What is the current 10-day volatility of REGN?

As of today, REGN 10-day volatility is 32.55%

What 10-day volatility category does REGN fall into?

Based on its current 10-day historical volatility, REGN falls into the moderate volatility category

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

REGN 10-day volatility reached a 1-year high of 105.21% on June 9, 2025

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

REGN 10-day volatility reached a 1-year low of 16.39% on December 31, 2025

What is the current 1-month volatility of REGN?

As of today, REGN 1-month volatility is 26.80%

What 1-month volatility category does REGN fall into?

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

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

REGN 1-month volatility reached a 1-year high of 85.67% on May 30, 2025

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

REGN 1-month volatility reached a 1-year low of 20.92% on July 11, 2025

What is the current 3-month volatility of REGN?

As of today, REGN 3-month volatility is 30.81%

What 3-month volatility category does REGN fall into?

Based on its current 3-month historical volatility, REGN falls into the moderate volatility category

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

REGN 3-month volatility reached a 1-year high of 60.09% on June 9, 2025

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

REGN 3-month volatility reached a 1-year low of 25.62% on September 10, 2025

What is the current 1-year volatility of REGN?

As of today, REGN 1-year volatility is 41.01%

What 1-year volatility category does REGN fall into?

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

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

REGN 1-year volatility reached a 1-year high of 41.79% on December 11, 2025

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

REGN 1-year volatility reached a 1-year low of 24.01% on February 19, 2025

REGN Stock Volatility History & Chart Since 1991

10-Day

32.55%

February 19, 2026

Summary

Current Value: As of today, REGN 10-day volatility is 32.55%, down -1.30% on February 19, 2026
Value Category: Based on its current 10-day historical volatility, REGN falls into the moderate volatility category
1-Year High: REGN 10-day volatility reached a 1-year high of 105.21% on June 9, 2025
1-Year Low: REGN 10-day volatility reached a 1-year low of 16.39% on December 31, 2025

10-Day Volatility Chart

Performance

REGN Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Feb 19, 26	32.55%	-1.3%	-8.2%	+11.7%	+98.6%	+2.6%	+36.6%	+257.3%
1-Month Volatility	Feb 19, 26	26.80%	-0.3%	-2.6%	-40.8%	-2.5%	-13.3%	+1.5%	+11.9%
3-Month Volatility	Feb 19, 26	30.81%	-1.9%	-19.3%	-19.9%	-16.6%	+6.0%	+12.7%	+20.8%
1-Year Volatility	Feb 19, 26	41.01%	+0.1%	-0.6%	+0.7%	-0.9%	+70.8%	+18.9%	-3.5%
14-Day RSI	Feb 19, 26	53.99	-6.3%	+30.4%	-21.0%	-11.5%	+14.1%	+5.9%	+71.1%
Beta	Feb 19, 26	0.56	0.0%	0.0%	-5.1%	-3.5%	-26.3%	-6.7%	+1.8%
ATR	Feb 19, 26	$22.60	-1.3%	+7.1%	+7.7%	+35.1%	+8.9%	+27.3%	+69.9%
Price	Feb 19, 26	$782.38	-1.2%	+6.7%	+11.3%	+1.4%	+14.1%	+4.5%	+66.3%
200-Day SMA	Feb 19, 26	$631.14	+0.1%	+3.4%	+6.0%	+4.5%	-32.5%	-7.2%	+11.7%
50-Day SMA	Feb 19, 26	$763.91	+0.2%	+3.1%	+25.6%	+8.0%	+7.8%	+3.7%	+53.3%

