What is the current 10-day volatility of WRB?

As of today, WRB 10-day volatility is 15.98%

What 10-day volatility category does WRB fall into?

Based on its current 10-day historical volatility, WRB falls into the low volatility category

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

WRB 10-day volatility reached a 1-year high of 44.56% on December 11, 2025

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

WRB 10-day volatility reached a 1-year low of 6.36% on November 18, 2025

What is the current 1-month volatility of WRB?

As of today, WRB 1-month volatility is 16.97%

What 1-month volatility category does WRB fall into?

Based on its current 1-month historical volatility, WRB falls into the low volatility category

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

WRB 1-month volatility reached a 1-year high of 33.88% on December 26, 2025

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

WRB 1-month volatility reached a 1-year low of 13.41% on November 28, 2025

What is the current 3-month volatility of WRB?

As of today, WRB 3-month volatility is 21.07%

What 3-month volatility category does WRB fall into?

Based on its current 3-month historical volatility, WRB falls into the low volatility category

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

WRB 3-month volatility reached a 1-year high of 26.41% on January 9, 2026

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

WRB 3-month volatility reached a 1-year low of 15.69% on October 13, 2025

What is the current 1-year volatility of WRB?

As of today, WRB 1-year volatility is 22.12%

What 1-year volatility category does WRB fall into?

Based on its current 1-year historical volatility, WRB falls into the low volatility category

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

WRB 1-year volatility reached a 1-year high of 23.69% on January 9, 2026

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

WRB 1-year volatility reached a 1-year low of 20.41% on April 22, 2026

WRB Stock Volatility History & Chart Since 1975

10-Day

15.98%

September 22, 2026

Summary

Current Value: As of today, WRB 10-day volatility is 15.98%, down -2.98% on September 22, 2026
Value Category: Based on its current 10-day historical volatility, WRB falls into the low volatility category
1-Year High: WRB 10-day volatility reached a 1-year high of 44.56% on December 11, 2025
1-Year Low: WRB 10-day volatility reached a 1-year low of 6.36% on November 18, 2025

10-Day Volatility Chart

Performance

WRB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 22, 26	15.98%	-3.0%	+34.0%	-17.2%	+61.7%	-25.1%	-3.4%	-4.3%
1-Month Volatility	Sep 22, 26	16.97%	-0.9%	-9.9%	-31.7%	-32.4%	-2.9%	+32.3%	+8.4%
3-Month Volatility	Sep 22, 26	21.07%	+0.4%	-9.8%	-3.0%	-14.6%	+22.0%	+43.9%	+14.6%
1-Year Volatility	Sep 22, 26	22.12%	+0.1%	-0.2%	+4.0%	-5.1%	-1.9%	-6.5%	-11.4%
14-Day RSI	Sep 22, 26	39.97	-7.2%	+8.6%	-20.9%	-8.1%	-31.1%	-38.0%	-7.7%
Beta	Sep 22, 26	-0.32	0.0%	-6.7%	-146.2%	-239.1%	-200.0%	-172.7%	-134.8%
ATR	Sep 22, 26	$1.34	+0.1%	-6.3%	-3.1%	+11.5%	+14.0%	+138.1%	+159.2%
Price	Sep 22, 26	$68.17	-0.9%	-0.6%	+1.5%	-2.8%	-7.1%	+57.5%	+112.2%
200-Day SMA	Sep 22, 26	$68.91	-0.0%	-1.0%	-1.9%	-4.1%	+2.6%	+62.4%	+112.0%
50-Day SMA	Sep 22, 26	$70.71	-0.2%	-0.4%	+6.0%	-3.0%	-0.1%	+70.2%	+114.8%
20-Day SMA	Sep 22, 26	$69.24	-0.1%	-3.3%	+3.8%	-0.2%	-4.3%	+64.8%	+111.8%

