What is the current 10-day volatility of WDC?

As of today, WDC 10-day volatility is 40.50%

What 10-day volatility category does WDC fall into?

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

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

WDC 10-day volatility reached a 1-year high of 139.99% on June 29, 2026

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

WDC 10-day volatility reached a 1-year low of 27.27% on April 22, 2026

What is the current 1-month volatility of WDC?

As of today, WDC 1-month volatility is 45.93%

What 1-month volatility category does WDC fall into?

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

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

WDC 1-month volatility reached a 1-year high of 126.51% on July 2, 2026

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

WDC 1-month volatility reached a 1-year low of 41.38% on May 8, 2026

What is the current 3-month volatility of WDC?

As of today, WDC 3-month volatility is 82.09%

What 3-month volatility category does WDC fall into?

Based on its current 3-month historical volatility, WDC falls into the extreme volatility category

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

WDC 3-month volatility reached a 1-year high of 103.50% on August 21, 2026

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

WDC 3-month volatility reached a 1-year low of 39.63% on September 30, 2025

What is the current 1-year volatility of WDC?

As of today, WDC 1-year volatility is 80.06%

What 1-year volatility category does WDC fall into?

Based on its current 1-year historical volatility, WDC falls into the extreme volatility category

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

WDC 1-year volatility reached a 1-year high of 80.69% on September 25, 2026

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

WDC 1-year volatility reached a 1-year low of 47.17% on September 30, 2025

WDC Stock Volatility History & Chart Since 1978

10-Day

40.50%

September 30, 2026

Summary

Current Value: As of today, WDC 10-day volatility is 40.50%, up +0.37% on September 30, 2026
Value Category: Based on its current 10-day historical volatility, WDC falls into the high volatility category
1-Year High: WDC 10-day volatility reached a 1-year high of 139.99% on June 29, 2026
1-Year Low: WDC 10-day volatility reached a 1-year low of 27.27% on April 22, 2026

10-Day Volatility Chart

Performance

WDC Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 30, 26	40.50%	+0.4%	-44.1%	-65.0%	-14.6%	-32.9%	+32.4%	+42.1%
1-Month Volatility	Sep 30, 26	45.93%	-2.4%	-43.3%	-59.8%	-14.8%	+0.8%	+28.6%	+60.9%
3-Month Volatility	Sep 30, 26	82.09%	-0.1%	-19.9%	+2.9%	+25.8%	+107.1%	+154.9%	+117.0%
1-Year Volatility	Sep 30, 26	80.06%	-0.0%	-0.3%	+13.1%	+46.2%	+69.7%	+88.9%	+78.7%
14-Day RSI	Sep 30, 26	49.07	+0.6%	+8.6%	-11.0%	-5.9%	-40.1%	-19.4%	+23.1%
Beta	Sep 30, 26	2.96	-0.3%	-5.4%	+2.1%	+71.1%	+85.0%	+108.5%	+100.0%
ATR	Sep 30, 26	$26.33	-2.5%	-31.3%	-52.0%	+186.5%	+561.3%	+2689.7%	+1727.8%
Price	Sep 30, 26	$454.46	+0.2%	-1.1%	-28.9%	+163.8%	+278.5%	+1217.7%	+965.3%
200-Day SMA	Sep 30, 26	$397.38	+0.3%	+8.7%	+39.0%	+333.9%	+579.7%	+1259.5%	+713.7%
50-Day SMA	Sep 30, 26	$470.90	-0.4%	-11.3%	-9.8%	+194.9%	+447.0%	+1362.7%	+914.4%
20-Day SMA	Sep 30, 26	$450.07	+0.0%	-5.3%	-26.6%	+158.4%	+339.8%	+1241.9%	+923.7%

10-Day Volatility History

Date	Value	Change
Sep 30, 2026	40.50%	-14.6%
Dec 31, 2025	47.40%	+32.0%
Dec 31, 2024	35.90%	-2.9%
Dec 31, 2023	36.99%	+0.7%
Dec 31, 2022	36.74%	-4.7%
Dec 31, 2021	38.57%	-46.2%
Dec 31, 2020	71.71%	+180.2%
Dec 31, 2019	25.59%	-42.7%
Dec 31, 2018	44.65%	+91.5%
Dec 31, 2017	23.32%	+34.0%
Dec 31, 2016	17.40%	-23.6%
Dec 31, 2015	22.77%	-20.6%
Dec 31, 2014	28.67%	+89.0%
Dec 31, 2013	15.17%	-50.7%
Dec 31, 2012	30.80%	-2.0%
Dec 31, 2011	31.43%	+259.2%
Dec 31, 2010	8.75%	-55.7%
Dec 31, 2009	19.74%	-62.6%
Dec 31, 2008	52.73%	+79.2%
Dec 31, 2007	29.43%	+45.1%
Dec 31, 2006	20.28%	-78.6%
Dec 31, 2005	94.82%	+363.0%
Dec 31, 2004	20.48%	-22.8%
Dec 31, 2003	26.53%	-52.1%
Dec 31, 2002	55.42%	-39.5%

