What is the current 10-day volatility of APH?

As of today, APH 10-day volatility is 46.12%

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 17.76% on October 9, 2025

What is the current 1-month volatility of APH?

As of today, APH 1-month volatility is 38.30%

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 43.58%

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 23.84% on September 19, 2025

What is the current 1-year volatility of APH?

As of today, APH 1-year volatility is 45.55%

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 45.56% on September 17, 2026

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

APH 1-year volatility reached a 1-year low of 34.65% on January 27, 2026

APH Stock Volatility History & Chart Since 1991

10-Day

46.12%

September 17, 2026

Summary

Current Value: As of today, APH 10-day volatility is 46.12%, up +0.48% on September 17, 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 17.76% on October 9, 2025

10-Day Volatility Chart

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 17, 26	46.12%	+0.5%	+16.1%	-17.3%	+57.1%	+31.6%	+321.6%	+302.4%
1-Month Volatility	Sep 17, 26	38.30%	-12.9%	-21.3%	-21.4%	+12.5%	+37.5%	+236.6%	+251.4%
3-Month Volatility	Sep 17, 26	43.58%	+0.5%	-9.5%	-8.1%	+26.6%	+82.1%	+162.7%	+236.5%
1-Year Volatility	Sep 17, 26	45.55%	+0.0%	+1.5%	+9.0%	+24.1%	+30.6%	+98.4%	+114.2%
14-Day RSI	Sep 17, 26	45.82	+6.4%	-2.2%	-32.9%	-7.4%	-37.0%	-2.6%	-16.4%
Beta	Sep 17, 26	1.74	0.0%	+1.8%	+4.8%	+34.9%	+37.0%	+65.7%	+47.5%
ATR	Sep 17, 26	$2.82	-2.2%	-18.4%	-10.3%	+57.7%	+98.8%	+878.4%	+1148.3%
Price	Sep 18, 26	$79.10	+0.9%	-0.9%	-3.5%	+17.1%	+29.6%	+266.9%	+317.9%
200-Day SMA	Sep 17, 26	$73.34	+0.1%	+1.6%	+7.4%	+37.6%	+74.7%	+264.5%	+331.1%
50-Day SMA	Sep 17, 26	$80.02	-0.0%	-0.3%	+12.2%	+17.4%	+46.9%	+269.6%	+335.7%
20-Day SMA	Sep 17, 26	$79.87	+0.0%	-1.6%	+8.1%	+17.9%	+40.4%	+268.1%	+320.5%

10-Day Volatility History

Date	Value	Change
Sep 18, 2026	46.12%	+57.1%
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	18.59%	-15.7%
Dec 31, 2014	22.05%	+244.5%
Dec 31, 2013	6.40%	-62.8%
Dec 31, 2012	17.20%	-51.9%
Dec 31, 2011	35.77%	+327.9%
Dec 31, 2010	8.36%	-70.9%
Dec 31, 2009	28.71%	-39.2%

Date	Value	Change
Dec 31, 2008	47.23%	+79.7%
Dec 31, 2007	26.29%	+56.0%
Dec 31, 2006	16.85%	-34.8%
Dec 31, 2005	25.85%	+37.5%
Dec 31, 2004	18.80%	+1.9%
Dec 31, 2003	18.45%	-14.7%
Dec 31, 2002	21.64%	+0.3%
Dec 31, 2001	21.58%	-83.4%
Dec 31, 2000	129.74%	+871.8%
Dec 31, 1999	13.35%	-60.9%
Dec 31, 1998	34.14%	+78.6%
Dec 31, 1997	19.12%	-41.9%
Dec 31, 1996	32.90%	-39.0%
Dec 31, 1995	53.96%	+121.2%
Dec 31, 1994	24.39%	-46.4%
Dec 31, 1993	45.51%	-46.8%
Dec 31, 1992	85.60%	+61.8%
Dec 31, 1991	52.90%	-

FAQ

What is the current 10-day volatility of APH?: As of today, APH 10-day volatility is 46.12%
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 17.76% on October 9, 2025