10-Day Volatility History

Date	Value	Change
Sep 22, 2026	15.98%	+61.7%
Dec 31, 2025	9.88%	-30.7%
Dec 31, 2024	14.26%	+13.2%
Dec 31, 2023	12.60%	-29.8%
Dec 31, 2022	17.96%	-14.4%
Dec 31, 2021	20.99%	+80.0%
Dec 31, 2020	11.66%	+53.0%
Dec 31, 2019	7.62%	-74.2%
Dec 31, 2018	29.48%	+150.5%
Dec 31, 2017	11.77%	+103.6%
Dec 31, 2016	5.78%	-76.1%
Dec 31, 2015	24.14%	+51.0%
Dec 31, 2014	15.99%	+92.2%
Dec 31, 2013	8.32%	-43.4%
Dec 31, 2012	14.71%	-0.9%
Dec 31, 2011	14.84%	+122.5%
Dec 31, 2010	6.67%	-70.1%
Dec 31, 2009	22.32%	+28.8%
Dec 31, 2008	17.33%	-22.3%
Dec 31, 2007	22.30%	+87.1%
Dec 31, 2006	11.92%	-62.1%
Dec 31, 2005	31.43%	+521.1%
Dec 31, 2004	5.06%	-75.7%
Dec 31, 2003	20.80%	-14.0%
Dec 31, 2002	24.18%	+32.3%
Dec 31, 2001	18.27%	-51.0%

Date	Value	Change
Dec 31, 2000	37.28%	+46.8%
Dec 31, 1999	25.39%	-3.6%
Dec 31, 1998	26.35%	-41.1%
Dec 31, 1997	44.70%	+250.3%
Dec 31, 1996	12.76%	-64.6%
Dec 31, 1995	36.01%	+12.1%
Dec 31, 1994	32.13%	-25.7%
Dec 31, 1993	43.24%	+259.7%
Dec 31, 1992	12.02%	-76.3%
Dec 31, 1991	50.70%	+116.9%
Dec 31, 1990	23.37%	-45.9%
Dec 31, 1989	43.18%	+456.4%
Dec 31, 1988	7.76%	-80.0%
Dec 31, 1987	38.80%	+42.8%
Dec 31, 1986	27.17%	+7.1%
Dec 31, 1985	25.37%	-22.2%
Dec 31, 1984	32.61%	>+9,900.0%
Dec 31, 1983	0.00%	-100.0%
Dec 31, 1982	16.65%	-17.3%
Dec 31, 1981	20.13%	-31.6%
Dec 31, 1980	29.44%	-16.2%
Dec 31, 1979	35.13%	-27.7%
Dec 31, 1978	48.58%	+80.3%
Dec 31, 1977	26.94%	+27.7%
Dec 31, 1976	21.10%	-85.8%
Dec 31, 1975	148.78%	-

FAQ

What is the current 10-day volatility of WRB?: As of today, WRB 10-day volatility is 15.98%
What 10-day volatility category does WRB fall into?: Based on its current 10-day historical volatility, WRB falls into the low volatility category
What is WRB 10-day volatility 1-year high?: WRB 10-day volatility reached a 1-year high of 44.56% on December 11, 2025
What is WRB 10-day volatility 1-year low?: WRB 10-day volatility reached a 1-year low of 6.36% on November 18, 2025

1-Month

16.97%

September 22, 2026

Summary

Current Value: As of today, WRB 1-month volatility is 16.97%, down -0.93% on September 22, 2026
Value Category: Based on its current 1-month historical volatility, WRB falls into the low volatility category
1-Year High: WRB 1-month volatility reached a 1-year high of 33.88% on December 26, 2025
1-Year Low: WRB 1-month volatility reached a 1-year low of 13.41% on November 28, 2025