Date	Value	Change
Dec 31, 2001	91.57%	-23.0%
Dec 31, 2000	118.91%	+58.0%
Dec 31, 1999	75.27%	+18.1%
Dec 31, 1998	63.72%	+10.4%
Dec 31, 1997	57.73%	+23.5%
Dec 31, 1996	46.76%	-16.6%
Dec 31, 1995	56.08%	+42.0%
Dec 31, 1994	39.50%	+9.3%
Dec 31, 1993	36.15%	-20.7%
Dec 31, 1992	45.58%	-55.4%
Dec 31, 1991	102.13%	+129.7%
Dec 31, 1990	44.46%	+3.7%
Dec 31, 1989	42.89%	+3.6%
Dec 31, 1988	41.38%	-13.3%
Dec 31, 1987	47.71%	+95.3%
Dec 31, 1986	24.43%	-45.3%
Dec 31, 1985	44.64%	-21.1%
Dec 31, 1984	56.57%	+26.9%
Dec 31, 1983	44.57%	-53.7%
Dec 31, 1982	96.34%	+137.7%
Dec 31, 1981	40.53%	-40.1%
Dec 31, 1980	67.66%	+13.7%
Dec 31, 1979	59.49%	-64.2%
Dec 31, 1978	166.01%	-

FAQ

What is the current 10-day volatility of WDC?: As of today, WDC 10-day volatility is 40.50%
What 10-day volatility category does WDC fall into?: Based on its current 10-day historical volatility, WDC falls into the high volatility category
What is WDC 10-day volatility 1-year high?: WDC 10-day volatility reached a 1-year high of 139.99% on June 29, 2026
What is WDC 10-day volatility 1-year low?: WDC 10-day volatility reached a 1-year low of 27.27% on April 22, 2026

1-Month

45.93%

September 30, 2026

Summary

Current Value: As of today, WDC 1-month volatility is 45.93%, down -2.40% on September 30, 2026
Value Category: Based on its current 1-month historical volatility, WDC falls into the high volatility category
1-Year High: WDC 1-month volatility reached a 1-year high of 126.51% on July 2, 2026
1-Year Low: WDC 1-month volatility reached a 1-year low of 41.38% on May 8, 2026

Performance

WDC Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Sep 30, 26	45.93%	-2.4%	-43.3%	-59.8%	-14.8%	+0.8%	+28.6%	+60.9%
10-Day Volatility	Sep 30, 26	40.50%	+0.4%	-44.1%	-65.0%	-14.6%	-32.9%	+32.4%	+42.1%
3-Month Volatility	Sep 30, 26	82.09%	-0.1%	-19.9%	+2.9%	+25.8%	+107.1%	+154.9%	+117.0%
1-Year Volatility	Sep 30, 26	80.06%	-0.0%	-0.3%	+13.1%	+46.2%	+69.7%	+88.9%	+78.7%
14-Day RSI	Sep 30, 26	49.07	+0.6%	+8.6%	-11.0%	-5.9%	-40.1%	-19.4%	+23.1%
Beta	Sep 30, 26	2.96	-0.3%	-5.4%	+2.1%	+71.1%	+85.0%	+108.5%	+100.0%
ATR	Sep 30, 26	$26.33	-2.5%	-31.3%	-52.0%	+186.5%	+561.3%	+2689.7%	+1727.8%
Price	Sep 30, 26	$454.46	+0.2%	-1.1%	-28.9%	+163.8%	+278.5%	+1217.7%	+965.3%
200-Day SMA	Sep 30, 26	$397.38	+0.3%	+8.7%	+39.0%	+333.9%	+579.7%	+1259.5%	+713.7%
50-Day SMA	Sep 30, 26	$470.90	-0.4%	-11.3%	-9.8%	+194.9%	+447.0%	+1362.7%	+914.4%
20-Day SMA	Sep 30, 26	$450.07	+0.0%	-5.3%	-26.6%	+158.4%	+339.8%	+1241.9%	+923.7%