10-Day Volatility History

Date	Value	Change
Feb 19, 2026	32.55%	+98.6%
Dec 31, 2025	16.39%	-38.5%
Dec 31, 2024	26.64%	+29.5%
Dec 31, 2023	20.57%	+16.5%
Dec 31, 2022	17.66%	-31.5%
Dec 31, 2021	25.79%	+48.0%
Dec 31, 2020	17.42%	+38.4%
Dec 31, 2019	12.59%	-72.9%
Dec 31, 2018	46.50%	+147.3%
Dec 31, 2017	18.80%	-29.5%
Dec 31, 2016	26.65%	+29.7%
Dec 31, 2015	20.54%	-54.0%
Dec 31, 2014	44.70%	+49.1%
Dec 31, 2013	29.97%	+52.9%
Dec 31, 2012	19.60%	-30.8%
Dec 31, 2011	28.31%	+30.3%
Dec 31, 2010	21.72%	-36.3%
Dec 31, 2009	34.12%	-42.1%

Date	Value	Change
Dec 31, 2008	58.98%	+34.7%
Dec 31, 2007	43.78%	+119.4%
Dec 31, 2006	19.95%	-82.7%
Dec 31, 2005	115.18%	+282.1%
Dec 31, 2004	30.14%	-45.6%
Dec 31, 2003	55.41%	+41.5%
Dec 31, 2002	39.15%	+9.1%
Dec 31, 2001	35.88%	-65.9%
Dec 31, 2000	105.16%	-4.4%
Dec 31, 1999	109.99%	+31.3%
Dec 31, 1998	83.77%	+77.8%
Dec 31, 1997	47.11%	-37.3%
Dec 31, 1996	75.13%	+35.6%
Dec 31, 1995	55.39%	-13.4%
Dec 31, 1994	63.98%	+21.9%
Dec 31, 1993	52.47%	-25.5%
Dec 31, 1992	70.47%	+13.7%
Dec 31, 1991	61.96%	-

FAQ

What is the current 10-day volatility of REGN?
As of today, REGN 10-day volatility is 32.55%
What 10-day volatility category does REGN fall into?
Based on its current 10-day historical volatility, REGN falls into the moderate volatility category
What is REGN 10-day volatility 1-year high?
REGN 10-day volatility reached a 1-year high of 105.21% on June 9, 2025
What is REGN 10-day volatility 1-year low?
REGN 10-day volatility reached a 1-year low of 16.39% on December 31, 2025

1-Month

26.80%

February 19, 2026

Summary

Current Value: As of today, REGN 1-month volatility is 26.80%, down -0.33% on February 19, 2026
Value Category: Based on its current 1-month historical volatility, REGN falls into the moderate volatility category
1-Year High: REGN 1-month volatility reached a 1-year high of 85.67% on May 30, 2025
1-Year Low: REGN 1-month volatility reached a 1-year low of 20.92% on July 11, 2025

Performance

REGN Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Feb 19, 26	26.80%	-0.3%	-2.6%	-40.8%	-2.5%	-13.3%	+1.5%	+11.9%
10-Day Volatility	Feb 19, 26	32.55%	-1.3%	-8.2%	+11.7%	+98.6%	+2.6%	+36.6%	+257.3%
3-Month Volatility	Feb 19, 26	30.81%	-1.9%	-19.3%	-19.9%	-16.6%	+6.0%	+12.7%	+20.8%
1-Year Volatility	Feb 19, 26	41.01%	+0.1%	-0.6%	+0.7%	-0.9%	+70.8%	+18.9%	-3.5%
14-Day RSI	Feb 19, 26	53.99	-6.3%	+30.4%	-21.0%	-11.5%	+14.1%	+5.9%	+71.1%
Beta	Feb 19, 26	0.56	0.0%	0.0%	-5.1%	-3.5%	-26.3%	-6.7%	+1.8%
ATR	Feb 19, 26	$22.60	-1.3%	+7.1%	+7.7%	+35.1%	+8.9%	+27.3%	+69.9%
Price	Feb 19, 26	$782.38	-1.2%	+6.7%	+11.3%	+1.4%	+14.1%	+4.5%	+66.3%
200-Day SMA	Feb 19, 26	$631.14	+0.1%	+3.4%	+6.0%	+4.5%	-32.5%	-7.2%	+11.7%
50-Day SMA	Feb 19, 26	$763.91	+0.2%	+3.1%	+25.6%	+8.0%	+7.8%	+3.7%	+53.3%

