Skip to content
HowShorted

APH short interest NYSE

Amphenol Corporation. FINRA's reported shares short for this symbol, twice a month by settlement date, shown as the regulator publishes them. No percentage is shown: an SEC filer exists but no defensible share count is available yet.

Shares short
31,544,237
vs previous settlement
+17,983,016 (+132.6%)
days to cover
2.75
Settlement date
15 Sep 2026

Shares short over time

Aggregate net short position time series for APH shares short

Days to cover

FINRA's own figure: reported shares short divided by the security's average daily trading volume, published alongside each settlement.

Aggregate net short position time series for APH days to cover

Fails to deliver

The SEC's fails-to-deliver figure for APH: the aggregate net balance of shares that failed to be delivered at each settlement date, published by the SEC twice a month and shown here verbatim for the trailing window. A balance is not a daily flow, and a fail has many ordinary causes; the SEC says it cannot guarantee the accuracy of the data. See what fails to deliver are and the largest balances today.

Last balance on file
24
10 Sep 2026
Highest in window
459,417
13 Feb 2026
Days with a balance
71
Window
16 Sep 2025 to 14 Sep 2026
Aggregate net short position time series for Amphenol Corporation fails to deliver

Source: U.S. Securities and Exchange Commission, fails-to-deliver data (public domain). Only settlement days with a positive balance appear; the largest balance in the window was 459K shares.

History

Every FINRA settlement we hold for APH, newest first. สณ marks a figure FINRA itself flagged as revised.

