What is the current 10-day volatility of STM?

As of today, STM 10-day volatility is 66.61%

What 10-day volatility category does STM fall into?

Based on its current 10-day historical volatility, STM falls into the extreme volatility category

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

STM 10-day volatility reached a 1-year high of 155.75% on April 16, 2025

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

STM 10-day volatility reached a 1-year low of 11.30% on December 31, 2025

What is the current 1-month volatility of STM?

As of today, STM 1-month volatility is 55.82%

What 1-month volatility category does STM fall into?

Based on its current 1-month historical volatility, STM falls into the high volatility category

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

STM 1-month volatility reached a 1-year high of 113.37% on April 25, 2025

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

STM 1-month volatility reached a 1-year low of 24.60% on January 2, 2026

What is the current 3-month volatility of STM?

As of today, STM 3-month volatility is 53.78%

What 3-month volatility category does STM fall into?

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

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

STM 3-month volatility reached a 1-year high of 77.29% on April 24, 2025

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

STM 3-month volatility reached a 1-year low of 37.11% on January 26, 2026

What is the current 1-year volatility of STM?

As of today, STM 1-year volatility is 48.30%

What 1-year volatility category does STM fall into?

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

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

STM 1-year volatility reached a 1-year high of 55.52% on February 13, 2026

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

STM 1-year volatility reached a 1-year low of 48.30% on April 9, 2026

STM Stock Volatility History & Chart Since 1994

10-Day

66.61%

April 9, 2026

Summary

Current Value: As of today, STM 10-day volatility is 66.61%, up +5.92% on April 9, 2026
Value Category: Based on its current 10-day historical volatility, STM falls into the extreme volatility category
1-Year High: STM 10-day volatility reached a 1-year high of 155.75% on April 16, 2025
1-Year Low: STM 10-day volatility reached a 1-year low of 11.30% on December 31, 2025

10-Day Volatility Chart

Performance

STM Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Apr 9, 26	66.61%	+5.9%	+2.8%	+30.0%	+489.5%	-50.9%	+73.8%	+95.4%
1-Month Volatility	Apr 9, 26	55.82%	-0.2%	+4.8%	+48.4%	+78.4%	-39.7%	+49.9%	+40.5%
3-Month Volatility	Apr 9, 26	53.78%	+1.9%	+10.8%	+10.9%	+20.2%	-22.5%	+47.1%	+23.2%
1-Year Volatility	Apr 9, 26	48.30%	-10.4%	-11.7%	-11.2%	-11.0%	-2.7%	+7.7%	+3.4%
14-Day RSI	Apr 9, 26	71.06	+15.6%	+27.5%	+5.3%	+26.7%	+53.7%	+39.8%	+26.1%
Beta	Apr 9, 26	2.08	0.0%	+8.3%	+14.3%	+15.6%	+20.9%	+35.1%	+33.3%
ATR	Apr 9, 26	$1.58	+3.0%	+6.3%	+107.9%	+202.7%	+15.0%	+3.1%	+45.5%
Price	Apr 9, 26	$39.14	+3.0%	+16.7%	+35.7%	+50.9%	+81.2%	-21.7%	-1.0%
200-Day SMA	Apr 9, 26	$28.54	+0.3%	+2.5%	+9.2%	+9.6%	+1.4%	-26.8%	-17.3%
50-Day SMA	Apr 9, 26	$32.87	+1.2%	+8.6%	+31.6%	+32.6%	+38.4%	-33.0%	-15.1%

10-Day Volatility History

Date	Value	Change
Apr 9, 2026	66.61%	+489.5%
Dec 31, 2025	11.30%	-60.9%
Dec 31, 2024	28.92%	+28.0%
Dec 31, 2023	22.59%	-26.0%
Dec 31, 2022	30.52%	+44.8%
Dec 31, 2021	21.08%	-0.2%
Dec 31, 2020	21.13%	+31.4%
Dec 31, 2019	16.08%	-53.7%
Dec 31, 2018	34.73%	+48.2%
Dec 31, 2017	23.43%	+47.8%
Dec 31, 2016	15.85%	-7.8%
Dec 31, 2015	17.19%	-33.8%
Dec 31, 2014	25.96%	-20.1%
Dec 31, 2013	32.50%	+61.4%
Dec 31, 2012	20.14%	-62.6%
Dec 31, 2011	53.87%	+199.8%
Dec 31, 2010	17.97%	-23.0%