1-Month Volatility History

Date	Value	Change
Feb 19, 2026	26.80%	-10.8%
Dec 31, 2025	30.05%	+10.6%
Dec 31, 2024	27.17%	+39.5%
Dec 31, 2023	19.48%	-4.1%
Dec 31, 2022	20.32%	-28.2%
Dec 31, 2021	28.30%	+21.4%
Dec 31, 2020	23.32%	+66.5%
Dec 31, 2019	14.01%	-65.7%
Dec 31, 2018	40.82%	+93.1%
Dec 31, 2017	21.14%	-18.6%
Dec 31, 2016	25.98%	-7.6%
Dec 31, 2015	28.12%	-25.2%
Dec 31, 2014	37.60%	+39.7%
Dec 31, 2013	26.92%	+15.3%
Dec 31, 2012	23.35%	-38.5%
Dec 31, 2011	37.97%	+83.7%
Dec 31, 2010	20.67%	-34.5%
Dec 31, 2009	31.56%	-59.3%

Date	Value	Change
Dec 31, 2008	77.52%	+64.0%
Dec 31, 2007	47.27%	+81.0%
Dec 31, 2006	26.11%	-69.7%
Dec 31, 2005	86.10%	+173.9%
Dec 31, 2004	31.44%	-29.9%
Dec 31, 2003	44.84%	-20.7%
Dec 31, 2002	56.57%	+26.6%
Dec 31, 2001	44.70%	-56.1%
Dec 31, 2000	101.76%	-3.2%
Dec 31, 1999	105.08%	+39.8%
Dec 31, 1998	75.17%	+33.1%
Dec 31, 1997	56.49%	-28.8%
Dec 31, 1996	79.29%	+39.8%
Dec 31, 1995	56.71%	-20.8%
Dec 31, 1994	71.61%	+75.9%
Dec 31, 1993	40.71%	-45.3%
Dec 31, 1992	74.41%	+30.0%
Dec 31, 1991	57.22%	-

FAQ

What is the current 1-month volatility of REGN?
As of today, REGN 1-month volatility is 26.80%
What 1-month volatility category does REGN fall into?
Based on its current 1-month historical volatility, REGN falls into the moderate volatility category
What is REGN 1-month volatility 1-year high?
REGN 1-month volatility reached a 1-year high of 85.67% on May 30, 2025
What is REGN 1-month volatility 1-year low?
REGN 1-month volatility reached a 1-year low of 20.92% on July 11, 2025

3-Month

30.81%

February 19, 2026

Summary

Current Value: As of today, REGN 3-month volatility is 30.81%, down -1.91% on February 19, 2026
Value Category: Based on its current 3-month historical volatility, REGN falls into the moderate volatility category
1-Year High: REGN 3-month volatility reached a 1-year high of 60.09% on June 9, 2025
1-Year Low: REGN 3-month volatility reached a 1-year low of 25.62% on September 10, 2025

Performance

REGN Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Feb 19, 26	30.81%	-1.9%	-19.3%	-19.9%	-16.6%	+6.0%	+12.7%	+20.8%
10-Day Volatility	Feb 19, 26	32.55%	-1.3%	-8.2%	+11.7%	+98.6%	+2.6%	+36.6%	+257.3%
1-Month Volatility	Feb 19, 26	26.80%	-0.3%	-2.6%	-40.8%	-2.5%	-13.3%	+1.5%	+11.9%
1-Year Volatility	Feb 19, 26	41.01%	+0.1%	-0.6%	+0.7%	-0.9%	+70.8%	+18.9%	-3.5%
14-Day RSI	Feb 19, 26	53.99	-6.3%	+30.4%	-21.0%	-11.5%	+14.1%	+5.9%	+71.1%
Beta	Feb 19, 26	0.56	0.0%	0.0%	-5.1%	-3.5%	-26.3%	-6.7%	+1.8%
ATR	Feb 19, 26	$22.60	-1.3%	+7.1%	+7.7%	+35.1%	+8.9%	+27.3%	+69.9%
Price	Feb 19, 26	$782.38	-1.2%	+6.7%	+11.3%	+1.4%	+14.1%	+4.5%	+66.3%
200-Day SMA	Feb 19, 26	$631.14	+0.1%	+3.4%	+6.0%	+4.5%	-32.5%	-7.2%	+11.7%
50-Day SMA	Feb 19, 26	$763.91	+0.2%	+3.1%	+25.6%	+8.0%	+7.8%	+3.7%	+53.3%