1-Month Volatility History

Date	Value	Change
Sep 30, 2026	45.93%	-12.7%
Dec 31, 2025	52.63%	+58.6%
Dec 31, 2024	33.19%	+10.6%
Dec 31, 2023	30.00%	-36.0%
Dec 31, 2022	46.90%	+30.0%
Dec 31, 2021	36.07%	-37.8%
Dec 31, 2020	58.03%	+57.2%
Dec 31, 2019	36.91%	-17.1%
Dec 31, 2018	44.51%	+62.0%
Dec 31, 2017	27.48%	-30.1%
Dec 31, 2016	39.29%	+32.9%
Dec 31, 2015	29.57%	+23.7%
Dec 31, 2014	23.91%	+12.7%
Dec 31, 2013	21.22%	-37.9%
Dec 31, 2012	34.18%	-10.3%
Dec 31, 2011	38.09%	+75.4%
Dec 31, 2010	21.72%	-16.5%
Dec 31, 2009	26.02%	-72.3%
Dec 31, 2008	93.82%	+122.2%
Dec 31, 2007	42.23%	+93.3%
Dec 31, 2006	21.85%	-67.4%
Dec 31, 2005	66.96%	+110.8%
Dec 31, 2004	31.77%	-45.3%
Dec 31, 2003	58.07%	-29.1%
Dec 31, 2002	81.92%	-4.9%

Date	Value	Change
Dec 31, 2001	86.10%	-54.3%
Dec 31, 2000	188.55%	+141.4%
Dec 31, 1999	78.10%	-44.5%
Dec 31, 1998	140.77%	+136.1%
Dec 31, 1997	59.63%	+6.1%
Dec 31, 1996	56.18%	-2.1%
Dec 31, 1995	57.41%	+63.7%
Dec 31, 1994	35.06%	-17.6%
Dec 31, 1993	42.57%	+3.6%
Dec 31, 1992	41.08%	-53.1%
Dec 31, 1991	87.58%	+46.0%
Dec 31, 1990	59.98%	+63.2%
Dec 31, 1989	36.75%	-12.6%
Dec 31, 1988	42.03%	-30.7%
Dec 31, 1987	60.66%	+151.4%
Dec 31, 1986	24.13%	-49.8%
Dec 31, 1985	48.04%	-5.9%
Dec 31, 1984	51.03%	+43.2%
Dec 31, 1983	35.64%	-54.1%
Dec 31, 1982	77.63%	+73.0%
Dec 31, 1981	44.88%	-18.1%
Dec 31, 1980	54.80%	-21.1%
Dec 31, 1979	69.48%	-42.8%
Dec 31, 1978	121.52%	-

FAQ

What is the current 1-month volatility of WDC?: As of today, WDC 1-month volatility is 45.93%
What 1-month volatility category does WDC fall into?: Based on its current 1-month historical volatility, WDC falls into the high volatility category
What is WDC 1-month volatility 1-year high?: WDC 1-month volatility reached a 1-year high of 126.51% on July 2, 2026
What is WDC 1-month volatility 1-year low?: WDC 1-month volatility reached a 1-year low of 41.38% on May 8, 2026

3-Month

82.09%

September 30, 2026

Summary

Current Value: As of today, WDC 3-month volatility is 82.09%, down -0.06% on September 30, 2026
Value Category: Based on its current 3-month historical volatility, WDC falls into the extreme volatility category
1-Year High: WDC 3-month volatility reached a 1-year high of 103.50% on August 21, 2026
1-Year Low: WDC 3-month volatility reached a 1-year low of 39.63% on September 30, 2025

Performance

WDC Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 30, 26	82.09%	-0.1%	-19.9%	+2.9%	+25.8%	+107.1%	+154.9%	+117.0%
10-Day Volatility	Sep 30, 26	40.50%	+0.4%	-44.1%	-65.0%	-14.6%	-32.9%	+32.4%	+42.1%
1-Month Volatility	Sep 30, 26	45.93%	-2.4%	-43.3%	-59.8%	-14.8%	+0.8%	+28.6%	+60.9%
1-Year Volatility	Sep 30, 26	80.06%	-0.0%	-0.3%	+13.1%	+46.2%	+69.7%	+88.9%	+78.7%
14-Day RSI	Sep 30, 26	49.07	+0.6%	+8.6%	-11.0%	-5.9%	-40.1%	-19.4%	+23.1%
Beta	Sep 30, 26	2.96	-0.3%	-5.4%	+2.1%	+71.1%	+85.0%	+108.5%	+100.0%
ATR	Sep 30, 26	$26.33	-2.5%	-31.3%	-52.0%	+186.5%	+561.3%	+2689.7%	+1727.8%
Price	Sep 30, 26	$454.46	+0.2%	-1.1%	-28.9%	+163.8%	+278.5%	+1217.7%	+965.3%
200-Day SMA	Sep 30, 26	$397.38	+0.3%	+8.7%	+39.0%	+333.9%	+579.7%	+1259.5%	+713.7%
50-Day SMA	Sep 30, 26	$470.90	-0.4%	-11.3%	-9.8%	+194.9%	+447.0%	+1362.7%	+914.4%
20-Day SMA	Sep 30, 26	$450.07	+0.0%	-5.3%	-26.6%	+158.4%	+339.8%	+1241.9%	+923.7%

