What is the current 10-day volatility of APH?

As of today, APH 10-day volatility is 45.42%

What 10-day volatility category does APH fall into?

Based on its current 10-day historical volatility, APH falls into the high volatility category

What is APH 10-day volatility 1-year high?

APH 10-day volatility reached a 1-year high of 110.10% on February 9, 2026

What is APH 10-day volatility 1-year low?

APH 10-day volatility reached a 1-year low of 16.89% on August 28, 2025

What is the current 1-month volatility of APH?

As of today, APH 1-month volatility is 39.10%

What 1-month volatility category does APH fall into?

Based on its current 1-month historical volatility, APH falls into the moderate volatility category

What is APH 1-month volatility 1-year high?

APH 1-month volatility reached a 1-year high of 81.27% on February 9, 2026

What is APH 1-month volatility 1-year low?

APH 1-month volatility reached a 1-year low of 19.57% on October 9, 2025

What is the current 3-month volatility of APH?

As of today, APH 3-month volatility is 45.08%

What 3-month volatility category does APH fall into?

Based on its current 3-month historical volatility, APH falls into the high volatility category

What is APH 3-month volatility 1-year high?

APH 3-month volatility reached a 1-year high of 58.85% on April 8, 2026

What is APH 3-month volatility 1-year low?

APH 3-month volatility reached a 1-year low of 19.62% on August 28, 2025

What is the current 1-year volatility of APH?

As of today, APH 1-year volatility is 45.14%

What 1-year volatility category does APH fall into?

Based on its current 1-year historical volatility, APH falls into the high volatility category

What is APH 1-year volatility 1-year high?

APH 1-year volatility reached a 1-year high of 45.15% on August 28, 2026

What is APH 1-year volatility 1-year low?

APH 1-year volatility reached a 1-year low of 34.46% on September 8, 2025

APH Stock Volatility History & Chart Since 1991

10-Day

45.42%

August 28, 2026

Summary

Current Value: As of today, APH 10-day volatility is 45.42%, up +1.43% on August 28, 2026
Value Category: Based on its current 10-day historical volatility, APH falls into the high volatility category
1-Year High: APH 10-day volatility reached a 1-year high of 110.10% on February 9, 2026
1-Year Low: APH 10-day volatility reached a 1-year low of 16.89% on August 28, 2025

10-Day Volatility Chart

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Aug 28, 26	45.42%	+1.4%	+20.4%	-18.3%	+54.7%	+168.9%	+301.9%	+358.8%
1-Month Volatility	Aug 28, 26	39.10%	-14.1%	-12.4%	-31.9%	+14.9%	+70.7%	+220.0%	+294.6%
3-Month Volatility	Aug 28, 26	45.08%	-1.2%	-8.5%	-9.2%	+30.9%	+129.8%	+150.3%	+232.4%
1-Year Volatility	Aug 28, 26	45.14%	+0.1%	+3.3%	+11.7%	+23.0%	+27.3%	+94.0%	+103.2%
14-Day RSI	Aug 28, 26	46.68	-8.1%	+24.9%	-25.6%	-5.6%	-28.1%	-12.2%	-40.6%
Beta	Aug 28, 26	1.74	0.0%	-0.6%	+3.6%	+34.9%	+33.9%	+68.9%	+47.5%
ATR	Aug 28, 26	$5.82	-2.5%	-14.2%	-4.3%	+62.7%	+128.9%	+849.0%	+1217.8%
Price	Aug 28, 26	$157.74	-2.3%	+9.7%	+6.8%	+16.7%	+40.9%	+264.1%	+311.1%
200-Day SMA	Aug 28, 26	$145.10	+0.1%	+2.5%	+8.8%	+36.1%	+79.2%	+263.1%	+331.9%
50-Day SMA	Aug 28, 26	$161.12	-0.0%	+6.1%	+19.0%	+18.2%	+55.2%	+277.7%	+352.1%
20-Day SMA	Aug 28, 26	$163.79	-0.1%	+3.6%	+23.7%	+20.9%	+49.6%	+276.3%	+340.9%