Date	Value	Change
Dec 31, 2009	23.34%	-31.4%
Dec 31, 2008	34.03%	+177.6%
Dec 31, 2007	12.26%	+20.0%
Dec 31, 2006	10.22%	-31.1%
Dec 31, 2005	14.84%	-8.6%
Dec 31, 2004	16.23%	-31.2%
Dec 31, 2003	23.59%	-44.4%
Dec 31, 2002	42.44%	-6.9%
Dec 31, 2001	45.57%	-9.6%
Dec 31, 2000	50.39%	+83.2%
Dec 31, 1999	27.50%	-43.7%
Dec 31, 1998	48.85%	-15.5%
Dec 31, 1997	57.81%	+100.0%
Dec 31, 1996	28.91%	-67.4%
Dec 31, 1995	88.75%	+582.7%
Dec 31, 1994	13.00%	-

FAQ

What is the current 10-day volatility of STM?
As of today, STM 10-day volatility is 66.61%
What 10-day volatility category does STM fall into?
Based on its current 10-day historical volatility, STM falls into the extreme volatility category
What is STM 10-day volatility 1-year high?
STM 10-day volatility reached a 1-year high of 155.75% on April 16, 2025
What is STM 10-day volatility 1-year low?
STM 10-day volatility reached a 1-year low of 11.30% on December 31, 2025

1-Month

55.82%

April 9, 2026

Summary

Current Value: As of today, STM 1-month volatility is 55.82%, down -0.16% on April 9, 2026
Value Category: Based on its current 1-month historical volatility, STM falls into the high volatility category
1-Year High: STM 1-month volatility reached a 1-year high of 113.37% on April 25, 2025
1-Year Low: STM 1-month volatility reached a 1-year low of 24.60% on January 2, 2026

Performance

STM Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Apr 9, 26	55.82%	-0.2%	+4.8%	+48.4%	+78.4%	-39.7%	+49.9%	+40.5%
10-Day Volatility	Apr 9, 26	66.61%	+5.9%	+2.8%	+30.0%	+489.5%	-50.9%	+73.8%	+95.4%
3-Month Volatility	Apr 9, 26	53.78%	+1.9%	+10.8%	+10.9%	+20.2%	-22.5%	+47.1%	+23.2%
1-Year Volatility	Apr 9, 26	48.30%	-10.4%	-11.7%	-11.2%	-11.0%	-2.7%	+7.7%	+3.4%
14-Day RSI	Apr 9, 26	71.06	+15.6%	+27.5%	+5.3%	+26.7%	+53.7%	+39.8%	+26.1%
Beta	Apr 9, 26	2.08	0.0%	+8.3%	+14.3%	+15.6%	+20.9%	+35.1%	+33.3%
ATR	Apr 9, 26	$1.58	+3.0%	+6.3%	+107.9%	+202.7%	+15.0%	+3.1%	+45.5%
Price	Apr 9, 26	$39.14	+3.0%	+16.7%	+35.7%	+50.9%	+81.2%	-21.7%	-1.0%
200-Day SMA	Apr 9, 26	$28.54	+0.3%	+2.5%	+9.2%	+9.6%	+1.4%	-26.8%	-17.3%
50-Day SMA	Apr 9, 26	$32.87	+1.2%	+8.6%	+31.6%	+32.6%	+38.4%	-33.0%	-15.1%

1-Month Volatility History

Date	Value	Change
Apr 9, 2026	54.55%	+78.6%
Dec 31, 2025	30.54%	+25.2%
Dec 31, 2024	24.40%	+26.0%
Dec 31, 2023	19.37%	-37.0%
Dec 31, 2022	30.75%	-21.2%
Dec 31, 2021	39.04%	-34.4%
Dec 31, 2020	59.52%	+200.9%
Dec 31, 2019	19.78%	-58.3%
Dec 31, 2018	47.38%	+100.4%
Dec 31, 2017	23.64%	-7.7%
Dec 31, 2016	25.62%	-0.2%
Dec 31, 2015	25.68%	-9.0%
Dec 31, 2014	28.22%	-13.1%
Dec 31, 2013	32.47%	+40.9%
Dec 31, 2012	23.05%	-48.0%
Dec 31, 2011	44.31%	+41.0%
Dec 31, 2010	31.42%	+50.0%

Date	Value	Change
Dec 31, 2009	20.94%	-63.2%
Dec 31, 2008	56.91%	+185.1%
Dec 31, 2007	19.96%	+35.6%
Dec 31, 2006	14.72%	-30.4%
Dec 31, 2005	21.15%	+21.6%
Dec 31, 2004	17.40%	-29.4%
Dec 31, 2003	24.64%	-55.0%
Dec 31, 2002	54.77%	-22.4%
Dec 31, 2001	70.57%	-0.9%
Dec 31, 2000	71.22%	+59.5%
Dec 31, 1999	44.66%	-25.3%
Dec 31, 1998	59.82%	-22.8%
Dec 31, 1997	77.47%	+129.9%
Dec 31, 1996	33.69%	-53.2%
Dec 31, 1995	71.96%	+321.3%
Dec 31, 1994	17.08%	-