3-Month Volatility History

Date	Value	Change
Feb 19, 2026	30.81%	-20.4%
Dec 31, 2025	38.71%	+40.1%
Dec 31, 2024	27.63%	+47.6%
Dec 31, 2023	18.72%	-29.3%
Dec 31, 2022	26.47%	-14.2%
Dec 31, 2021	30.85%	-3.3%
Dec 31, 2020	31.90%	+31.3%
Dec 31, 2019	24.30%	-36.1%
Dec 31, 2018	38.05%	+64.3%
Dec 31, 2017	23.16%	-45.1%
Dec 31, 2016	42.21%	+33.2%
Dec 31, 2015	31.68%	-15.9%
Dec 31, 2014	37.67%	-4.7%
Dec 31, 2013	39.53%	-18.6%
Dec 31, 2012	48.57%	-8.2%
Dec 31, 2011	52.89%	+11.0%
Dec 31, 2010	47.65%	-11.7%
Dec 31, 2009	53.95%	-39.3%

Date	Value	Change
Dec 31, 2008	88.81%	+31.6%
Dec 31, 2007	67.47%	+52.2%
Dec 31, 2006	44.32%	-46.1%
Dec 31, 2005	82.30%	+100.0%
Dec 31, 2004	41.15%	-31.3%
Dec 31, 2003	59.91%	-9.6%
Dec 31, 2002	66.26%	+10.7%
Dec 31, 2001	59.86%	-45.5%
Dec 31, 2000	109.87%	+32.6%
Dec 31, 1999	82.86%	-3.7%
Dec 31, 1998	86.01%	+30.0%
Dec 31, 1997	66.18%	+6.3%
Dec 31, 1996	62.27%	-1.4%
Dec 31, 1995	63.13%	-8.7%
Dec 31, 1994	69.16%	+54.3%
Dec 31, 1993	44.81%	-36.3%
Dec 31, 1992	70.36%	-7.5%
Dec 31, 1991	76.04%	-

FAQ

What is the current 3-month volatility of REGN?
As of today, REGN 3-month volatility is 30.81%
What 3-month volatility category does REGN fall into?
Based on its current 3-month historical volatility, REGN falls into the moderate volatility category
What is REGN 3-month volatility 1-year high?
REGN 3-month volatility reached a 1-year high of 60.09% on June 9, 2025
What is REGN 3-month volatility 1-year low?
REGN 3-month volatility reached a 1-year low of 25.62% on September 10, 2025

1-Year

41.01%

February 19, 2026

Summary

Current Value: As of today, REGN 1-year volatility is 41.01%, up +0.05% on February 19, 2026
Value Category: Based on its current 1-year historical volatility, REGN falls into the high volatility category
1-Year High: REGN 1-year volatility reached a 1-year high of 41.79% on December 11, 2025
1-Year Low: REGN 1-year volatility reached a 1-year low of 24.01% on February 19, 2025

