Amphenol (APH) Short Interest Ratio & Short Volume $125.73 -1.63 (-1.28%) Closing price 10/17/2025 03:59 PM EasternExtended Trading$125.74 +0.00 (+0.00%) As of 10/17/2025 07:59 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Short Interest Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Amphenol Short Interest DataAmphenol (APH) has a short interest of 9.41 million shares. This marks a -50.96% decrease in short interest from the previous month. The short interest ratio (days to cover) is 1.1, indicating that it would take 1.1 days of the average trading volume of 7.37 million shares to cover all short positions.Current Short Interest9,410,000 sharesPrevious Short Interest19,190,000 sharesChange Vs. Previous Month-50.96%Dollar Volume Sold Short$1.16 billionShort Interest Ratio1.1 Days to CoverLast Record DateSeptember 30, 2025Outstanding Shares1,220,920,000 sharesPercentage of Shares Shorted0.77%Today's Trading Volume5,882,560 sharesAverage Trading Volume7,368,065 sharesToday's Volume Vs. Average80% Short Selling Amphenol? Sign up to receive the latest short interest report for Amphenol and its competitors with MarketBeat's FREE newsletter. Email Address Get Report View SMS TermsBy entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. 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Skip Charts & View Short Interest HistoryShort Interest ChartDays to Cover ChartShort Percent of Float ChartAPH Short Interest Over TimeAPH Days to Cover Over TimeAPH Percentage of Float Shorted Over Time Amphenol Short Interest History Export to ExcelReport DateTotal Shares Sold ShortDollar Volume Sold ShortChange from Previous ReportPercentage of Float ShortedDays to CoverPrice on Report Date 9/30/20259,410,000 shares $1.16 billion -51.0%N/A1.1 $123.78 9/15/202519,190,000 shares $2.29 billion +8.5%N/A2.2 $119.40 8/31/202517,680,000 shares $1.92 billion +10.6%1.5%2 $108.85 8/15/202515,980,000 shares $1.75 billion +21.9%N/A1.9 $109.20 7/31/202513,110,000 shares $1.40 billion +3.0%1.1%1.5 $106.71 7/15/202512,730,000 shares $1.27 billion -20.1%N/A1.5 $99.45 6/30/202515,940,000 shares $1.58 billion -8.3%1.3%1.9 $98.85 6/15/202517,380,000 shares $1.61 billion -0.6%1.5%2 $92.38 5/31/202517,480,000 shares $1.57 billion +11.8%1.5%2.1 $89.77 5/15/202515,630,000 shares $1.34 billion +2.0%1.3%1.8 $85.82 Get the Latest News and Ratings for APH and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Amphenol and its competitors with MarketBeat's FREE daily newsletter. 4/30/202515,330,000 shares $1.18 billion +2.3%N/A1.8 $77.05 4/15/202514,980,000 shares $985.08 million +1.1%1.3%1.7 $65.76 3/31/202514,820,000 shares $972.46 million +13.6%1.2%1.7 $65.62 3/15/202513,050,000 shares $823.15 million -11.8%1.1%1.7 $63.08 2/28/202514,790,000 shares $984.51 million +1.6%1.2%2 $66.57 2/15/202514,560,000 shares $1.00 billion +15.1%1.2%2.1 $68.88 1/31/202512,650,000 shares $894.92 million -7.1%N/A1.8 $70.75 1/15/202513,620,000 shares $965.93 million -2.3%N/A2 $70.92 12/31/202413,940,000 shares $968.13 million +19.0%N/A2.2 $69.45 12/15/202411,710,000 shares $862.21 million -21.8%N/A1.7 $73.63 11/30/202414,980,000 shares $1.09 billion +5.3%N/A2.3 $72.65 11/15/202414,230,000 shares $1.00 billion +30.7%N/A2.1 $70.51 10/31/202410,890,000 shares $729.74 million -14.6%N/A1.7 $67.01 10/15/202412,750,000 shares $837.68 million +2.4%N/A1.8 $65.70 9/30/202412,450,000 shares $811.24 million +23.4%N/A1.8 $65.16 9/15/202410,090,000 shares $641.52 million +0.8%N/A1.4 $63.58 8/31/202410,010,000 shares $675.17 million -4.6%N/A1.4 $67.45 8/15/202410,490,000 shares $693.07 million +4.0%N/A1.4 $66.07 7/31/202410,090,000 shares $648.38 million -19.4%N/A1.3 $64.26 7/15/202412,520,000 shares $872.77 million -15.8%N/A1.7 $69.71 6/30/202414,860,000 shares $1.00 billion +4.1%N/A2 $67.37 6/15/202414,270,000 shares $974.21 million +54.8%N/A2 $68.27 5/31/20249,220,000 shares $610.23 million +11.8%1.5%2.7 $66.19 5/15/20248,250,000 shares $1.09 billion +4.8%1.4%2.6 $131.98 4/30/20247,870,000 shares $950.42 million -7.6%1.3%2.6 $120.77 4/15/20248,520,000 shares $957.56 million +12.1%N/A2.9 $112.39 3/31/20247,600,000 shares $876.66 million +5.9%1.3%2.8 $115.35 3/15/20247,180,000 shares $784.92 million -1.1%1.2%2.9 $109.32 2/29/20247,260,000 shares $792.47 million -1.4%1.2%2.8 $109.16 2/15/20247,360,000 shares $777.88 million +4.8%1.2%2.8 $105.69 1/31/20247,020,000 shares $709.72 million -16.1%1.2%2.6 $101.10 1/15/20248,370,000 shares $807.71 million +0.2%1.4%3.1 $96.50 12/31/20238,350,000 shares $827.74 million +21.0%1.4%3.1 $99.13 12/15/20236,900,000 shares $685.03 million +4.1%1.2%2.5 $99.28 11/30/20236,630,000 shares $603.26 million -3.1%1.1%2.5 $90.99 11/15/20236,840,000 shares $609.03 million +22.1%1.2%2.8 $89.04 10/31/20235,600,000 shares $451.08 million +11.1%0.9%2.4 $80.55 10/15/20235,040,000 shares $412.78 million -8.4%0.9%2.1 $81.90 9/30/20235,500,000 shares $461.95 million +12.0%0.9%2.4 $83.99 9/15/20234,910,000 shares $420.79 million +15.8%0.8%2.3 $85.70 8/31/20234,240,000 shares $374.73 million -22.5%0.7%1.9 $88.38 8/15/20235,470,000 shares $474.74 million -4.4%0.9%2.1 $86.79 7/31/20235,720,000 shares $505.19 million +9.0%1.0%2.1 $88.32 7/15/20235,250,000 shares $444.20 million -0.6%0.9%1.9 $84.61 6/30/20235,280,000 shares $448.54 million -3.1%0.9%1.9 $84.95 6/15/20235,450,000 shares $446.19 million -4.2%0.9%1.9 $81.87 5/31/20235,690,000 shares $429.31 million +3.3%1.0%2 $75.45 5/15/20235,510,000 shares $417.33 million -12.8%0.9%2.1 $75.74 4/30/20236,320,000 shares $476.97 million +6.6%1.1%2.5 $75.47 4/15/20235,930,000 shares $463.37 million -0.5%1.0%2.4 $78.14 3/31/20235,960,000 shares $487.05 million +15.1%1.0%2.4 $81.72 3/15/20235,180,000 shares $393.89 million +7.0%0.9%2.2 $76.04 2/28/20234,840,000 shares $375.20 million +13.9%0.8%2.1 $77.52 2/15/20234,250,000 shares $346.21 million -2.8%0.7%1.9 $81.46 1/31/20234,370,000 shares $348.59 million -32.4%0.7%1.9 $79.77 1/15/20236,460,000 shares $519.19 million +10.8%1.1%2.8 $80.37 12/30/20225,830,000 shares $443.90 million +7.4%1.0%2.6 $76.14 12/15/20225,430,000 shares $424.35 million +3.6%0.9%2.4 $78.15 11/30/20225,240,000 shares $421.45 million -6.8%0.9%2.3 $80.43 11/15/20225,620,000 shares $447.91 million +9.3%1.0%2.6 $79.70 10/31/20225,140,000 shares $389.77 million -7.1%0.9%2.5 $75.83 10/15/20225,530,000 shares $370.79 million -8.3%0.9%2.8 $67.05 9/30/20226,030,000 shares $403.77 million +17.3%1.0%3.3 $66.96 9/15/20225,140,000 shares $374.65 million +4.1%0.9%2.8 $72.89 8/31/20224,940,000 shares $363.24 million -10.8%0.8%2.7 $73.53 8/15/20225,540,000 shares $441.15 million +17.9%0.9%2.7 $79.63 7/31/20224,700,000 shares $362.51 million -5.6%0.8%2.1 $77.13 7/15/20224,980,000 shares $329.28 million No Change0.8%2.2 $66.12 6/30/20224,980,000 shares $320.61 million -5.1%0.8%2 $64.38 6/15/20225,250,000 shares $347.13 million -5.2%0.9%2.1 $66.12 5/31/20225,540,000 shares $392.56 million +1.8%0.9%2.1 $70.86 5/15/20225,440,000 shares $383.36 million +9.0%1.0%2 $70.47 4/30/20224,990,000 shares $356.79 million +2.9%0.8%1.8 $71.50 4/15/20224,850,000 shares $341.34 million -7.6%0.8%1.6 $70.38 3/31/20225,250,000 shares $395.59 million +16.7%0.9%1.8 $75.35 3/15/20224,500,000 shares $330.44 million -13.6%0.8%1.7 $73.43 2/28/20225,210,000 shares $396.01 million -12.3%0.9%2.1 $76.01 2/15/20225,940,000 