What is the current 10-day volatility of HALO?

As of today, HALO 10-day volatility is 23.60%

What 10-day volatility category does HALO fall into?

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

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

HALO 10-day volatility reached a 1-year high of 104.89% on August 20, 2026

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

HALO 10-day volatility reached a 1-year low of 14.44% on March 4, 2026

What is the current 1-month volatility of HALO?

As of today, HALO 1-month volatility is 22.53%

What 1-month volatility category does HALO fall into?

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

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

HALO 1-month volatility reached a 1-year high of 74.12% on August 28, 2026

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

HALO 1-month volatility reached a 1-year low of 18.70% on November 10, 2025

What is the current 3-month volatility of HALO?

As of today, HALO 3-month volatility is 47.56%

What 3-month volatility category does HALO fall into?

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

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

HALO 3-month volatility reached a 1-year high of 51.06% on August 7, 2026

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

HALO 3-month volatility reached a 1-year low of 21.81% on September 25, 2025

What is the current 1-year volatility of HALO?

As of today, HALO 1-year volatility is 37.13%

What 1-year volatility category does HALO fall into?

Based on its current 1-year historical volatility, HALO falls into the moderate volatility category

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

HALO 1-year volatility reached a 1-year high of 49.25% on October 3, 2025

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

HALO 1-year volatility reached a 1-year low of 29.71% on May 26, 2026

HALO Stock Volatility History & Chart Since 2004

10-Day

23.60%

September 25, 2026

Summary

Current Value: As of today, HALO 10-day volatility is 23.60%, up +6.26% on September 25, 2026
Value Category: Based on its current 10-day historical volatility, HALO falls into the low volatility category
1-Year High: HALO 10-day volatility reached a 1-year high of 104.89% on August 20, 2026
1-Year Low: HALO 10-day volatility reached a 1-year low of 14.44% on March 4, 2026

10-Day Volatility Chart

Performance

HALO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 25, 26	23.60%	+6.3%	-27.0%	-13.9%	-1.7%	+14.3%	-43.1%	-13.7%
1-Month Volatility	Sep 25, 26	22.53%	+2.3%	-68.4%	-29.4%	-15.2%	+6.0%	-42.0%	-21.1%
3-Month Volatility	Sep 25, 26	47.56%	+0.2%	-2.9%	+46.2%	+63.8%	+118.1%	+40.3%	+82.5%
1-Year Volatility	Sep 25, 26	37.13%	-0.2%	+0.3%	+22.4%	-11.0%	-24.3%	-8.1%	-10.8%
14-Day RSI	Sep 25, 26	67.76	-6.3%	-14.6%	+10.1%	+31.6%	+31.4%	+64.3%	+60.9%
Beta	Sep 25, 26	0.52	-1.9%	-3.7%	-11.9%	-1.9%	-18.8%	-14.8%	-61.2%
ATR	Sep 25, 26	$3.09	-2.2%	+1.0%	+38.8%	+70.6%	+69.2%	+139.9%	+155.1%
Price	Sep 25, 26	$113.90	-1.1%	+4.2%	+56.8%	+69.2%	+54.0%	+192.9%	+182.7%
200-Day SMA	Sep 25, 26	$76.87	+0.3%	+5.8%	+11.3%	+20.8%	+29.6%	+82.5%	+75.4%
50-Day SMA	Sep 25, 26	$98.99	+0.8%	+17.0%	+45.3%	+47.2%	+44.9%	+136.7%	+139.8%
20-Day SMA	Sep 25, 26	$109.24	+0.3%	+12.6%	+56.6%	+67.2%	+44.4%	+170.6%	+161.8%

10-Day Volatility History

Date	Value	Change
Sep 25, 2026	23.60%	-1.7%
Dec 31, 2025	24.01%	+6.1%
Dec 31, 2024	22.64%	-46.1%
Dec 31, 2023	42.01%	+120.4%
Dec 31, 2022	19.06%	-55.0%
Dec 31, 2021	42.33%	+72.8%
Dec 31, 2020	24.50%	+57.7%
Dec 31, 2019	15.54%	-70.3%
Dec 31, 2018	52.35%	+80.0%
Dec 31, 2017	29.08%	-40.9%
Dec 31, 2016	49.20%	+73.2%
Dec 31, 2015	28.41%	-62.1%