10-Day Volatility History

Date	Value	Change
Aug 28, 2026	45.42%	+54.7%
Dec 31, 2025	29.36%	-4.0%
Dec 31, 2024	30.59%	+176.8%
Dec 31, 2023	11.05%	-48.0%
Dec 31, 2022	21.25%	-4.5%
Dec 31, 2021	22.26%	+62.5%
Dec 31, 2020	13.70%	+72.1%
Dec 31, 2019	7.96%	-75.9%
Dec 31, 2018	33.03%	+336.9%
Dec 31, 2017	7.56%	-21.3%
Dec 31, 2016	9.60%	-48.4%
Dec 31, 2015	18.61%	-15.6%
Dec 31, 2014	22.05%	+243.5%
Dec 31, 2013	6.42%	-62.7%
Dec 31, 2012	17.20%	-51.9%
Dec 31, 2011	35.76%	+327.8%
Dec 31, 2010	8.36%	-70.9%
Dec 31, 2009	28.70%	-39.2%

Date	Value	Change
Dec 31, 2008	47.21%	+79.7%
Dec 31, 2007	26.27%	+56.1%
Dec 31, 2006	16.83%	-34.9%
Dec 31, 2005	25.85%	+37.6%
Dec 31, 2004	18.79%	+2.0%
Dec 31, 2003	18.43%	-15.0%
Dec 31, 2002	21.67%	+0.3%
Dec 31, 2001	21.60%	-83.4%
Dec 31, 2000	129.80%	+869.4%
Dec 31, 1999	13.39%	-60.8%
Dec 31, 1998	34.12%	+77.5%
Dec 31, 1997	19.22%	-41.7%
Dec 31, 1996	32.99%	-39.1%
Dec 31, 1995	54.13%	+121.8%
Dec 31, 1994	24.40%	-46.0%
Dec 31, 1993	45.20%	-47.5%
Dec 31, 1992	86.13%	+63.7%
Dec 31, 1991	52.63%	-

FAQ

What is the current 10-day volatility of APH?: As of today, APH 10-day volatility is 45.42%
What 10-day volatility category does APH fall into?: Based on its current 10-day historical volatility, APH falls into the high volatility category
What is APH 10-day volatility 1-year high?: APH 10-day volatility reached a 1-year high of 110.10% on February 9, 2026
What is APH 10-day volatility 1-year low?: APH 10-day volatility reached a 1-year low of 16.89% on August 28, 2025

1-Month

39.10%

August 28, 2026

Summary

Current Value: As of today, APH 1-month volatility is 39.10%, down -14.07% on August 28, 2026
Value Category: Based on its current 1-month historical volatility, APH falls into the moderate volatility category
1-Year High: APH 1-month volatility reached a 1-year high of 81.27% on February 9, 2026
1-Year Low: APH 1-month volatility reached a 1-year low of 19.57% on October 9, 2025

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Aug 28, 26	39.10%	-14.1%	-12.4%	-31.9%	+14.9%	+70.7%	+220.0%	+294.6%
10-Day Volatility	Aug 28, 26	45.42%	+1.4%	+20.4%	-18.3%	+54.7%	+168.9%	+301.9%	+358.8%
3-Month Volatility	Aug 28, 26	45.08%	-1.2%	-8.5%	-9.2%	+30.9%	+129.8%	+150.3%	+232.4%
1-Year Volatility	Aug 28, 26	45.14%	+0.1%	+3.3%	+11.7%	+23.0%	+27.3%	+94.0%	+103.2%
14-Day RSI	Aug 28, 26	46.68	-8.1%	+24.9%	-25.6%	-5.6%	-28.1%	-12.2%	-40.6%
Beta	Aug 28, 26	1.74	0.0%	-0.6%	+3.6%	+34.9%	+33.9%	+68.9%	+47.5%
ATR	Aug 28, 26	$5.82	-2.5%	-14.2%	-4.3%	+62.7%	+128.9%	+849.0%	+1217.8%
Price	Aug 28, 26	$157.74	-2.3%	+9.7%	+6.8%	+16.7%	+40.9%	+264.1%	+311.1%
200-Day SMA	Aug 28, 26	$145.10	+0.1%	+2.5%	+8.8%	+36.1%	+79.2%	+263.1%	+331.9%
50-Day SMA	Aug 28, 26	$161.12	-0.0%	+6.1%	+19.0%	+18.2%	+55.2%	+277.7%	+352.1%
20-Day SMA	Aug 28, 26	$163.79	-0.1%	+3.6%	+23.7%	+20.9%	+49.6%	+276.3%	+340.9%