FAQ

What is the current 1-month volatility of STM?
As of today, STM 1-month volatility is 55.82%
What 1-month volatility category does STM fall into?
Based on its current 1-month historical volatility, STM falls into the high volatility category
What is STM 1-month volatility 1-year high?
STM 1-month volatility reached a 1-year high of 113.37% on April 25, 2025
What is STM 1-month volatility 1-year low?
STM 1-month volatility reached a 1-year low of 24.60% on January 2, 2026

3-Month

53.78%

April 9, 2026

Summary

Current Value: As of today, STM 3-month volatility is 53.78%, up +1.88% on April 9, 2026
Value Category: Based on its current 3-month historical volatility, STM falls into the high volatility category
1-Year High: STM 3-month volatility reached a 1-year high of 77.29% on April 24, 2025
1-Year Low: STM 3-month volatility reached a 1-year low of 37.11% on January 26, 2026

Performance

STM Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Apr 9, 26	53.78%	+1.9%	+10.8%	+10.9%	+20.2%	-22.5%	+47.1%	+23.2%
10-Day Volatility	Apr 9, 26	66.61%	+5.9%	+2.8%	+30.0%	+489.5%	-50.9%	+73.8%	+95.4%
1-Month Volatility	Apr 9, 26	55.82%	-0.2%	+4.8%	+48.4%	+78.4%	-39.7%	+49.9%	+40.5%
1-Year Volatility	Apr 9, 26	48.30%	-10.4%	-11.7%	-11.2%	-11.0%	-2.7%	+7.7%	+3.4%
14-Day RSI	Apr 9, 26	71.06	+15.6%	+27.5%	+5.3%	+26.7%	+53.7%	+39.8%	+26.1%
Beta	Apr 9, 26	2.08	0.0%	+8.3%	+14.3%	+15.6%	+20.9%	+35.1%	+33.3%
ATR	Apr 9, 26	$1.58	+3.0%	+6.3%	+107.9%	+202.7%	+15.0%	+3.1%	+45.5%
Price	Apr 9, 26	$39.14	+3.0%	+16.7%	+35.7%	+50.9%	+81.2%	-21.7%	-1.0%
200-Day SMA	Apr 9, 26	$28.54	+0.3%	+2.5%	+9.2%	+9.6%	+1.4%	-26.8%	-17.3%
50-Day SMA	Apr 9, 26	$32.87	+1.2%	+8.6%	+31.6%	+32.6%	+38.4%	-33.0%	-15.1%

3-Month Volatility History

Date	Value	Change
Apr 9, 2026	53.78%	+21.1%
Dec 31, 2025	44.41%	+48.2%
Dec 31, 2024	29.97%	-5.6%
Dec 31, 2023	31.74%	-37.1%
Dec 31, 2022	50.48%	+46.3%
Dec 31, 2021	34.51%	-28.6%
Dec 31, 2020	48.33%	+53.7%
Dec 31, 2019	31.44%	-39.0%
Dec 31, 2018	51.52%	+45.2%
Dec 31, 2017	35.49%	+4.5%
Dec 31, 2016	33.97%	+18.0%
Dec 31, 2015	28.78%	-25.5%
Dec 31, 2014	38.62%	+19.2%
Dec 31, 2013	32.40%	-13.8%
Dec 31, 2012	37.60%	-40.0%
Dec 31, 2011	62.64%	+87.0%
Dec 31, 2010	33.49%	-6.1%

Date	Value	Change
Dec 31, 2009	35.67%	-56.1%
Dec 31, 2008	81.27%	+208.1%
Dec 31, 2007	26.38%	+36.3%
Dec 31, 2006	19.36%	-17.1%
Dec 31, 2005	23.34%	+0.3%
Dec 31, 2004	23.28%	-20.3%
Dec 31, 2003	29.21%	-67.1%
Dec 31, 2002	88.67%	+41.0%
Dec 31, 2001	62.87%	-18.8%
Dec 31, 2000	77.47%	+43.0%
Dec 31, 1999	54.16%	-18.0%
Dec 31, 1998	66.08%	+2.5%
Dec 31, 1997	64.44%	+60.0%
Dec 31, 1996	40.27%	-32.0%
Dec 31, 1995	59.21%	+246.7%
Dec 31, 1994	17.08%	-

FAQ

What is the current 3-month volatility of STM?
As of today, STM 3-month volatility is 53.78%
What 3-month volatility category does STM fall into?
Based on its current 3-month historical volatility, STM falls into the high volatility category
What is STM 3-month volatility 1-year high?
STM 3-month volatility reached a 1-year high of 77.29% on April 24, 2025
What is STM 3-month volatility 1-year low?
STM 3-month volatility reached a 1-year low of 37.11% on January 26, 2026