Performance

WRB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Sep 22, 26	16.97%	-0.9%	-9.9%	-31.7%	-32.4%	-2.9%	+32.3%	+8.4%
10-Day Volatility	Sep 22, 26	15.98%	-3.0%	+34.0%	-17.2%	+61.7%	-25.1%	-3.4%	-4.3%
3-Month Volatility	Sep 22, 26	21.07%	+0.4%	-9.8%	-3.0%	-14.6%	+22.0%	+43.9%	+14.6%
1-Year Volatility	Sep 22, 26	22.12%	+0.1%	-0.2%	+4.0%	-5.1%	-1.9%	-6.5%	-11.4%
14-Day RSI	Sep 22, 26	39.97	-7.2%	+8.6%	-20.9%	-8.1%	-31.1%	-38.0%	-7.7%
Beta	Sep 22, 26	-0.32	0.0%	-6.7%	-146.2%	-239.1%	-200.0%	-172.7%	-134.8%
ATR	Sep 22, 26	$1.34	+0.1%	-6.3%	-3.1%	+11.5%	+14.0%	+138.1%	+159.2%
Price	Sep 22, 26	$68.17	-0.9%	-0.6%	+1.5%	-2.8%	-7.1%	+57.5%	+112.2%
200-Day SMA	Sep 22, 26	$68.91	-0.0%	-1.0%	-1.9%	-4.1%	+2.6%	+62.4%	+112.0%
50-Day SMA	Sep 22, 26	$70.71	-0.2%	-0.4%	+6.0%	-3.0%	-0.1%	+70.2%	+114.8%
20-Day SMA	Sep 22, 26	$69.24	-0.1%	-3.3%	+3.8%	-0.2%	-4.3%	+64.8%	+111.8%

1-Month Volatility History

Date	Value	Change
Sep 22, 2026	16.97%	-46.2%
Dec 31, 2025	31.57%	+138.4%
Dec 31, 2024	13.24%	-22.7%
Dec 31, 2023	17.12%	-3.3%
Dec 31, 2022	17.71%	-20.4%
Dec 31, 2021	22.24%	+1.3%
Dec 31, 2020	21.96%	+116.8%
Dec 31, 2019	10.13%	-54.7%
Dec 31, 2018	22.34%	+127.7%
Dec 31, 2017	9.81%	+2.3%
Dec 31, 2016	9.59%	-53.0%
Dec 31, 2015	20.42%	+14.8%
Dec 31, 2014	17.79%	+41.0%
Dec 31, 2013	12.62%	+0.6%
Dec 31, 2012	12.54%	-24.9%
Dec 31, 2011	16.69%	+87.1%
Dec 31, 2010	8.92%	-42.7%
Dec 31, 2009	15.56%	-74.6%
Dec 31, 2008	61.18%	+179.9%
Dec 31, 2007	21.86%	+43.5%
Dec 31, 2006	15.23%	-39.3%
Dec 31, 2005	25.07%	+107.9%
Dec 31, 2004	12.06%	-51.3%
Dec 31, 2003	24.74%	+23.4%
Dec 31, 2002	20.05%	+16.4%
Dec 31, 2001	17.22%	-48.9%

Date	Value	Change
Dec 31, 2000	33.70%	+52.6%
Dec 31, 1999	22.09%	-28.5%
Dec 31, 1998	30.88%	-10.7%
Dec 31, 1997	34.57%	+187.1%
Dec 31, 1996	12.04%	-63.4%
Dec 31, 1995	32.94%	+21.1%
Dec 31, 1994	27.20%	-19.6%
Dec 31, 1993	33.83%	+50.5%
Dec 31, 1992	22.48%	-43.5%
Dec 31, 1991	39.76%	+50.1%
Dec 31, 1990	26.49%	-18.7%
Dec 31, 1989	32.60%	+179.3%
Dec 31, 1988	11.67%	-78.3%
Dec 31, 1987	53.77%	+12.7%
Dec 31, 1986	47.73%	+33.1%
Dec 31, 1985	35.85%	+34.8%
Dec 31, 1984	26.60%	+310.5%
Dec 31, 1983	6.48%	-59.1%
Dec 31, 1982	15.86%	-20.5%
Dec 31, 1981	19.95%	-43.9%
Dec 31, 1980	35.53%	+16.2%
Dec 31, 1979	30.58%	-52.9%
Dec 31, 1978	64.89%	+19.6%
Dec 31, 1977	54.27%	+2.6%
Dec 31, 1976	52.90%	-47.5%
Dec 31, 1975	100.75%	-

