing Inc

ADP
Exchange
Nasdaq
Industry
Services-Computer Processing & Data Preparation
SEC CIK
0000008670

In the last 90 days, Automatic Data Processing Inc insiders filed 0 open-market purchases and 14 sales; 2,302 institutions reported holding it in 13F filings for Q2 2026, worth $79.3B in total; superinvestors Fundsmith and Giverny Capital hold 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
9.53M
Shares, settlement Oct 30, 2026
Change
−661.8K
−6.5% vs. Oct 15, 2026
Days to cover
3.93
Short interest ÷ average daily volume
Average daily volume
2.42M
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 6,505,108 sharesNov 15, 2024: 5,207,532 sharesNov 29, 2024: 5,492,813 sharesDec 13, 2024: 6,076,647 sharesDec 31, 2024: 6,121,416 sharesJan 15, 2025: 5,448,100 sharesJan 31, 2025: 5,806,068 sharesFeb 14, 2025: 6,630,329 sharesFeb 28, 2025: 6,195,804 sharesMar 14, 2025: 5,639,486 sharesMar 31, 2025: 5,802,232 sharesApr 15, 2025: 6,311,280 sharesApr 30, 2025: 6,060,678 sharesMay 15, 2025: 6,153,330 sharesMay 30, 2025: 5,120,779 sharesJun 13, 2025: 4,927,366 sharesJun 30, 2025: 4,651,222 sharesJul 15, 2025: 5,082,638 sharesJul 31, 2025: 5,163,320 sharesAug 15, 2025: 6,178,487 sharesAug 29, 2025: 6,377,916 sharesSep 15, 2025: 7,128,044 sharesSep 30, 2025: 8,630,985 sharesOct 15, 2025: 7,882,546 sharesOct 31, 2025: 7,423,501 sharesNov 14, 2025: 7,467,952 sharesNov 28, 2025: 7,624,972 sharesDec 15, 2025: 7,618,073 sharesDec 31, 2025: 6,954,562 sharesJan 15, 2026: 7,377,784 sharesJan 30, 2026: 8,901,390 sharesFeb 13, 2026: 9,979,809 sharesFeb 27, 2026: 10,524,424 sharesMar 13, 2026: 12,423,011 sharesMar 31, 2026: 14,031,257 sharesApr 15, 2026: 14,023,096 sharesApr 30, 2026: 13,721,434 sharesMay 15, 2026: 16,460,942 sharesMay 29, 2026: 15,328,126 sharesJun 15, 2026: 15,982,286 sharesJun 30, 2026: 14,867,435 sharesJul 15, 2026: 14,436,618 sharesJul 31, 2026: 13,142,205 sharesAug 14, 2026: 11,138,012 sharesAug 31, 2026: 10,777,426 sharesSep 15, 2026: 10,508,337 sharesSep 30, 2026: 10,950,800 sharesOct 15, 2026: 10,187,703 sharesOct 30, 2026: 9,525,870 shares
Short interest in ADP by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20269.53M−661.8K−6.5%2.42M3.93
Oct 15, 202610.2M−763.1K−7.0%1.61M6.32
Sep 30, 202611.0M+442.5K+4.2%2.48M4.42
Sep 15, 202610.5M−269.1K−2.5%2.00M5.26
Aug 31, 202610.8M−360.6K−3.2%2.10M5.14
Aug 14, 202611.1M−2.00M−15.3%2.15M5.17
Jul 31, 202613.1M−1.29M−9.0%2.65M4.96
Jul 15, 202614.4M−430.8K−2.9%2.09M6.92
Jun 30, 202614.9M−1.11M−7.0%3.64M4.09
Jun 15, 202616.0M+654.2K+4.3%2.58M6.20
May 29, 202615.3M−1.13M−6.9%2.62M5.85
May 15, 202616.5M+2.74M+20.0%2.84M5.81
Apr 30, 202613.7M−301.7K−2.2%3.17M4.33
Apr 15, 202614.0M−8.16K−0.1%2.79M5.02
Mar 31, 202614.0M+1.61M+13.0%4.56M3.07
Mar 13, 202612.4M+1.90M+18.0%3.77M3.30
Feb 27, 202610.5M+544.6K+5.5%3.88M2.71
Feb 13, 20269.98M+1.08M+12.1%4.02M2.48
Jan 30, 20268.90M+1.52M+20.7%2.81M3.17
Jan 15, 20267.38M+423.2K+6.1%1.84M4.02
Dec 31, 20256.95M−663.5K−8.7%2.48M2.80
Dec 15, 20257.62M−6.90K−0.1%2.47M3.09
Nov 28, 20257.62M+157.0K+2.1%2.07M3.68
Nov 14, 20257.47M+44.5K+0.6%2.13M3.50
Oct 31, 20257.42M−459.0K−5.8%1.89M3.94
Oct 15, 20257.88M−748.4K−8.7%1.69M4.66
Sep 30, 20258.63M+1.50M+21.1%2.49M3.47
Sep 15, 20257.13M+750.1K+11.8%1.58M4.50
Aug 29, 20256.38M+199.4K+3.2%1.37M4.66
Aug 15, 20256.18M+1.02M+19.7%1.51M4.09
Jul 31, 20255.16M+80.7K+1.6%1.50M3.43
Jul 15, 20255.08M+431.4K+9.3%1.37M3.72
Jun 30, 20254.65M−276.1K−5.6%2.10M2.22
Jun 13, 20254.93M−193.4K−3.8%1.58M3.12
May 30, 20255.12M−1.03M−16.8%1.48M3.45
May 15, 20256.15M+92.7K+1.5%1.39M4.41
Apr 30, 20256.06M−250.6K−4.0%1.84M3.29
Apr 15, 20256.31M+509.0K+8.8%2.45M2.57
Mar 31, 20255.80M+162.7K+2.9%1.85M3.13
Mar 14, 20255.64M−556.3K−9.0%2.37M2.38
Feb 28, 20256.20M−434.5K−6.6%1.65M3.74
Feb 14, 20256.63M+824.3K+14.2%1.40M4.73
Jan 31, 20255.81M+358.0K+6.6%1.81M3.20
Jan 15, 20255.45M−673.3K−11.0%1.62M3.37
Dec 31, 20246.12M+44.8K+0.7%1.86M3.29
Dec 13, 20246.08M+583.8K+10.6%1.93M3.15
Nov 29, 20245.49M+285.3K+5.5%1.60M3.43
Nov 15, 20245.21M−1.30M−20.0%1.58M3.30
Oct 31, 20246.51M−30.9K−0.5%1.72M3.78

