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Appfolio Inc

APPF
Exchange
Nasdaq
Industry
Services-Prepackaged Software
SEC CIK
0001433195

In the last 90 days, Appfolio Inc insiders filed 0 open-market purchases and 10 sales; 397 institutions reported holding it in 13F filings for Q2 2026, worth $3.77B 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
2.53M
Shares, settlement Oct 30, 2026
Change
−144.6K
−5.4% vs. Oct 15, 2026
Days to cover
5.80
Short interest ÷ average daily volume
Average daily volume
437.0K
Shares, as reported by FINRA
Short interest by settlement date
Oct 31, 2024: 532,753 sharesNov 15, 2024: 555,053 sharesNov 29, 2024: 531,280 sharesDec 13, 2024: 514,864 sharesDec 31, 2024: 485,289 sharesJan 15, 2025: 392,304 sharesJan 31, 2025: 707,851 sharesFeb 14, 2025: 840,054 sharesFeb 28, 2025: 926,203 sharesMar 14, 2025: 997,935 sharesMar 31, 2025: 1,241,691 sharesApr 15, 2025: 1,050,987 sharesApr 30, 2025: 1,281,178 sharesMay 15, 2025: 1,196,182 sharesMay 30, 2025: 1,216,835 sharesJun 13, 2025: 1,412,378 sharesJun 30, 2025: 1,332,652 sharesJul 15, 2025: 1,348,865 sharesJul 31, 2025: 1,334,509 sharesAug 15, 2025: 1,084,697 sharesAug 29, 2025: 1,098,258 sharesSep 15, 2025: 1,077,716 sharesSep 30, 2025: 1,110,895 sharesOct 15, 2025: 1,039,802 sharesOct 31, 2025: 1,211,896 sharesNov 14, 2025: 1,322,343 sharesNov 28, 2025: 1,383,755 sharesDec 15, 2025: 1,327,181 sharesDec 31, 2025: 1,416,851 sharesJan 15, 2026: 1,327,815 sharesJan 30, 2026: 1,324,405 sharesFeb 13, 2026: 1,925,861 sharesFeb 27, 2026: 1,920,352 sharesMar 13, 2026: 2,085,396 sharesMar 31, 2026: 2,221,090 sharesApr 15, 2026: 2,327,362 sharesApr 30, 2026: 2,512,842 sharesMay 15, 2026: 2,719,541 sharesMay 29, 2026: 2,727,149 sharesJun 15, 2026: 2,603,937 sharesJun 30, 2026: 2,616,511 sharesJul 15, 2026: 2,714,217 sharesJul 31, 2026: 2,522,618 sharesAug 14, 2026: 2,359,430 sharesAug 31, 2026: 2,365,828 sharesSep 15, 2026: 2,340,047 sharesSep 30, 2026: 2,441,935 sharesOct 15, 2026: 2,677,129 sharesOct 30, 2026: 2,532,525 shares
Short interest in APPF by settlement date
Settlement dateShort interestChangeChange %Avg. daily volumeDays to cover
Oct 30, 20262.53M−144.6K−5.4%437.0K5.80
Oct 15, 20262.68M+235.2K+9.6%378.1K7.08
Sep 30, 20262.44M+101.9K+4.4%282.2K8.65
Sep 15, 20262.34M−25.8K−1.1%286.1K8.18
Aug 31, 20262.37M+6.40K+0.3%358.9K6.59
Aug 14, 20262.36M−163.2K−6.5%453.2K5.21
Jul 31, 20262.52M−191.6K−7.1%457.2K5.52
Jul 15, 20262.71M+97.7K+3.7%325.5K8.34
Jun 30, 20262.62M+12.6K+0.5%414.1K6.32
Jun 15, 20262.60M−123.2K−4.5%375.6K6.93
May 29, 20262.73M+7.61K+0.3%375.3K7.27
May 15, 20262.72M+206.7K+8.2%303.9K8.95
Apr 30, 20262.51M+185.5K+8.0%392.9K6.40
Apr 15, 20262.33M+106.3K+4.8%294.7K7.90
Mar 31, 20262.22M+135.7K+6.5%398.8K5.57
Mar 13, 20262.09M+165.0K+8.6%340.6K6.12
Feb 27, 20261.92M−5.51K−0.3%418.9K4.58
Feb 13, 20261.93M+601.5K+45.4%524.7K3.67
Jan 30, 20261.32M−3.41K−0.3%434.3K3.05
Jan 15, 20261.33M−89.0K−6.3%308.3K4.31
Dec 31, 20251.42M+89.7K+6.8%166.0K8.53
Dec 15, 20251.33M−56.6K−4.1%212.0K6.26
Nov 28, 20251.38M+61.4K+4.6%211.7K6.54
Nov 14, 20251.32M+110.4K+9.1%274.9K4.81
Oct 31, 20251.21M+172.1K+16.6%325.6K3.72
Oct 15, 20251.04M−71.1K−6.4%324.9K3.20
Sep 30, 20251.11M+33.2K+3.1%195.9K5.67
Sep 15, 20251.08M−20.5K−1.9%227.1K4.74
Aug 29, 20251.10M+13.6K+1.3%264.6K4.15
Aug 15, 20251.08M−249.8K−18.7%537.9K2.02
Jul 31, 20251.33M−14.4K−1.1%268.3K4.97
Jul 15, 20251.35M+16.2K+1.2%235.5K5.73
Jun 30, 20251.33M−79.7K−5.6%280.3K4.75
Jun 13, 20251.41M+195.5K+16.1%298.0K4.74
May 30, 20251.22M+20.7K+1.7%209.9K5.80
May 15, 20251.20M−85.0K−6.6%266.8K4.48
Apr 30, 20251.28M+230.2K+21.9%471.7K2.72
Apr 15, 20251.05M−190.7K−15.4%352.2K2.98
Mar 31, 20251.24M+243.8K+24.4%279.7K4.44
Mar 14, 2025997.9K+71.7K+7.7%365.2K2.73
Feb 28, 2025926.2K+86.1K+10.3%300.4K3.08
Feb 14, 2025840.1K+132.2K+18.7%298.5K2.81
Jan 31, 2025707.9K+315.5K+80.4%333.4K2.12
Jan 15, 2025392.3K−93.0K−19.2%214.4K1.83
Dec 31, 2024485.3K−29.6K−5.7%170.5K2.85
Dec 13, 2024514.9K−16.4K−3.1%191.5K2.69
Nov 29, 2024531.3K−23.8K−4.3%155.9K3.41
Nov 15, 2024555.1K+22.3K+4.2%191.6K2.90
Oct 31, 2024532.8K−34.9K−6.2%343.9K1.55