1-Month Volatility History

Date	Value	Change
Aug 28, 2026	44.32%	+32.7%
Dec 31, 2025	33.41%	+30.5%
Dec 31, 2024	25.61%	+66.2%
Dec 31, 2023	15.41%	-41.1%
Dec 31, 2022	26.16%	+27.2%
Dec 31, 2021	20.56%	+63.4%
Dec 31, 2020	12.58%	+0.6%
Dec 31, 2019	12.50%	-61.9%
Dec 31, 2018	32.82%	+229.2%
Dec 31, 2017	9.97%	-23.8%
Dec 31, 2016	13.09%	-29.4%
Dec 31, 2015	18.54%	-3.1%
Dec 31, 2014	19.13%	+90.2%
Dec 31, 2013	10.06%	-31.2%
Dec 31, 2012	14.62%	-56.6%
Dec 31, 2011	33.69%	+115.3%
Dec 31, 2010	15.65%	-41.2%
Dec 31, 2009	26.61%	-62.8%

Date	Value	Change
Dec 31, 2008	71.58%	+166.0%
Dec 31, 2007	26.91%	+25.7%
Dec 31, 2006	21.40%	-16.6%
Dec 31, 2005	25.66%	+27.7%
Dec 31, 2004	20.09%	-1.8%
Dec 31, 2003	20.45%	-16.3%
Dec 31, 2002	24.43%	-28.2%
Dec 31, 2001	34.02%	-65.4%
Dec 31, 2000	98.22%	+177.8%
Dec 31, 1999	35.36%	-9.1%
Dec 31, 1998	38.89%	+59.5%
Dec 31, 1997	24.38%	-16.1%
Dec 31, 1996	29.05%	-31.1%
Dec 31, 1995	42.18%	+10.8%
Dec 31, 1994	38.06%	-10.4%
Dec 31, 1993	42.47%	-35.8%
Dec 31, 1992	66.13%	+40.7%
Dec 31, 1991	47.00%	-

FAQ

What is the current 1-month volatility of APH?: As of today, APH 1-month volatility is 39.10%
What 1-month volatility category does APH fall into?: Based on its current 1-month historical volatility, APH falls into the moderate volatility category
What is APH 1-month volatility 1-year high?: APH 1-month volatility reached a 1-year high of 81.27% on February 9, 2026
What is APH 1-month volatility 1-year low?: APH 1-month volatility reached a 1-year low of 19.57% on October 9, 2025

3-Month

45.08%

August 28, 2026

Summary

Current Value: As of today, APH 3-month volatility is 45.08%, down -1.21% on August 28, 2026
Value Category: Based on its current 3-month historical volatility, APH falls into the high volatility category
1-Year High: APH 3-month volatility reached a 1-year high of 58.85% on April 8, 2026
1-Year Low: APH 3-month volatility reached a 1-year low of 19.62% on August 28, 2025

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Aug 28, 26	45.08%	-1.2%	-8.5%	-9.2%	+30.9%	+129.8%	+150.3%	+232.4%
10-Day Volatility	Aug 28, 26	45.42%	+1.4%	+20.4%	-18.3%	+54.7%	+168.9%	+301.9%	+358.8%
1-Month Volatility	Aug 28, 26	39.10%	-14.1%	-12.4%	-31.9%	+14.9%	+70.7%	+220.0%	+294.6%
1-Year Volatility	Aug 28, 26	45.14%	+0.1%	+3.3%	+11.7%	+23.0%	+27.3%	+94.0%	+103.2%
14-Day RSI	Aug 28, 26	46.68	-8.1%	+24.9%	-25.6%	-5.6%	-28.1%	-12.2%	-40.6%
Beta	Aug 28, 26	1.74	0.0%	-0.6%	+3.6%	+34.9%	+33.9%	+68.9%	+47.5%
ATR	Aug 28, 26	$5.82	-2.5%	-14.2%	-4.3%	+62.7%	+128.9%	+849.0%	+1217.8%
Price	Aug 28, 26	$157.74	-2.3%	+9.7%	+6.8%	+16.7%	+40.9%	+264.1%	+311.1%
200-Day SMA	Aug 28, 26	$145.10	+0.1%	+2.5%	+8.8%	+36.1%	+79.2%	+263.1%	+331.9%
50-Day SMA	Aug 28, 26	$161.12	-0.0%	+6.1%	+19.0%	+18.2%	+55.2%	+277.7%	+352.1%
20-Day SMA	Aug 28, 26	$163.79	-0.1%	+3.6%	+23.7%	+20.9%	+49.6%	+276.3%	+340.9%