FAQ

What is the current 1-month volatility of WRB?: As of today, WRB 1-month volatility is 16.97%
What 1-month volatility category does WRB fall into?: Based on its current 1-month historical volatility, WRB falls into the low volatility category
What is WRB 1-month volatility 1-year high?: WRB 1-month volatility reached a 1-year high of 33.88% on December 26, 2025
What is WRB 1-month volatility 1-year low?: WRB 1-month volatility reached a 1-year low of 13.41% on November 28, 2025

3-Month

21.07%

September 22, 2026

Summary

Current Value: As of today, WRB 3-month volatility is 21.07%, up +0.38% on September 22, 2026
Value Category: Based on its current 3-month historical volatility, WRB falls into the low volatility category
1-Year High: WRB 3-month volatility reached a 1-year high of 26.41% on January 9, 2026
1-Year Low: WRB 3-month volatility reached a 1-year low of 15.69% on October 13, 2025

Performance

WRB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 22, 26	21.07%	+0.4%	-9.8%	-3.0%	-14.6%	+22.0%	+43.9%	+14.6%
10-Day Volatility	Sep 22, 26	15.98%	-3.0%	+34.0%	-17.2%	+61.7%	-25.1%	-3.4%	-4.3%
1-Month Volatility	Sep 22, 26	16.97%	-0.9%	-9.9%	-31.7%	-32.4%	-2.9%	+32.3%	+8.4%
1-Year Volatility	Sep 22, 26	22.12%	+0.1%	-0.2%	+4.0%	-5.1%	-1.9%	-6.5%	-11.4%
14-Day RSI	Sep 22, 26	39.97	-7.2%	+8.6%	-20.9%	-8.1%	-31.1%	-38.0%	-7.7%
Beta	Sep 22, 26	-0.32	0.0%	-6.7%	-146.2%	-239.1%	-200.0%	-172.7%	-134.8%
ATR	Sep 22, 26	$1.34	+0.1%	-6.3%	-3.1%	+11.5%	+14.0%	+138.1%	+159.2%
Price	Sep 22, 26	$68.17	-0.9%	-0.6%	+1.5%	-2.8%	-7.1%	+57.5%	+112.2%
200-Day SMA	Sep 22, 26	$68.91	-0.0%	-1.0%	-1.9%	-4.1%	+2.6%	+62.4%	+112.0%
50-Day SMA	Sep 22, 26	$70.71	-0.2%	-0.4%	+6.0%	-3.0%	-0.1%	+70.2%	+114.8%
20-Day SMA	Sep 22, 26	$69.24	-0.1%	-3.3%	+3.8%	-0.2%	-4.3%	+64.8%	+111.8%

3-Month Volatility History

Date	Value	Change
Sep 22, 2026	21.07%	-14.6%
Dec 31, 2025	24.66%	+11.2%
Dec 31, 2024	22.17%	+1.6%
Dec 31, 2023	21.83%	-18.5%
Dec 31, 2022	26.78%	+9.1%
Dec 31, 2021	24.55%	-29.9%
Dec 31, 2020	35.00%	+65.9%
Dec 31, 2019	21.10%	+6.2%
Dec 31, 2018	19.87%	+85.9%
Dec 31, 2017	10.69%	-22.3%
Dec 31, 2016	13.76%	-18.4%
Dec 31, 2015	16.87%	+10.5%
Dec 31, 2014	15.27%	+32.1%
Dec 31, 2013	11.56%	-21.7%
Dec 31, 2012	14.76%	-51.0%
Dec 31, 2011	30.13%	+111.4%
Dec 31, 2010	14.25%	-16.6%
Dec 31, 2009	17.08%	-79.7%
Dec 31, 2008	83.94%	+209.9%
Dec 31, 2007	27.09%	+23.9%
Dec 31, 2006	21.87%	-14.0%
Dec 31, 2005	25.44%	+46.1%
Dec 31, 2004	17.41%	-23.1%
Dec 31, 2003	22.63%	-20.3%
Dec 31, 2002	28.41%	-11.6%
Dec 31, 2001	32.15%	-24.2%