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 ADP by settlement date
Settlement dateSharesPriceValue
Oct 13, 202616,208$273.81$4.44M
Oct 5, 202619$257.68$4.90K
Oct 2, 20261,664$263.96$439.2K
Sep 21, 2026100$271.22$27.1K
Sep 11, 20261,861$267.33$497.5K
Sep 8, 2026374$277.62$103.8K
Aug 28, 2026364$284.68$103.6K
Aug 27, 2026239$281.39$67.3K
Aug 25, 20261,120$283.01$317.0K
Aug 24, 20263,021$280.81$848.3K
Aug 12, 202626,637$271.09$7.22M
Aug 11, 202680$273.68$21.9K
Aug 10, 2026362$271.32$98.2K
Aug 7, 202698$273.51$26.8K
Aug 5, 2026426$270.62$115.3K
Aug 3, 2026550$266.46$146.6K
Jul 31, 202610,180$263.87$2.69M
Jul 30, 20261,270$273.37$347.2K
Jul 29, 202686$264.17$22.7K
Jul 28, 202680$254.98$20.4K
Jul 27, 2026186$250.09$46.5K
Jul 21, 2026273$255.24$69.7K
Jul 20, 20261,598$255.27$407.9K
Jul 16, 202610,076$247.47$2.49M
Jul 14, 2026524$251.05$131.6K
Jul 13, 20263,247$241.92$785.5K
Jul 10, 2026183$241.28$44.2K
Jul 9, 20261,083$241.37$261.4K
Jul 8, 20261$245.60$245.6
Jul 7, 2026969$239.49$232.1K

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 ADP by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 10, 2026351,157111513,06868.4%
Nov 9, 2026401,530323698,85957.5%
Nov 6, 2026556,118196757,54373.4%
Nov 5, 2026702,4613371,029,36468.2%
Nov 4, 2026505,3062,1871,055,45747.9%
Nov 3, 2026286,4772,231473,40160.5%
Nov 2, 2026349,633109602,10058.1%
Oct 30, 2026647,174495891,25472.6%
Oct 29, 2026442,98693665,50866.6%
Oct 28, 2026512,26621803,66463.7%
Oct 27, 2026443,4931,219781,30956.8%
Oct 26, 2026402,055126700,84657.4%
Oct 23, 2026362,813197593,95061.1%
Oct 22, 2026554,586961,090,60850.9%
Oct 21, 2026368,898667622,13359.3%
Oct 20, 2026515,25685739,20369.7%
Oct 19, 2026237,890240360,13166.1%
Oct 16, 2026290,372419632,62945.9%
Oct 15, 2026353,633622624,33556.6%
Oct 14, 2026330,2790589,35056.0%
Oct 13, 2026265,571124417,32663.6%
Oct 12, 2026224,237221344,54065.1%
Oct 9, 2026211,377104341,80761.8%
Oct 8, 2026360,963271599,18360.2%
Oct 7, 2026311,509587504,83261.7%
Oct 6, 2026340,8682,264495,66168.8%
Oct 5, 2026303,164754468,46664.7%
Oct 2, 2026308,45185523,50858.9%
Oct 1, 2026274,25413486,80256.3%
Sep 30, 2026342,9731,500683,64550.2%

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 ADP
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T12,700,93278,6221,553,84934,36863.5%
Oct 12, 2026T12,073,74067,6981,253,85327,81362.3%
Oct 5, 2026T11,804,41059,1441,533,44926,89154.1%
Sep 28, 2026T12,056,69762,4662,226,08730,43448.0%
Sep 21, 2026T12,591,31971,2722,037,35030,11556.0%
Sep 14, 2026T12,805,09469,5042,882,59628,85849.3%
Sep 7, 2026T11,871,72255,0981,453,85324,95856.3%
Aug 31, 2026T11,999,46967,8462,975,57031,85440.2%
Aug 24, 2026T12,109,72370,3172,698,13229,15743.9%
Aug 17, 2026T12,979,84377,6362,325,02029,84656.2%
Aug 10, 2026T12,919,19478,7671,133,73426,99572.0%
Aug 3, 2026T13,175,36690,8271,935,43831,22562.1%