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 APPF by settlement date
Settlement dateSharesPriceValue
Oct 9, 202670$197.45$13.8K
Oct 8, 202618$196.97$3.55K
Oct 6, 2026846$204.25$172.8K
Oct 1, 20263,183$200.52$638.3K
Sep 25, 2026235$204.43$48.0K
Sep 16, 202620$225.95$4.52K
Sep 9, 20261$206.02$206.02
Sep 2, 202676$225.28$17.1K
Aug 27, 202624$223.18$5.36K
Aug 26, 202661,518$223.05$13.7M
Aug 24, 202610,938$224.40$2.45M
Aug 21, 20269$218.85$1.97K
Aug 20, 2026129$215.22$27.8K
Aug 18, 2026123$195.97$24.1K
Aug 7, 20261,991$194.11$386.5K
Aug 4, 2026420$191.69$80.5K
Jul 20, 202664$179.73$11.5K
Jul 13, 2026869$175.58$152.6K
Jul 10, 2026869$175.31$152.3K
Jul 9, 2026411$176.48$72.5K
Jul 8, 2026269$179.42$48.3K
Jun 30, 20265,078$156.57$795.1K
Jun 29, 20261,573$155.64$244.8K
Jun 26, 202630,096$144.78$4.36M
Jun 24, 2026306$146.56$44.8K
Jun 23, 20267,120$144.38$1.03M
Jun 22, 20261,811$151.50$274.4K
Jun 16, 2026905$158.21$143.2K
Jun 12, 202696$159.68$15.3K
Jun 11, 202689$168.32$15.0K

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 APPF by trade date
Trade dateShort volumeShort exemptOff-exchange volumeShort volume ratio
Nov 11, 202643,7061,10064,93467.3%
Nov 10, 202657,5632591,71262.8%
Nov 9, 202657,8921113,98350.8%
Nov 6, 2026106,49930134,64779.1%
Nov 5, 2026123,188120186,04566.2%
Nov 4, 2026124,5071199,55362.4%
Nov 3, 202659,104097,74060.5%
Nov 2, 2026121,031528179,05267.6%
Oct 30, 202660,476088,29568.5%
Oct 29, 202680,1320114,65869.9%
Oct 28, 202695,467115141,18767.6%
Oct 27, 202674,69618102,32773.0%
Oct 26, 2026143,33664234,37861.2%
Oct 23, 2026183,9220237,81777.3%
Oct 22, 2026200,8081,300430,68746.6%
Oct 21, 2026125,22552198,26563.2%
Oct 20, 2026117,98326152,84577.2%
Oct 19, 202689,6662,993113,30479.1%
Oct 16, 202698,64313134,04373.6%
Oct 15, 2026152,2590247,94661.4%
Oct 14, 2026100,5430168,32259.7%
Oct 13, 2026110,2800150,89573.1%
Oct 12, 202699,4700133,92074.3%
Oct 9, 2026123,6732146,93084.2%
Oct 8, 202678,539091,21386.1%
Oct 7, 2026152,4720217,68670.0%
Oct 6, 202684,1851126,42766.6%
Oct 5, 2026106,6688156,33568.2%
Oct 2, 2026131,3671156,63083.9%
Oct 1, 202647,242364,11773.7%

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 APPF
Week ofTierATS sharesATS tradesOther OTC sharesOther OTC tradesATS share
Oct 19, 2026T1883,27926,912279,6048,69076.0%
Oct 12, 2026T1606,32219,636275,6246,73968.7%
Oct 5, 2026T1479,43719,789285,0337,15062.7%
Sep 28, 2026T1430,12219,285203,1686,99867.9%
Sep 21, 2026T1371,83918,458143,1566,33772.2%
Sep 14, 2026T1483,20521,188276,0306,39963.6%
Sep 7, 2026T1264,84414,45397,5614,40773.1%
Aug 31, 2026T1610,12623,742248,9675,89971.0%
Aug 24, 2026T1475,05519,904440,4586,33151.9%
Aug 17, 2026T1570,00621,872209,0865,91373.2%
Aug 10, 2026T1771,38623,716199,4875,80779.5%
Aug 3, 2026T1855,81726,475177,2796,27282.8%