Performance

REGN Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Feb 19, 26	41.01%	+0.1%	-0.6%	+0.7%	-0.9%	+70.8%	+18.9%	-3.5%
10-Day Volatility	Feb 19, 26	32.55%	-1.3%	-8.2%	+11.7%	+98.6%	+2.6%	+36.6%	+257.3%
1-Month Volatility	Feb 19, 26	26.80%	-0.3%	-2.6%	-40.8%	-2.5%	-13.3%	+1.5%	+11.9%
3-Month Volatility	Feb 19, 26	30.81%	-1.9%	-19.3%	-19.9%	-16.6%	+6.0%	+12.7%	+20.8%
1-Year Volatility	Feb 19, 26	41.01%	+0.1%	-0.6%	+0.7%	-0.9%	+70.8%	+18.9%	-3.5%
14-Day RSI	Feb 19, 26	53.99	-6.3%	+30.4%	-21.0%	-11.5%	+14.1%	+5.9%	+71.1%
Beta	Feb 19, 26	0.56	0.0%	0.0%	-5.1%	-3.5%	-26.3%	-6.7%	+1.8%
ATR	Feb 19, 26	$22.60	-1.3%	+7.1%	+7.7%	+35.1%	+8.9%	+27.3%	+69.9%
Price	Feb 19, 26	$782.38	-1.2%	+6.7%	+11.3%	+1.4%	+14.1%	+4.5%	+66.3%
200-Day SMA	Feb 19, 26	$631.14	+0.1%	+3.4%	+6.0%	+4.5%	-32.5%	-7.2%	+11.7%
50-Day SMA	Feb 19, 26	$763.91	+0.2%	+3.1%	+25.6%	+8.0%	+7.8%	+3.7%	+53.3%

1-Year Volatility History

Date	Value	Change
Feb 19, 2026	41.01%	-0.9%
Dec 31, 2025	41.40%	+89.3%
Dec 31, 2024	21.87%	-9.1%
Dec 31, 2023	24.07%	-28.6%
Dec 31, 2022	33.71%	+29.2%
Dec 31, 2021	26.10%	-39.6%
Dec 31, 2020	43.19%	+48.9%
Dec 31, 2019	29.01%	-10.0%
Dec 31, 2018	32.22%	+10.4%
Dec 31, 2017	29.18%	-27.4%
Dec 31, 2016	40.20%	+21.7%
Dec 31, 2015	33.02%	-11.2%
Dec 31, 2014	37.18%	-8.0%
Dec 31, 2013	40.43%	-11.8%
Dec 31, 2012	45.84%	-25.8%
Dec 31, 2011	61.78%	+24.3%
Dec 31, 2010	49.70%	-6.6%
Dec 31, 2009	53.24%	-26.5%

Date	Value	Change
Dec 31, 2008	72.45%	+28.9%
Dec 31, 2007	56.19%	+20.6%
Dec 31, 2006	46.60%	-31.0%
Dec 31, 2005	67.50%	+26.6%
Dec 31, 2004	53.30%	-45.0%
Dec 31, 2003	96.89%	+30.3%
Dec 31, 2002	74.37%	+10.7%
Dec 31, 2001	67.18%	-54.5%
Dec 31, 2000	147.76%	+96.3%
Dec 31, 1999	75.27%	+1.9%
Dec 31, 1998	73.85%	-23.5%
Dec 31, 1997	96.59%	+46.7%
Dec 31, 1996	65.84%	-22.5%
Dec 31, 1995	84.95%	+3.8%
Dec 31, 1994	81.82%	+11.1%
Dec 31, 1993	73.66%	+3.4%
Dec 31, 1992	71.26%	-7.5%
Dec 31, 1991	77.01%	-

FAQ

What is the current 1-year volatility of REGN?
As of today, REGN 1-year volatility is 41.01%
What 1-year volatility category does REGN fall into?
Based on its current 1-year historical volatility, REGN falls into the high volatility category
What is REGN 1-year volatility 1-year high?
REGN 1-year volatility reached a 1-year high of 41.79% on December 11, 2025
What is REGN 1-year volatility 1-year low?
REGN 1-year volatility reached a 1-year low of 24.01% on February 19, 2025

Data Sources & References

REGN Official Website www.regeneron.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/872589/000087258926000004/0000872589-26-000004-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/872589/000087258926000008/0000872589-26-000008-index.htm
REGN Profile on Yahoo Finance finance.yahoo.com/quote/REGN
REGN Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/regn