1-Month

38.30%

September 17, 2026

Summary

Current Value: As of today, APH 1-month volatility is 38.30%, down -12.86% on September 17, 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	Sep 17, 26	38.30%	-12.9%	-21.3%	-21.4%	+12.5%	+37.5%	+236.6%	+251.4%
10-Day Volatility	Sep 17, 26	46.12%	+0.5%	+16.1%	-17.3%	+57.1%	+31.6%	+321.6%	+302.4%
3-Month Volatility	Sep 17, 26	43.58%	+0.5%	-9.5%	-8.1%	+26.6%	+82.1%	+162.7%	+236.5%
1-Year Volatility	Sep 17, 26	45.55%	+0.0%	+1.5%	+9.0%	+24.1%	+30.6%	+98.4%	+114.2%
14-Day RSI	Sep 17, 26	45.82	+6.4%	-2.2%	-32.9%	-7.4%	-37.0%	-2.6%	-16.4%
Beta	Sep 17, 26	1.74	0.0%	+1.8%	+4.8%	+34.9%	+37.0%	+65.7%	+47.5%
ATR	Sep 17, 26	$2.82	-2.2%	-18.4%	-10.3%	+57.7%	+98.8%	+878.4%	+1148.3%
Price	Sep 18, 26	$79.10	+0.9%	-0.9%	-3.5%	+17.1%	+29.6%	+266.9%	+317.9%
200-Day SMA	Sep 17, 26	$73.34	+0.1%	+1.6%	+7.4%	+37.6%	+74.7%	+264.5%	+331.1%
50-Day SMA	Sep 17, 26	$80.02	-0.0%	-0.3%	+12.2%	+17.4%	+46.9%	+269.6%	+335.7%
20-Day SMA	Sep 17, 26	$79.87	+0.0%	-1.6%	+8.1%	+17.9%	+40.4%	+268.1%	+320.5%

1-Month Volatility History

Date	Value	Change
Sep 18, 2026	38.30%	+14.6%
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	13.08%	-29.4%
Dec 31, 2015	18.52%	-3.2%
Dec 31, 2014	19.13%	+90.5%
Dec 31, 2013	10.04%	-31.4%
Dec 31, 2012	14.63%	-56.6%
Dec 31, 2011	33.70%	+115.5%
Dec 31, 2010	15.64%	-41.2%
Dec 31, 2009	26.61%	-62.8%

Date	Value	Change
Dec 31, 2008	71.59%	+165.7%
Dec 31, 2007	26.94%	+25.9%
Dec 31, 2006	21.40%	-16.7%
Dec 31, 2005	25.68%	+27.7%
Dec 31, 2004	20.11%	-1.9%
Dec 31, 2003	20.49%	-16.0%
Dec 31, 2002	24.39%	-28.3%
Dec 31, 2001	34.01%	-65.4%
Dec 31, 2000	98.19%	+178.0%
Dec 31, 1999	35.32%	-9.1%
Dec 31, 1998	38.85%	+59.3%
Dec 31, 1997	24.39%	-15.7%
Dec 31, 1996	28.93%	-31.2%
Dec 31, 1995	42.07%	+10.3%
Dec 31, 1994	38.13%	-10.3%
Dec 31, 1993	42.52%	-35.5%
Dec 31, 1992	65.94%	+40.0%
Dec 31, 1991	47.11%	-

FAQ

What is the current 1-month volatility of APH?: As of today, APH 1-month volatility is 38.30%
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

43.58%

September 17, 2026

Summary

Current Value: As of today, APH 3-month volatility is 43.58%, up +0.46% on September 17, 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 23.84% on September 19, 2025

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 17, 26	43.58%	+0.5%	-9.5%	-8.1%	+26.6%	+82.1%	+162.7%	+236.5%
10-Day Volatility	Sep 17, 26	46.12%	+0.5%	+16.1%	-17.3%	+57.1%	+31.6%	+321.6%	+302.4%
1-Month Volatility	Sep 17, 26	38.30%	-12.9%	-21.3%	-21.4%	+12.5%	+37.5%	+236.6%	+251.4%
1-Year Volatility	Sep 17, 26	45.55%	+0.0%	+1.5%	+9.0%	+24.1%	+30.6%	+98.4%	+114.2%
14-Day RSI	Sep 17, 26	45.82	+6.4%	-2.2%	-32.9%	-7.4%	-37.0%	-2.6%	-16.4%
Beta	Sep 17, 26	1.74	0.0%	+1.8%	+4.8%	+34.9%	+37.0%	+65.7%	+47.5%
ATR	Sep 17, 26	$2.82	-2.2%	-18.4%	-10.3%	+57.7%	+98.8%	+878.4%	+1148.3%
Price	Sep 18, 26	$79.10	+0.9%	-0.9%	-3.5%	+17.1%	+29.6%	+266.9%	+317.9%
200-Day SMA	Sep 17, 26	$73.34	+0.1%	+1.6%	+7.4%	+37.6%	+74.7%	+264.5%	+331.1%
50-Day SMA	Sep 17, 26	$80.02	-0.0%	-0.3%	+12.2%	+17.4%	+46.9%	+269.6%	+335.7%
20-Day SMA	Sep 17, 26	$79.87	+0.0%	-1.6%	+8.1%	+17.9%	+40.4%	+268.1%	+320.5%