Date	Value	Change
Dec 31, 2000	42.40%	+78.3%
Dec 31, 1999	23.78%	-33.2%
Dec 31, 1998	35.61%	+14.4%
Dec 31, 1997	31.12%	+74.9%
Dec 31, 1996	17.79%	-27.8%
Dec 31, 1995	24.64%	+7.6%
Dec 31, 1994	22.89%	-30.3%
Dec 31, 1993	32.83%	+34.5%
Dec 31, 1992	24.40%	-31.2%
Dec 31, 1991	35.49%	+40.1%
Dec 31, 1990	25.33%	-0.4%
Dec 31, 1989	25.43%	+133.3%
Dec 31, 1988	10.90%	-81.4%
Dec 31, 1987	58.48%	+41.3%
Dec 31, 1986	41.40%	+0.1%
Dec 31, 1985	41.34%	+48.8%
Dec 31, 1984	27.78%	+61.9%
Dec 31, 1983	17.16%	-28.9%
Dec 31, 1982	24.15%	+38.4%
Dec 31, 1981	17.45%	-32.8%
Dec 31, 1980	25.97%	-22.8%
Dec 31, 1979	33.63%	-27.4%
Dec 31, 1978	46.33%	+3.6%
Dec 31, 1977	44.74%	+24.3%
Dec 31, 1976	35.99%	-39.2%
Dec 31, 1975	59.17%	-

FAQ

What is the current 3-month volatility of WRB?: As of today, WRB 3-month volatility is 21.07%
What 3-month volatility category does WRB fall into?: Based on its current 3-month historical volatility, WRB falls into the low volatility category
What is WRB 3-month volatility 1-year high?: WRB 3-month volatility reached a 1-year high of 26.41% on January 9, 2026
What is WRB 3-month volatility 1-year low?: WRB 3-month volatility reached a 1-year low of 15.69% on October 13, 2025

1-Year

22.12%

September 22, 2026

Summary

Current Value: As of today, WRB 1-year volatility is 22.12%, up +0.09% on September 22, 2026
Value Category: Based on its current 1-year historical volatility, WRB falls into the low volatility category
1-Year High: WRB 1-year volatility reached a 1-year high of 23.69% on January 9, 2026
1-Year Low: WRB 1-year volatility reached a 1-year low of 20.41% on April 22, 2026

Performance

WRB Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 22, 26	22.12%	+0.1%	-0.2%	+4.0%	-5.1%	-1.9%	-6.5%	-11.4%
10-Day Volatility	Sep 22, 26	15.98%	-3.0%	+34.0%	-17.2%	+61.7%	-25.1%	-3.4%	-4.3%
1-Month Volatility	Sep 22, 26	16.97%	-0.9%	-9.9%	-31.7%	-32.4%	-2.9%	+32.3%	+8.4%
3-Month Volatility	Sep 22, 26	21.07%	+0.4%	-9.8%	-3.0%	-14.6%	+22.0%	+43.9%	+14.6%
1-Year Volatility	Sep 22, 26	22.12%	+0.1%	-0.2%	+4.0%	-5.1%	-1.9%	-6.5%	-11.4%
14-Day RSI	Sep 22, 26	39.97	-7.2%	+8.6%	-20.9%	-8.1%	-31.1%	-38.0%	-7.7%
Beta	Sep 22, 26	-0.32	0.0%	-6.7%	-146.2%	-239.1%	-200.0%	-172.7%	-134.8%
ATR	Sep 22, 26	$1.34	+0.1%	-6.3%	-3.1%	+11.5%	+14.0%	+138.1%	+159.2%
Price	Sep 22, 26	$68.17	-0.9%	-0.6%	+1.5%	-2.8%	-7.1%	+57.5%	+112.2%
200-Day SMA	Sep 22, 26	$68.91	-0.0%	-1.0%	-1.9%	-4.1%	+2.6%	+62.4%	+112.0%
50-Day SMA	Sep 22, 26	$70.71	-0.2%	-0.4%	+6.0%	-3.0%	-0.1%	+70.2%	+114.8%
20-Day SMA	Sep 22, 26	$69.24	-0.1%	-3.3%	+3.8%	-0.2%	-4.3%	+64.8%	+111.8%