Date	Value	Change
Dec 31, 2014	74.93%	-16.8%
Dec 31, 2013	90.08%	-36.4%
Dec 31, 2012	141.56%	+509.6%
Dec 31, 2011	23.22%	+180.4%
Dec 31, 2010	8.28%	-85.1%
Dec 31, 2009	55.61%	+15.7%
Dec 31, 2008	48.08%	-31.1%
Dec 31, 2007	69.80%	+3.7%
Dec 31, 2006	67.32%	+163.0%
Dec 31, 2005	25.60%	-73.1%
Dec 31, 2004	95.16%	-

FAQ

What is the current 10-day volatility of HALO?: As of today, HALO 10-day volatility is 23.60%
What 10-day volatility category does HALO fall into?: Based on its current 10-day historical volatility, HALO falls into the low volatility category
What is HALO 10-day volatility 1-year high?: HALO 10-day volatility reached a 1-year high of 104.89% on August 20, 2026
What is HALO 10-day volatility 1-year low?: HALO 10-day volatility reached a 1-year low of 14.44% on March 4, 2026

1-Month

22.53%

September 25, 2026

Summary

Current Value: As of today, HALO 1-month volatility is 22.53%, up +2.32% on September 25, 2026
Value Category: Based on its current 1-month historical volatility, HALO falls into the low volatility category
1-Year High: HALO 1-month volatility reached a 1-year high of 74.12% on August 28, 2026
1-Year Low: HALO 1-month volatility reached a 1-year low of 18.70% on November 10, 2025

Performance

HALO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Sep 25, 26	22.53%	+2.3%	-68.4%	-29.4%	-15.2%	+6.0%	-42.0%	-21.1%
10-Day Volatility	Sep 25, 26	23.60%	+6.3%	-27.0%	-13.9%	-1.7%	+14.3%	-43.1%	-13.7%
3-Month Volatility	Sep 25, 26	47.56%	+0.2%	-2.9%	+46.2%	+63.8%	+118.1%	+40.3%	+82.5%
1-Year Volatility	Sep 25, 26	37.13%	-0.2%	+0.3%	+22.4%	-11.0%	-24.3%	-8.1%	-10.8%
14-Day RSI	Sep 25, 26	67.76	-6.3%	-14.6%	+10.1%	+31.6%	+31.4%	+64.3%	+60.9%
Beta	Sep 25, 26	0.52	-1.9%	-3.7%	-11.9%	-1.9%	-18.8%	-14.8%	-61.2%
ATR	Sep 25, 26	$3.09	-2.2%	+1.0%	+38.8%	+70.6%	+69.2%	+139.9%	+155.1%
Price	Sep 25, 26	$113.90	-1.1%	+4.2%	+56.8%	+69.2%	+54.0%	+192.9%	+182.7%
200-Day SMA	Sep 25, 26	$76.87	+0.3%	+5.8%	+11.3%	+20.8%	+29.6%	+82.5%	+75.4%
50-Day SMA	Sep 25, 26	$98.99	+0.8%	+17.0%	+45.3%	+47.2%	+44.9%	+136.7%	+139.8%
20-Day SMA	Sep 25, 26	$109.24	+0.3%	+12.6%	+56.6%	+67.2%	+44.4%	+170.6%	+161.8%

1-Month Volatility History

Date	Value	Change
Sep 25, 2026	22.53%	-25.4%
Dec 31, 2025	30.20%	+43.3%
Dec 31, 2024	21.08%	-50.9%
Dec 31, 2023	42.96%	+33.2%
Dec 31, 2022	32.25%	-39.3%
Dec 31, 2021	53.16%	+23.9%
Dec 31, 2020	42.90%	+67.8%
Dec 31, 2019	25.56%	-47.5%
Dec 31, 2018	48.69%	+29.2%
Dec 31, 2017	37.68%	-20.5%
Dec 31, 2016	47.41%	-0.8%
Dec 31, 2015	47.81%	-23.3%