3-Month Volatility History

Date	Value	Change
Sep 18, 2026	43.58%	+27.5%
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	21.73%	+33.0%
Dec 31, 2019	16.34%	-41.0%
Dec 31, 2018	27.70%	+129.1%
Dec 31, 2017	12.09%	-14.7%
Dec 31, 2016	14.17%	-36.6%
Dec 31, 2015	22.35%	-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	42.34%	+94.8%
Dec 31, 2010	21.74%	-31.6%
Dec 31, 2009	31.78%	-65.5%

Date	Value	Change
Dec 31, 2008	92.02%	+208.7%
Dec 31, 2007	29.81%	+24.8%
Dec 31, 2006	23.89%	+8.5%
Dec 31, 2005	22.01%	+0.1%
Dec 31, 2004	21.98%	-5.0%
Dec 31, 2003	23.14%	-49.8%
Dec 31, 2002	46.07%	+33.2%
Dec 31, 2001	34.60%	-59.6%
Dec 31, 2000	85.59%	+151.0%
Dec 31, 1999	34.10%	-22.3%
Dec 31, 1998	43.89%	+38.1%
Dec 31, 1997	31.78%	+18.0%
Dec 31, 1996	26.94%	-33.6%
Dec 31, 1995	40.57%	+13.6%
Dec 31, 1994	35.72%	-17.4%
Dec 31, 1993	43.23%	-26.1%
Dec 31, 1992	58.50%	+14.9%
Dec 31, 1991	50.90%	-

FAQ

What is the current 3-month volatility of APH?: As of today, APH 3-month volatility is 43.58%
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 23.84% on September 19, 2025

1-Year

45.55%

September 17, 2026

Summary

Current Value: As of today, APH 1-year volatility is 45.55%, up +0.02% on September 17, 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 45.56% on September 17, 2026
1-Year Low: APH 1-year volatility reached a 1-year low of 34.65% on January 27, 2026

Performance

APH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 17, 26	45.55%	+0.0%	+1.5%	+9.0%	+24.1%	+30.6%	+98.4%	+114.2%
10-Day Volatility	Sep 17, 26	46.12%	+0.5%	+16.1%	-17.3%	+57.1%	+31.6%	+321.6%	+302.4%
1-Month Volatility	Sep 17, 26	38.30%	-12.9%	-21.3%	-21.4%	+12.5%	+37.5%	+236.6%	+251.4%
3-Month Volatility	Sep 17, 26	43.58%	+0.5%	-9.5%	-8.1%	+26.6%	+82.1%	+162.7%	+236.5%
1-Year Volatility	Sep 17, 26	45.55%	+0.0%	+1.5%	+9.0%	+24.1%	+30.6%	+98.4%	+114.2%
14-Day RSI	Sep 17, 26	45.82	+6.4%	-2.2%	-32.9%	-7.4%	-37.0%	-2.6%	-16.4%
Beta	Sep 17, 26	1.74	0.0%	+1.8%	+4.8%	+34.9%	+37.0%	+65.7%	+47.5%
ATR	Sep 17, 26	$2.82	-2.2%	-18.4%	-10.3%	+57.7%	+98.8%	+878.4%	+1148.3%
Price	Sep 18, 26	$79.10	+0.9%	-0.9%	-3.5%	+17.1%	+29.6%	+266.9%	+317.9%
200-Day SMA	Sep 17, 26	$73.34	+0.1%	+1.6%	+7.4%	+37.6%	+74.7%	+264.5%	+331.1%
50-Day SMA	Sep 17, 26	$80.02	-0.0%	-0.3%	+12.2%	+17.4%	+46.9%	+269.6%	+335.7%
20-Day SMA	Sep 17, 26	$79.87	+0.0%	-1.6%	+8.1%	+17.9%	+40.4%	+268.1%	+320.5%

1-Year Volatility History

Date	Value	Change
Sep 18, 2026	45.55%	+24.1%
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	22.06%	+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	35.04%	+18.5%
Dec 31, 2010	29.56%	-35.1%
Dec 31, 2009	45.53%	-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	42.00%	-21.6%
Dec 31, 2001	53.54%	-31.3%
Dec 31, 2000	77.93%	+153.4%
Dec 31, 1999	30.75%	-25.7%
Dec 31, 1998	41.37%	+47.2%
Dec 31, 1997	28.10%	-16.8%
Dec 31, 1996	33.78%	-19.0%
Dec 31, 1995	41.71%	+20.4%
Dec 31, 1994	34.65%	-28.1%
Dec 31, 1993	48.17%	+3.5%
Dec 31, 1992	46.53%	-8.6%
Dec 31, 1991	50.90%	-

FAQ

What is the current 1-year volatility of APH?: As of today, APH 1-year volatility is 45.55%
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 45.56% on September 17, 2026
What is APH 1-year volatility 1-year low?: APH 1-year volatility reached a 1-year low of 34.65% on January 27, 2026

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