Full reported short interest history
Settlement dateShares shortChangeDays to cover
15 Sep 202631,544,237+17,983,0162.75
31 Aug 202613,561,221โˆ’1,211,6782.36
14 Aug 202614,772,899โˆ’645,1802.62
31 Jul 202615,418,079โˆ’1,090,0562.07
15 Jul 202616,508,135+519,8652.51
30 Jun 202615,988,270โˆ’1,235,1531.63
15 Jun 202617,223,423โˆ’673,3391.77
29 May 202617,896,762+1,932,1011.46
15 May 202615,964,661+3,082,7231.29
30 Apr 202612,881,938โˆ’902,5751.62
15 Apr 202613,784,513โˆ’1,187,8002.00
31 Mar 202614,972,313+3,927,4561.47
13 Mar 202611,044,857โˆ’4,498,1151.08
27 Feb 202615,542,972โˆ’853,0192.17
13 Feb 202616,395,991โˆ’1,009,7061.34
30 Jan 202617,405,697+4,512,0611.24
15 Jan 202612,893,636+861,7731.46
31 Dec 202512,031,863+317,2971.85
15 Dec 202511,714,566+468,5621.49
28 Nov 202511,246,004+1,321,1421.41
14 Nov 20259,924,862+490,6141.15
31 Oct 20259,434,248+865,0931.06
15 Oct 20258,569,155โˆ’836,8841.32
30 Sep 20259,406,039โˆ’9,784,8951.00
15 Sep 202519,190,934+1,514,6511.94
29 Aug 202517,676,283+1,696,4002.61
15 Aug 202515,979,883+2,869,8132.19
31 Jul 202513,110,070+375,9471.24
15 Jul 202512,734,123โˆ’3,209,9331.90
30 Jun 202515,944,056โˆ’1,439,5311.37
13 Jun 202517,383,587โˆ’91,6982.53
30 May 202517,475,285+1,841,4662.20
15 May 202515,633,819+304,6212.09
30 Apr 202515,329,198+354,1611.66
15 Apr 202514,975,037+157,0081.49
31 Mar 202514,818,029+1,770,8851.62
14 Mar 202513,047,144โˆ’1,742,6351.54
28 Feb 202514,789,779+233,4571.81
14 Feb 202514,556,322+1,904,1352.10
31 Jan 202512,652,187โˆ’966,8661.23
15 Jan 202513,619,053โˆ’320,7982.44
31 Dec 202413,939,851+2,232,6452.15
13 Dec 202411,707,206โˆ’3,270,5912.21
29 Nov 202414,977,797+751,1502.65
15 Nov 202414,226,647+3,336,7782.06
31 Oct 202410,889,869โˆ’1,862,3901.35
15 Oct 202412,752,259+305,9171.89
30 Sep 202412,446,342+2,352,5252.07
13 Sep 202410,093,817+84,8391.40
30 Aug 202410,008,978โˆ’478,1982.10
15 Aug 202410,487,176+395,4121.24
31 Jul 202410,091,764โˆ’2,424,5521.04
15 Jul 202412,516,316โˆ’2,339,4132.59
28 Jun 202414,855,729+584,6141.57
14 Jun 202414,271,115+5,053,0132.33
31 May 20249,218,102+965,3542.11
15 May 20248,252,748+383,8542.82
30 Apr 20247,868,894โˆ’654,5121.97
15 Apr 20248,523,406+924,4822.56
28 Mar 20247,598,924+422,3782.37
15 Mar 20247,176,546โˆ’84,2243.06
29 Feb 20247,260,770โˆ’102,4642.89
15 Feb 20247,363,234+346,6023.27
31 Jan 20247,016,632โˆ’1,354,7842.22
12 Jan 20248,371,416+25,2193.84
29 Dec 20238,346,197+1,443,2014.23
15 Dec 20236,902,996+268,3661.81
30 Nov 20236,634,630โˆ’210,3252.84
15 Nov 20236,844,955+1,242,7482.89
31 Oct 20235,602,207+561,1081.79
13 Oct 20235,041,099โˆ’461,5971.97
29 Sep 20235,502,696+594,9752.18
15 Sep 20234,907,721+667,7972.23
31 Aug 20234,239,924โˆ’1,233,8472.61
15 Aug 20235,473,771โˆ’246,1202.56
31 Jul 20235,719,891+472,6261.95
14 Jul 20235,247,265โˆ’35,3342.86
30 Jun 20235,282,599โˆ’163,1972.05
15 Jun 20235,445,796โˆ’241,8532.21
31 May 20235,687,649+178,8331.35
15 May 20235,508,816โˆ’810,1512.14
28 Apr 20236,318,967+385,3221.87
14 Apr 20235,933,645โˆ’30,2412.68
31 Mar 20235,963,886+781,8492.29
15 Mar 20235,182,037+343,1562.23
28 Feb 20234,838,881+589,1202.00
15 Feb 20234,249,761โˆ’116,2801.66
31 Jan 20234,366,041โˆ’2,097,0451.64
13 Jan 20236,463,086+628,1282.96
30 Dec 20225,834,958+403,3553.01
15 Dec 20225,431,603+188,8162.60
30 Nov 20225,242,787โˆ’377,4632.70
15 Nov 20225,620,250+479,8962.19
31 Oct 20225,140,354โˆ’394,3781.85
14 Oct 20225,534,732โˆ’496,3132.68
30 Sep 20226,031,045+889,0732.55
15 Sep 20225,141,972+204,2383.02
31 Aug 20224,937,734โˆ’604,1513.74
15 Aug 20225,541,885+846,5743.32
29 Jul 20224,695,311โˆ’288,3692.26
15 Jul 20224,983,680+8,3432.64
30 Jun 20224,975,337โˆ’276,4711.91
15 Jun 20225,251,808โˆ’293,1682.54
31 May 20225,544,976+108,1892.24
13 May 20225,436,787+451,5322.46
29 Apr 20224,985,255+139,9671.59
14 Apr 20224,845,288โˆ’404,5282.03
31 Mar 20225,249,816+752,8141.77
15 Mar 20224,497,002โˆ’715,6411.53
28 Feb 20225,212,643โˆ’723,8601.62
15 Feb 20225,936,503+719,9422.31
31 Jan 20225,216,561+162,1651.50
14 Jan 20225,054,396โˆ’298,0162.38
31 Dec 20215,352,412+202,9843.43
15 Dec 20215,149,428โˆ’1,084,5252.56
30 Nov 20216,233,953โˆ’265,6622.80
15 Nov 20216,499,615+394,5723.34
29 Oct 20216,105,043โˆ’114,3693.09
15 Oct 20216,219,412โˆ’151,4193.37
30 Sep 20216,370,831+1,027,9042.19
15 Sep 20215,342,927+225,8312.68
31 Aug 20215,117,096+161,0282.46
13 Aug 20214,956,068+808,6122.54
30 Jul 20214,147,456+467,9321.26
15 Jul 20213,679,524+93,1221.42
30 Jun 20213,586,402+331,5141.32
15 Jun 20213,254,888สณโˆ’1,582,2271.65
28 May 20214,837,115โˆ’680,9142.58
14 May 20215,518,029+645,6782.22
30 Apr 20214,872,351โˆ’261,1581.58
15 Apr 20215,133,509+638,3982.01
31 Mar 20214,495,111โˆ’250,3371.94
15 Mar 20214,745,448+2,685,7811.65
26 Feb 20212,059,667โˆ’212,7371.36
12 Feb 20212,272,404+123,1802.14
29 Jan 20212,149,224+159,3251.43
15 Jan 20211,989,899+127,1442.33
31 Dec 20201,862,755โˆ’481,2341.93
15 Dec 20202,343,989+76,7171.83
30 Nov 20202,267,272+212,9202.10
13 Nov 20202,054,352โˆ’52,3201.33
30 Oct 20202,106,672+224,3911.43
15 Oct 20201,882,281+182,4441.69
30 Sep 20201,699,837โˆ’274,1051.22
15 Sep 20201,973,942โˆ’2,4821.43
31 Aug 20201,976,424โˆ’56,1542.46
14 Aug 20202,032,578โˆ’700,9981.81
31 Jul 20202,733,576+188,0962.10
15 Jul 20202,545,480โˆ’202,9351.97
30 Jun 20202,748,415โˆ’761,5352.07
15 Jun 20203,509,950+44,1801.98
29 May 20203,465,770+162,9842.62
15 May 20203,302,786สณโˆ’99,6082.79
30 Apr 20203,402,394+95,9671.71
15 Apr 20203,306,427+238,0381.41
31 Mar 20203,068,389+81,2581.15
13 Mar 20202,987,131+471,9021.48
28 Feb 20202,515,229+155,0651.31
14 Feb 20202,360,164โˆ’120,1792.10
31 Jan 20202,480,343โˆ’230,8601.83
15 Jan 20202,711,203โˆ’472,0873.26
31 Dec 20193,183,290+8,9384.00
13 Dec 20193,174,352+315,2123.60
29 Nov 20192,859,140โˆ’331,0612.67
15 Nov 20193,190,201+243,0003.23
31 Oct 20192,947,201โˆ’165,0402.28
15 Oct 20193,112,241+138,1712.83
30 Sep 20192,974,070+966,7132.13
13 Sep 20192,007,357โˆ’123,6501.47
30 Aug 20192,131,007โˆ’494,6281.89
15 Aug 20192,625,635โˆ’261,9651.56
31 Jul 20192,887,600+145,0271.50
15 Jul 20192,742,573โˆ’552,6552.99
28 Jun 20193,295,228+459,4482.21
14 Jun 20192,835,780โˆ’357,7272.04
31 May 20193,193,507+181,4772.11
15 May 20193,012,030โˆ’276,6041.65
30 Apr 20193,288,634+103,7762.10
15 Apr 20193,184,858+40,3982.82
29 Mar 20193,144,460โˆ’44,1733.26
15 Mar 20193,188,633+26,3403.49
28 Feb 20193,162,293โˆ’239,7223.02
15 Feb 20193,402,015โˆ’520,6483.17
31 Jan 20193,922,663+191,8202.48
15 Jan 20193,730,843+290,7602.31
31 Dec 20183,440,083โˆ’1,742,3272.08
14 Dec 20185,182,410+566,2802.73
30 Nov 20184,616,130+1,0712.97
15 Nov 20184,615,059+500,7172.89
31 Oct 20184,114,342+362,1701.65
15 Oct 20183,752,172+147,5082.65
28 Sep 20183,604,664โˆ’822,4992.69
14 Sep 20184,427,163+1,230,6203.44
31 Aug 20183,196,543โˆ’121,2552.44
15 Aug 20183,317,798โˆ’461,6333.27
31 Jul 20183,779,431โˆ’1,201,9972.67
13 Jul 20184,981,428สณ+916,4526.47
29 Jun 20184,064,976โˆ’921,9403.19
15 Jun 20184,986,916+648,0473.95
31 May 20184,338,869โˆ’258,4663.90
15 May 20184,597,335+239,4323.65
30 Apr 20184,357,903โˆ’326,8292.87
13 Apr 20184,684,732โˆ’411,4163.50
29 Mar 20185,096,148+440,7624.51
15 Mar 20184,655,386+111,3924.28
28 Feb 20184,543,994โˆ’47,2754.11
15 Feb 20184,591,269+463,2282.55
31 Jan 20184,128,041โˆ’12,6142.40
12 Jan 20184,140,655+233,9873.64
29 Dec 20173,906,668โ€“4.18