3-Month Volatility History

Date	Value	Change
Sep 30, 2026	82.09%	+22.9%
Dec 31, 2025	66.80%	+86.1%
Dec 31, 2024	35.89%	-2.9%
Dec 31, 2023	36.98%	-29.2%
Dec 31, 2022	52.23%	+28.9%
Dec 31, 2021	40.51%	-15.0%
Dec 31, 2020	47.68%	-3.3%
Dec 31, 2019	49.33%	-14.0%
Dec 31, 2018	57.36%	+79.6%
Dec 31, 2017	31.93%	-9.3%
Dec 31, 2016	35.19%	+8.4%
Dec 31, 2015	32.47%	+23.3%
Dec 31, 2014	26.33%	+1.1%
Dec 31, 2013	26.04%	-21.5%
Dec 31, 2012	33.19%	-42.0%
Dec 31, 2011	57.23%	+83.1%
Dec 31, 2010	31.25%	-5.6%
Dec 31, 2009	33.09%	-66.9%
Dec 31, 2008	99.95%	+119.6%
Dec 31, 2007	45.51%	+40.8%
Dec 31, 2006	32.33%	-39.4%
Dec 31, 2005	53.38%	+47.9%
Dec 31, 2004	36.10%	-40.5%
Dec 31, 2003	60.68%	-15.9%
Dec 31, 2002	72.15%	-23.3%

Date	Value	Change
Dec 31, 2001	94.12%	-26.6%
Dec 31, 2000	128.27%	+25.7%
Dec 31, 1999	102.04%	-9.6%
Dec 31, 1998	112.91%	+48.9%
Dec 31, 1997	75.85%	+66.7%
Dec 31, 1996	45.50%	-0.3%
Dec 31, 1995	45.65%	+18.8%
Dec 31, 1994	38.44%	-42.6%
Dec 31, 1993	66.96%	+30.6%
Dec 31, 1992	51.29%	-35.1%
Dec 31, 1991	79.06%	+11.9%
Dec 31, 1990	70.68%	+40.2%
Dec 31, 1989	50.43%	+32.5%
Dec 31, 1988	38.06%	-60.5%
Dec 31, 1987	96.28%	+113.0%
Dec 31, 1986	45.21%	-16.7%
Dec 31, 1985	54.29%	+1.4%
Dec 31, 1984	53.56%	-10.9%
Dec 31, 1983	60.14%	-24.4%
Dec 31, 1982	79.54%	+79.8%
Dec 31, 1981	44.25%	-20.9%
Dec 31, 1980	55.92%	-19.7%
Dec 31, 1979	69.64%	-43.1%
Dec 31, 1978	122.42%	-

FAQ

What is the current 3-month volatility of WDC?: As of today, WDC 3-month volatility is 82.09%
What 3-month volatility category does WDC fall into?: Based on its current 3-month historical volatility, WDC falls into the extreme volatility category
What is WDC 3-month volatility 1-year high?: WDC 3-month volatility reached a 1-year high of 103.50% on August 21, 2026
What is WDC 3-month volatility 1-year low?: WDC 3-month volatility reached a 1-year low of 39.63% on September 30, 2025

1-Year

80.06%

September 30, 2026

Summary

Current Value: As of today, WDC 1-year volatility is 80.06%, down -0.02% on September 30, 2026
Value Category: Based on its current 1-year historical volatility, WDC falls into the extreme volatility category
1-Year High: WDC 1-year volatility reached a 1-year high of 80.69% on September 25, 2026
1-Year Low: WDC 1-year volatility reached a 1-year low of 47.17% on September 30, 2025