1-Year Volatility History

Date	Value	Change
Sep 22, 2026	22.12%	-5.1%
Dec 31, 2025	23.30%	+5.8%
Dec 31, 2024	22.03%	+0.2%
Dec 31, 2023	21.98%	-11.5%
Dec 31, 2022	24.83%	+16.3%
Dec 31, 2021	21.35%	-56.1%
Dec 31, 2020	48.67%	+191.6%
Dec 31, 2019	16.69%	+1.3%
Dec 31, 2018	16.48%	+23.4%
Dec 31, 2017	13.36%	-19.0%
Dec 31, 2016	16.49%	-9.0%
Dec 31, 2015	18.13%	+40.7%
Dec 31, 2014	12.89%	-2.5%
Dec 31, 2013	13.22%	-14.5%
Dec 31, 2012	15.46%	-37.3%
Dec 31, 2011	24.65%	+46.9%
Dec 31, 2010	16.78%	-54.4%
Dec 31, 2009	36.78%	-30.0%
Dec 31, 2008	52.51%	+105.3%
Dec 31, 2007	25.58%	+2.1%
Dec 31, 2006	25.06%	+18.4%
Dec 31, 2005	21.16%	+11.3%
Dec 31, 2004	19.01%	-13.9%
Dec 31, 2003	22.07%	-14.1%
Dec 31, 2002	25.68%	-29.3%
Dec 31, 2001	36.33%	-14.5%

Date	Value	Change
Dec 31, 2000	42.50%	+39.5%
Dec 31, 1999	30.47%	-12.6%
Dec 31, 1998	34.88%	+35.0%
Dec 31, 1997	25.83%	+18.5%
Dec 31, 1996	21.80%	-5.1%
Dec 31, 1995	22.97%	+0.4%
Dec 31, 1994	22.88%	-8.9%
Dec 31, 1993	25.11%	+15.0%
Dec 31, 1992	21.84%	-33.9%
Dec 31, 1991	33.02%	+28.2%
Dec 31, 1990	25.75%	+22.7%
Dec 31, 1989	20.99%	-0.2%
Dec 31, 1988	21.03%	-51.3%
Dec 31, 1987	43.18%	+8.4%
Dec 31, 1986	39.85%	+12.5%
Dec 31, 1985	35.41%	+36.2%
Dec 31, 1984	25.99%	+2.5%
Dec 31, 1983	25.35%	-12.0%
Dec 31, 1982	28.81%	+39.4%
Dec 31, 1981	20.67%	-35.6%
Dec 31, 1980	32.11%	-24.8%
Dec 31, 1979	42.68%	+8.7%
Dec 31, 1978	39.25%	-22.7%
Dec 31, 1977	50.78%	+54.4%
Dec 31, 1976	32.88%	-26.4%
Dec 31, 1975	44.69%	-

FAQ

What is the current 1-year volatility of WRB?: As of today, WRB 1-year volatility is 22.12%
What 1-year volatility category does WRB fall into?: Based on its current 1-year historical volatility, WRB falls into the low volatility category
What is WRB 1-year volatility 1-year high?: WRB 1-year volatility reached a 1-year high of 23.69% on January 9, 2026
What is WRB 1-year volatility 1-year low?: WRB 1-year volatility reached a 1-year low of 20.41% on April 22, 2026

Data Sources & References

WRB Official Website www.berkley.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/11544/000001154426000003/0000011544-26-000003-index.htm
WRB Profile on Yahoo Finance finance.yahoo.com/quote/WRB
WRB Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/wrb