Date	Value	Change
Dec 31, 2014	62.34%	-18.0%
Dec 31, 2013	76.02%	-29.1%
Dec 31, 2012	107.24%	+180.7%
Dec 31, 2011	38.20%	+139.9%
Dec 31, 2010	15.92%	-64.0%
Dec 31, 2009	44.23%	-66.3%
Dec 31, 2008	131.34%	+83.6%
Dec 31, 2007	71.54%	-69.1%
Dec 31, 2006	231.42%	+183.7%
Dec 31, 2005	81.57%	+13.8%
Dec 31, 2004	71.66%	-

FAQ

What is the current 1-month volatility of HALO?: As of today, HALO 1-month volatility is 22.53%
What 1-month volatility category does HALO fall into?: Based on its current 1-month historical volatility, HALO falls into the low volatility category
What is HALO 1-month volatility 1-year high?: HALO 1-month volatility reached a 1-year high of 74.12% on August 28, 2026
What is HALO 1-month volatility 1-year low?: HALO 1-month volatility reached a 1-year low of 18.70% on November 10, 2025

3-Month

47.56%

September 25, 2026

Summary

Current Value: As of today, HALO 3-month volatility is 47.56%, up +0.17% on September 25, 2026
Value Category: Based on its current 3-month historical volatility, HALO falls into the high volatility category
1-Year High: HALO 3-month volatility reached a 1-year high of 51.06% on August 7, 2026
1-Year Low: HALO 3-month volatility reached a 1-year low of 21.81% on September 25, 2025

Performance

HALO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 25, 26	47.56%	+0.2%	-2.9%	+46.2%	+63.8%	+118.1%	+40.3%	+82.5%
10-Day Volatility	Sep 25, 26	23.60%	+6.3%	-27.0%	-13.9%	-1.7%	+14.3%	-43.1%	-13.7%
1-Month Volatility	Sep 25, 26	22.53%	+2.3%	-68.4%	-29.4%	-15.2%	+6.0%	-42.0%	-21.1%
1-Year Volatility	Sep 25, 26	37.13%	-0.2%	+0.3%	+22.4%	-11.0%	-24.3%	-8.1%	-10.8%
14-Day RSI	Sep 25, 26	67.76	-6.3%	-14.6%	+10.1%	+31.6%	+31.4%	+64.3%	+60.9%
Beta	Sep 25, 26	0.52	-1.9%	-3.7%	-11.9%	-1.9%	-18.8%	-14.8%	-61.2%
ATR	Sep 25, 26	$3.09	-2.2%	+1.0%	+38.8%	+70.6%	+69.2%	+139.9%	+155.1%
Price	Sep 25, 26	$113.90	-1.1%	+4.2%	+56.8%	+69.2%	+54.0%	+192.9%	+182.7%
200-Day SMA	Sep 25, 26	$76.87	+0.3%	+5.8%	+11.3%	+20.8%	+29.6%	+82.5%	+75.4%
50-Day SMA	Sep 25, 26	$98.99	+0.8%	+17.0%	+45.3%	+47.2%	+44.9%	+136.7%	+139.8%
20-Day SMA	Sep 25, 26	$109.24	+0.3%	+12.6%	+56.6%	+67.2%	+44.4%	+170.6%	+161.8%

3-Month Volatility History

Date	Value	Change
Sep 25, 2026	47.56%	+63.0%
Dec 31, 2025	29.17%	-50.3%
Dec 31, 2024	58.74%	+32.0%
Dec 31, 2023	44.50%	+26.4%
Dec 31, 2022	35.20%	-14.5%
Dec 31, 2021	41.16%	-19.8%
Dec 31, 2020	51.29%	+54.1%
Dec 31, 2019	33.28%	-37.5%
Dec 31, 2018	53.26%	+25.1%
Dec 31, 2017	42.58%	-37.6%
Dec 31, 2016	68.20%	+3.1%
Dec 31, 2015	66.14%	+39.8%

Date	Value	Change
Dec 31, 2014	47.31%	-32.6%
Dec 31, 2013	70.23%	-3.9%
Dec 31, 2012	73.10%	+15.8%
Dec 31, 2011	63.10%	+113.7%
Dec 31, 2010	29.53%	-33.2%
Dec 31, 2009	44.21%	-60.0%
Dec 31, 2008	110.63%	+79.9%
Dec 31, 2007	61.49%	-55.6%
Dec 31, 2006	138.60%	+156.8%
Dec 31, 2005	53.98%	-31.9%
Dec 31, 2004	79.29%	-