3-Month Volatility History

Date	Value	Change
Aug 28, 2026	44.74%	+30.9%
Dec 31, 2025	34.18%	+33.5%
Dec 31, 2024	25.61%	+50.1%
Dec 31, 2023	17.06%	-46.6%
Dec 31, 2022	31.92%	+51.0%
Dec 31, 2021	21.14%	-2.7%
Dec 31, 2020	21.72%	+33.0%
Dec 31, 2019	16.33%	-41.0%
Dec 31, 2018	27.69%	+129.0%
Dec 31, 2017	12.09%	-14.7%
Dec 31, 2016	14.17%	-36.6%
Dec 31, 2015	22.34%	-13.6%
Dec 31, 2014	25.87%	+104.5%
Dec 31, 2013	12.65%	-24.2%
Dec 31, 2012	16.68%	-60.6%
Dec 31, 2011	42.33%	+94.6%
Dec 31, 2010	21.75%	-31.5%
Dec 31, 2009	31.77%	-65.5%

Date	Value	Change
Dec 31, 2008	92.02%	+208.9%
Dec 31, 2007	29.79%	+24.7%
Dec 31, 2006	23.89%	+8.6%
Dec 31, 2005	22.00%	+0.0%
Dec 31, 2004	21.99%	-5.0%
Dec 31, 2003	23.14%	-49.8%
Dec 31, 2002	46.06%	+33.1%
Dec 31, 2001	34.60%	-59.6%
Dec 31, 2000	85.62%	+151.2%
Dec 31, 1999	34.09%	-22.3%
Dec 31, 1998	43.90%	+38.1%
Dec 31, 1997	31.80%	+17.6%
Dec 31, 1996	27.03%	-33.4%
Dec 31, 1995	40.59%	+13.8%
Dec 31, 1994	35.66%	-17.8%
Dec 31, 1993	43.36%	-25.8%
Dec 31, 1992	58.43%	+15.0%
Dec 31, 1991	50.79%	-

FAQ

What is the current 3-month volatility of APH?: As of today, APH 3-month volatility is 45.08%
What 3-month volatility category does APH fall into?: Based on its current 3-month historical volatility, APH falls into the high volatility category
What is APH 3-month volatility 1-year high?: APH 3-month volatility reached a 1-year high of 58.85% on April 8, 2026
What is APH 3-month volatility 1-year low?: APH 3-month volatility reached a 1-year low of 19.62% on August 28, 2025

1-Year

45.14%

August 28, 2026

Summary

Current Value: As of today, APH 1-year volatility is 45.14%, up +0.07% on August 28, 2026
Value Category: Based on its current 1-year historical volatility, APH falls into the high volatility category
1-Year High: APH 1-year volatility reached a 1-year high of 45.15% on August 28, 2026
1-Year Low: APH 1-year volatility reached a 1-year low of 34.46% on September 8, 2025