Scroll inside the table for earlier settlements, back to 29 Dec 2017.

Questions

Frequently asked questions

What is APH's short interest?
31,544,237 shares short for settlement date 15 Sep 2026, per FINRA's consolidated short interest report, up 17,983,016 from the previous settlement.
Why is there no percentage for APH?
Because no defensible share count exists to divide by: an SEC filer exists but no defensible share count is available yet. The symbol maps to an SEC filer, but its share count cannot be used yet. A newly listed company needs two cover-page counts on file before the first is trusted; a split or an unexplained jump pauses publication until a fresh SEC count corroborates it; a secondary share class publishes under the company's primary line; and a foreign filer's short count is in depositary-share units. This page upgrades to a percentage automatically once a defensible count exists.
What is APH's days to cover?
2.75 days for settlement date 15 Sep 2026: FINRA's own short interest ratio, the reported shares short divided by average daily trading volume, published in the same file and shown verbatim. We hold no volume data ourselves.
Is this the short float?
No. This page shows FINRA's share count only. Short float divides that count by the public float, and short interest as we publish it elsewhere divides it by shares outstanding from SEC filings. Neither denominator is available for this line, so neither ratio is shown.
How often does this update?
FINRA member firms report short positions as of the 15th and the last business day of each month, and FINRA publishes the consolidated figures about nine business days later. We ingest each file the day it appears and re-read recent settlements for revisions.

Ranked companies with a percentage: most shorted US stocks. Other symbols with counts only: shares short without a percentage. Browse by name: US companies A to Z.