shares $456.19 million +13.8%1.0%2.4 $76.80 1/31/20225,220,000 shares $415.46 million +3.4%0.9%2.3 $79.59 1/15/20225,050,000 shares $412.13 million -5.6%0.9%2.5 $81.61 12/31/20215,350,000 shares $467.91 million +3.9%0.9%2.7 $87.46 12/15/20215,150,000 shares $434.51 million -17.3%0.9%2.5 $84.37 11/30/20216,230,000 shares $502.01 million -4.2%1.1%2.9 $80.58 11/15/20216,500,000 shares $552.24 million +6.4%1.1%3.1 $84.96 10/29/20216,110,000 shares $469.06 million -1.8%1.0%2.9 $76.77 10/15/20216,220,000 shares $479.38 million -2.4%1.1%2.9 $77.07 9/30/20216,370,000 shares $466.48 million +19.3%1.1%2.6 $73.23 9/15/20215,340,000 shares $408.03 million +4.3%0.9%2.2 $76.41 8/31/20215,120,000 shares $392.35 million +3.2%0.9%2.1 $76.63 8/13/20214,960,000 shares $366.99 million +19.5%0.8%2.1 $73.99 7/30/20214,150,000 shares $300.83 million +12.8%0.7%1.7 $72.49 7/15/20213,680,000 shares $254.25 million +2.5%0.6%1.4 $69.09 6/30/20213,590,000 shares $245.59 million +10.5%0.6%1.4 $68.41 6/15/20213,250,000 shares $222.40 million -32.9%0.6%1.3 $68.43 5/28/20214,840,000 shares $325.54 million -12.3%0.8%1.9 $67.26 5/14/20215,520,000 shares $360.46 million +13.4%N/A1.9 $65.30 4/30/20214,870,000 shares $334.28 million -5.1%N/A1.6 $68.64 4/15/20215,130,000 shares $347.35 million +14.0%N/A1.7 $67.71 3/31/20214,500,000 shares $295.16 million -5.3%N/A1.6 $65.59 3/15/20214,750,000 shares $304.43 million +130.6%N/A1.7 $64.09 2/26/20212,060,000 shares $128.97 million -9.3%N/A0.8 $62.61 2/12/20212,270,000 shares $150.49 million +5.6%N/A1.7 $66.30 1/29/20212,150,000 shares $136.36 million +8.0%N/A1.6 $63.43 1/15/20211,990,000 shares $133.17 million +7.0%N/A1.5 $66.92 12/31/20201,860,000 shares $120.75 million -20.5%N/A1.4 $64.92 12/15/20202,340,000 shares $152.45 million +3.1%N/A1.6 $65.15 11/30/20202,270,000 shares $149.76 million +10.7%N/A1.5 $65.98 11/15/20202,050,000 shares $126.49 million -2.8%N/A1.4 $61.70 10/30/20202,110,000 shares $119.39 million +12.2%N/A1.5 $56.59 APH Short Interest - Frequently Asked Questions What is Amphenol's current short interest? Short interest is the volume of Amphenol shares that have been sold short but have not yet been covered or closed out. As of September 30th, investors have sold 9,410,000 shares of APH short. Learn More on Amphenol's current short interest. What is a good short interest ratio for Amphenol? The short interest ratio, also known as the "days to cover ratio", is calculated by dividing the number of shares of a stock sold short divided by its average trading volume. A short interest ratio ranging between 1 and 4 generally indicates strong positive sentiment about a stock and a lack of short sellers. A short interest ratio of 10 or greater indicates strong pessimism about a stock. APH shares currently have a short interest ratio of 1.0. Learn More on Amphenol's short interest ratio. Which institutional investors are shorting Amphenol? As of the most recent reporting period, the following institutional investors, funds, and major shareholders have reported short positions of Amphenol: Scopus Asset Management L.P., Group One Trading LLC, Cubist Systematic Strategies LLC, Boothbay Fund Management LLC, Bank of America Corp DE, Jane Street Group LLC, Rokos Capital Management LLP, Squarepoint Ops LLC, Qube Research & Technologies Ltd, Maven Securities LTD, Oribel Capital Management LP, Marshall Wace LLP, Walleye Capital LLC, Walleye Trading LLC, Capital Fund Management S.A., Arrowpoint Investment Partners Singapore Pte. Ltd., Simplex Trading LLC, Allianz Asset Management GmbH, Twin Tree Management LP, and CenterStar Asset Management LLC. These positions are disclosed in Form 13F filings