1-Year

48.30%

April 9, 2026

Summary

Current Value: As of today, STM 1-year volatility is 48.30%, down -10.39% on April 9, 2026
Value Category: Based on its current 1-year historical volatility, STM falls into the high volatility category
1-Year High: STM 1-year volatility reached a 1-year high of 55.52% on February 13, 2026
1-Year Low: STM 1-year volatility reached a 1-year low of 48.30% on April 9, 2026

Performance

STM Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Apr 9, 26	48.30%	-10.4%	-11.7%	-11.2%	-11.0%	-2.7%	+7.7%	+3.4%
10-Day Volatility	Apr 9, 26	66.61%	+5.9%	+2.8%	+30.0%	+489.5%	-50.9%	+73.8%	+95.4%
1-Month Volatility	Apr 9, 26	55.82%	-0.2%	+4.8%	+48.4%	+78.4%	-39.7%	+49.9%	+40.5%
3-Month Volatility	Apr 9, 26	53.78%	+1.9%	+10.8%	+10.9%	+20.2%	-22.5%	+47.1%	+23.2%
1-Year Volatility	Apr 9, 26	48.30%	-10.4%	-11.7%	-11.2%	-11.0%	-2.7%	+7.7%	+3.4%
14-Day RSI	Apr 9, 26	71.06	+15.6%	+27.5%	+5.3%	+26.7%	+53.7%	+39.8%	+26.1%
Beta	Apr 9, 26	2.08	0.0%	+8.3%	+14.3%	+15.6%	+20.9%	+35.1%	+33.3%
ATR	Apr 9, 26	$1.58	+3.0%	+6.3%	+107.9%	+202.7%	+15.0%	+3.1%	+45.5%
Price	Apr 9, 26	$39.14	+3.0%	+16.7%	+35.7%	+50.9%	+81.2%	-21.7%	-1.0%
200-Day SMA	Apr 9, 26	$28.54	+0.3%	+2.5%	+9.2%	+9.6%	+1.4%	-26.8%	-17.3%
50-Day SMA	Apr 9, 26	$32.87	+1.2%	+8.6%	+31.6%	+32.6%	+38.4%	-33.0%	-15.1%

1-Year Volatility History

Date	Value	Change
Apr 9, 2026	49.86%	-8.2%
Dec 31, 2025	54.29%	+41.2%
Dec 31, 2024	38.46%	+13.9%
Dec 31, 2023	33.76%	-29.2%
Dec 31, 2022	47.68%	+38.3%
Dec 31, 2021	34.47%	-43.2%
Dec 31, 2020	60.66%	+46.2%
Dec 31, 2019	41.48%	+4.1%
Dec 31, 2018	39.85%	+20.5%
Dec 31, 2017	33.06%	-17.0%
Dec 31, 2016	39.84%	+11.9%
Dec 31, 2015	35.60%	+14.5%
Dec 31, 2014	31.09%	-12.1%
Dec 31, 2013	35.37%	-24.4%
Dec 31, 2012	46.79%	-11.5%
Dec 31, 2011	52.87%	+43.4%
Dec 31, 2010	36.87%	-31.5%

Date	Value	Change
Dec 31, 2009	53.80%	-2.1%
Dec 31, 2008	54.93%	+102.6%
Dec 31, 2007	27.11%	+2.2%
Dec 31, 2006	26.53%	+3.8%
Dec 31, 2005	25.55%	-7.6%
Dec 31, 2004	27.64%	-32.3%
Dec 31, 2003	40.81%	-37.3%
Dec 31, 2002	65.10%	+1.4%
Dec 31, 2001	64.21%	-12.5%
Dec 31, 2000	73.42%	+25.5%
Dec 31, 1999	58.52%	-1.9%
Dec 31, 1998	59.68%	+22.4%
Dec 31, 1997	48.76%	+5.0%
Dec 31, 1996	46.46%	-2.2%
Dec 31, 1995	47.49%	+178.0%
Dec 31, 1994	17.08%	-

FAQ

What is the current 1-year volatility of STM?
As of today, STM 1-year volatility is 48.30%
What 1-year volatility category does STM fall into?
Based on its current 1-year historical volatility, STM falls into the high volatility category
What is STM 1-year volatility 1-year high?
STM 1-year volatility reached a 1-year high of 55.52% on February 13, 2026
What is STM 1-year volatility 1-year low?
STM 1-year volatility reached a 1-year low of 48.30% on April 9, 2026

Data Sources & References

STM Official Website www.st.com/content/st_com/en.html
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/932787/000093278726000003/0000932787-26-000003-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/932787/000093278726000009/0000932787-26-000009-index.htm
STM Profile on Yahoo Finance finance.yahoo.com/quote/STM
STM Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/stm