Performance

WDC Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 30, 26	80.06%	-0.0%	-0.3%	+13.1%	+46.2%	+69.7%	+88.9%	+78.7%
10-Day Volatility	Sep 30, 26	40.50%	+0.4%	-44.1%	-65.0%	-14.6%	-32.9%	+32.4%	+42.1%
1-Month Volatility	Sep 30, 26	45.93%	-2.4%	-43.3%	-59.8%	-14.8%	+0.8%	+28.6%	+60.9%
3-Month Volatility	Sep 30, 26	82.09%	-0.1%	-19.9%	+2.9%	+25.8%	+107.1%	+154.9%	+117.0%
1-Year Volatility	Sep 30, 26	80.06%	-0.0%	-0.3%	+13.1%	+46.2%	+69.7%	+88.9%	+78.7%
14-Day RSI	Sep 30, 26	49.07	+0.6%	+8.6%	-11.0%	-5.9%	-40.1%	-19.4%	+23.1%
Beta	Sep 30, 26	2.96	-0.3%	-5.4%	+2.1%	+71.1%	+85.0%	+108.5%	+100.0%
ATR	Sep 30, 26	$26.33	-2.5%	-31.3%	-52.0%	+186.5%	+561.3%	+2689.7%	+1727.8%
Price	Sep 30, 26	$454.46	+0.2%	-1.1%	-28.9%	+163.8%	+278.5%	+1217.7%	+965.3%
200-Day SMA	Sep 30, 26	$397.38	+0.3%	+8.7%	+39.0%	+333.9%	+579.7%	+1259.5%	+713.7%
50-Day SMA	Sep 30, 26	$470.90	-0.4%	-11.3%	-9.8%	+194.9%	+447.0%	+1362.7%	+914.4%
20-Day SMA	Sep 30, 26	$450.07	+0.0%	-5.3%	-26.6%	+158.4%	+339.8%	+1241.9%	+923.7%

1-Year Volatility History

Date	Value	Change
Sep 30, 2026	80.06%	+46.2%
Dec 31, 2025	54.77%	+41.7%
Dec 31, 2024	38.64%	+1.3%
Dec 31, 2023	38.14%	-19.9%
Dec 31, 2022	47.60%	+11.2%
Dec 31, 2021	42.79%	-37.8%
Dec 31, 2020	68.75%	+42.7%
Dec 31, 2019	48.19%	+21.2%
Dec 31, 2018	39.75%	+31.6%
Dec 31, 2017	30.20%	-38.5%
Dec 31, 2016	49.07%	+43.0%
Dec 31, 2015	34.32%	+47.1%
Dec 31, 2014	23.33%	-18.8%
Dec 31, 2013	28.73%	-32.5%
Dec 31, 2012	42.55%	-10.6%
Dec 31, 2011	47.58%	+14.1%
Dec 31, 2010	41.69%	-22.3%
Dec 31, 2009	53.65%	-23.8%
Dec 31, 2008	70.39%	+92.0%
Dec 31, 2007	36.67%	-11.8%
Dec 31, 2006	41.57%	-4.0%
Dec 31, 2005	43.29%	-4.7%
Dec 31, 2004	45.43%	-29.7%
Dec 31, 2003	64.65%	-27.2%
Dec 31, 2002	88.84%	-5.6%

Date	Value	Change
Dec 31, 2001	94.16%	-28.8%
Dec 31, 2000	132.32%	+47.8%
Dec 31, 1999	89.54%	+6.6%
Dec 31, 1998	84.01%	+20.2%
Dec 31, 1997	69.92%	+49.4%
Dec 31, 1996	46.81%	-9.4%
Dec 31, 1995	51.67%	-11.1%
Dec 31, 1994	58.10%	-11.3%
Dec 31, 1993	65.47%	+11.2%
Dec 31, 1992	58.90%	-25.8%
Dec 31, 1991	79.36%	+44.8%
Dec 31, 1990	54.81%	+17.1%
Dec 31, 1989	46.80%	+5.6%
Dec 31, 1988	44.33%	-32.1%
Dec 31, 1987	65.30%	+36.8%
Dec 31, 1986	47.72%	-8.9%
Dec 31, 1985	52.38%	-2.5%
Dec 31, 1984	53.74%	-9.9%
Dec 31, 1983	59.67%	-15.9%
Dec 31, 1982	70.95%	+35.7%
Dec 31, 1981	52.30%	-26.1%
Dec 31, 1980	70.74%	-3.7%
Dec 31, 1979	73.47%	-40.0%
Dec 31, 1978	122.42%	-

FAQ

What is the current 1-year volatility of WDC?: As of today, WDC 1-year volatility is 80.06%
What 1-year volatility category does WDC fall into?: Based on its current 1-year historical volatility, WDC falls into the extreme volatility category
What is WDC 1-year volatility 1-year high?: WDC 1-year volatility reached a 1-year high of 80.69% on September 25, 2026
What is WDC 1-year volatility 1-year low?: WDC 1-year volatility reached a 1-year low of 47.17% on September 30, 2025

Data Sources & References

WDC Official Website www.westerndigital.com
WDC Profile on Yahoo Finance finance.yahoo.com/quote/WDC
WDC Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/wdc