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Aug 28, 26	45.14%	+0.1%	+3.3%	+11.7%	+23.0%	+27.3%	+94.0%	+103.2%
10-Day Volatility	Aug 28, 26	45.42%	+1.4%	+20.4%	-18.3%	+54.7%	+168.9%	+301.9%	+358.8%
1-Month Volatility	Aug 28, 26	39.10%	-14.1%	-12.4%	-31.9%	+14.9%	+70.7%	+220.0%	+294.6%
3-Month Volatility	Aug 28, 26	45.08%	-1.2%	-8.5%	-9.2%	+30.9%	+129.8%	+150.3%	+232.4%
1-Year Volatility	Aug 28, 26	45.14%	+0.1%	+3.3%	+11.7%	+23.0%	+27.3%	+94.0%	+103.2%
14-Day RSI	Aug 28, 26	46.68	-8.1%	+24.9%	-25.6%	-5.6%	-28.1%	-12.2%	-40.6%
Beta	Aug 28, 26	1.74	0.0%	-0.6%	+3.6%	+34.9%	+33.9%	+68.9%	+47.5%
ATR	Aug 28, 26	$5.82	-2.5%	-14.2%	-4.3%	+62.7%	+128.9%	+849.0%	+1217.8%
Price	Aug 28, 26	$157.74	-2.3%	+9.7%	+6.8%	+16.7%	+40.9%	+264.1%	+311.1%
200-Day SMA	Aug 28, 26	$145.10	+0.1%	+2.5%	+8.8%	+36.1%	+79.2%	+263.1%	+331.9%
50-Day SMA	Aug 28, 26	$161.12	-0.0%	+6.1%	+19.0%	+18.2%	+55.2%	+277.7%	+352.1%
20-Day SMA	Aug 28, 26	$163.79	-0.1%	+3.6%	+23.7%	+20.9%	+49.6%	+276.3%	+340.9%

1-Year Volatility History

Date	Value	Change
Aug 28, 2026	45.15%	+23.0%
Dec 31, 2025	36.70%	+38.7%
Dec 31, 2024	26.46%	+43.3%
Dec 31, 2023	18.46%	-37.9%
Dec 31, 2022	29.71%	+43.0%
Dec 31, 2021	20.78%	-49.2%
Dec 31, 2020	40.92%	+90.1%
Dec 31, 2019	21.52%	+4.2%
Dec 31, 2018	20.65%	+74.4%
Dec 31, 2017	11.84%	-29.8%
Dec 31, 2016	16.87%	-23.5%
Dec 31, 2015	22.05%	+22.2%
Dec 31, 2014	18.05%	-12.8%
Dec 31, 2013	20.69%	-21.5%
Dec 31, 2012	26.36%	-24.8%
Dec 31, 2011	35.03%	+18.5%
Dec 31, 2010	29.56%	-35.1%
Dec 31, 2009	45.52%	-20.1%

Date	Value	Change
Dec 31, 2008	56.97%	+111.9%
Dec 31, 2007	26.89%	-11.1%
Dec 31, 2006	30.26%	+32.1%
Dec 31, 2005	22.90%	-20.5%
Dec 31, 2004	28.81%	-5.5%
Dec 31, 2003	30.50%	-27.4%
Dec 31, 2002	42.01%	-21.5%
Dec 31, 2001	53.54%	-31.3%
Dec 31, 2000	77.93%	+153.7%
Dec 31, 1999	30.72%	-25.7%
Dec 31, 1998	41.37%	+47.1%
Dec 31, 1997	28.13%	-16.8%
Dec 31, 1996	33.80%	-18.9%
Dec 31, 1995	41.67%	+20.3%
Dec 31, 1994	34.64%	-28.3%
Dec 31, 1993	48.30%	+3.8%
Dec 31, 1992	46.52%	-8.4%
Dec 31, 1991	50.79%	-

FAQ

What is the current 1-year volatility of APH?: As of today, APH 1-year volatility is 45.14%
What 1-year volatility category does APH fall into?: Based on its current 1-year historical volatility, APH falls into the high volatility category
What is APH 1-year volatility 1-year high?: APH 1-year volatility reached a 1-year high of 45.15% on August 28, 2026
What is APH 1-year volatility 1-year low?: APH 1-year volatility reached a 1-year low of 34.46% on September 8, 2025

Data Sources & References

APH Official Website www.amphenol.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/820313/000110465926007259/0001104659-26-007259-index.htm
APH Profile on Yahoo Finance finance.yahoo.com/quote/APH
APH Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/aph