with the Securities and Exchange Commission. Is Amphenol's short interest increasing or decreasing? Amphenol saw a decline in short interest in the month of September. As of September 30th, there was short interest totaling 9,410,000 shares, a decline of 51.0% from the previous total of 19,190,000 shares. Changes in short volume can be used to identify positive and negative investor sentiment. Investors that short sell a stock are betting that its price will decline in the future. An increase in short sale volume suggests bearish (negative) sentiment among investors. A decrease on short sale volume suggests bullish (positive) sentiment. How does Amphenol's short interest compare to its competitors? Here is how the short interest of companies compare to Amphenol: Advanced Energy Industries, Inc. (6.49%), KLA Corporation (2.57%), Lam Research Corporation (2.36%), MKS Inc. (5.39%), MACOM Technology Solutions Holdings, Inc. (5.04%), Eaton Corporation, PLC (1.61%), ITT Inc. (1.65%), nVent Electric PLC (2.15%), TE Connectivity Ltd. (1.25%), Corning Incorporated (1.76%), Which stocks are the most shorted right now? As of the most recent reporting period, the following stocks had the largest short interest positions: AppLovin Corporation ($15.71 billion), Robinhood Markets, Inc. ($7.56 billion), Reddit Inc. ($4.55 billion), Coinbase Global, Inc. ($4.53 billion), CoreWeave Inc. ($4.43 billion), Charter Communications, Inc. ($4.07 billion), Seagate Technology Holdings PLC ($3.94 billion), IonQ, Inc. ($3.78 billion), TC Energy Corporation ($3.13 billion), and Live Nation Entertainment, Inc. ($3.12 billion). View all of the most shorted stocks. What does it mean to sell short Amphenol stock? Short selling APH is an investing strategy that aims to generate trading profit from Amphenol as its price is falling. APH shares are trading down $1.63 today. To short a stock, an investor borrows shares, sells them and buys the shares back on the public market later to return it to the lender. Short sellers are betting that a stock will decline in price. If the stock does drop after selling, the short seller buys it back at a lower price and returns it to the lender. The difference between the sell price and the buy price is the trader's profit. How does a short squeeze work against Amphenol? A short squeeze for Amphenol occurs when it has a large amount of short interest and its stock appreciates in price. This forces short sellers to cover their short interest positions by buying actual shares of APH, which in turn drives the price of the stock up even further. How often is Amphenol's short interest reported? Short interest is typically published by a stock exchange once per month. However, NASDAQ publishes a report for U.S. stocks, including APH, twice per month. The most recent reporting period available is September, 30 2025. More Short Interest Resources from MarketBeat Related Companies Advanced Energy Industries Short Squeeze Calamos Strategic Total Return Fund Short Squeeze KLA Short Squeeze Lam Research Short Squeeze MKS Short Squeeze MACOM Technology Solutions Short Squeeze Eaton Short Squeeze ITT Short Squeeze nVent Electric Short Squeeze TE Connectivity Short Squeeze Short Interest Tools Stocks to Short Largest Short Interest Positions Short Interest Increases Short Interest Decreases Short Interest Reporting Dates This page (NYSE:APH) was last updated on 10/19/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredCapital Gains Tax Strategies for SeniorsCapital gains taxes can take a bite out of your retirement income—unless you have a smart strategy. 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