FAQ

What is the current 3-month volatility of HALO?: As of today, HALO 3-month volatility is 47.56%
What 3-month volatility category does HALO fall into?: Based on its current 3-month historical volatility, HALO falls into the high volatility category
What is HALO 3-month volatility 1-year high?: HALO 3-month volatility reached a 1-year high of 51.06% on August 7, 2026
What is HALO 3-month volatility 1-year low?: HALO 3-month volatility reached a 1-year low of 21.81% on September 25, 2025

1-Year

37.13%

September 25, 2026

Summary

Current Value: As of today, HALO 1-year volatility is 37.13%, down -0.16% on September 25, 2026
Value Category: Based on its current 1-year historical volatility, HALO falls into the moderate volatility category
1-Year High: HALO 1-year volatility reached a 1-year high of 49.25% on October 3, 2025
1-Year Low: HALO 1-year volatility reached a 1-year low of 29.71% on May 26, 2026

Performance

HALO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 25, 26	37.13%	-0.2%	+0.3%	+22.4%	-11.0%	-24.3%	-8.1%	-10.8%
10-Day Volatility	Sep 25, 26	23.60%	+6.3%	-27.0%	-13.9%	-1.7%	+14.3%	-43.1%	-13.7%
1-Month Volatility	Sep 25, 26	22.53%	+2.3%	-68.4%	-29.4%	-15.2%	+6.0%	-42.0%	-21.1%
3-Month Volatility	Sep 25, 26	47.56%	+0.2%	-2.9%	+46.2%	+63.8%	+118.1%	+40.3%	+82.5%
1-Year Volatility	Sep 25, 26	37.13%	-0.2%	+0.3%	+22.4%	-11.0%	-24.3%	-8.1%	-10.8%
14-Day RSI	Sep 25, 26	67.76	-6.3%	-14.6%	+10.1%	+31.6%	+31.4%	+64.3%	+60.9%
Beta	Sep 25, 26	0.52	-1.9%	-3.7%	-11.9%	-1.9%	-18.8%	-14.8%	-61.2%
ATR	Sep 25, 26	$3.09	-2.2%	+1.0%	+38.8%	+70.6%	+69.2%	+139.9%	+155.1%
Price	Sep 25, 26	$113.90	-1.1%	+4.2%	+56.8%	+69.2%	+54.0%	+192.9%	+182.7%
200-Day SMA	Sep 25, 26	$76.87	+0.3%	+5.8%	+11.3%	+20.8%	+29.6%	+82.5%	+75.4%
50-Day SMA	Sep 25, 26	$98.99	+0.8%	+17.0%	+45.3%	+47.2%	+44.9%	+136.7%	+139.8%
20-Day SMA	Sep 25, 26	$109.24	+0.3%	+12.6%	+56.6%	+67.2%	+44.4%	+170.6%	+161.8%

1-Year Volatility History

Date	Value	Change
Sep 25, 2026	37.13%	-11.0%
Dec 31, 2025	41.73%	+2.2%
Dec 31, 2024	40.82%	-3.4%
Dec 31, 2023	42.26%	+14.3%
Dec 31, 2022	36.98%	-4.0%
Dec 31, 2021	38.54%	-21.4%
Dec 31, 2020	49.04%	+50.5%
Dec 31, 2019	32.58%	-21.6%
Dec 31, 2018	41.58%	-16.7%
Dec 31, 2017	49.93%	-26.1%
Dec 31, 2016	67.54%	+12.8%
Dec 31, 2015	59.90%	+3.6%

Date	Value	Change
Dec 31, 2014	57.83%	-24.3%
Dec 31, 2013	76.41%	-10.8%
Dec 31, 2012	85.67%	+77.3%
Dec 31, 2011	48.33%	-4.4%
Dec 31, 2010	50.56%	-20.3%
Dec 31, 2009	63.41%	-25.9%
Dec 31, 2008	85.53%	+63.7%
Dec 31, 2007	52.26%	-38.3%
Dec 31, 2006	84.72%	+50.2%
Dec 31, 2005	56.39%	-30.0%
Dec 31, 2004	80.57%	-

FAQ

What is the current 1-year volatility of HALO?: As of today, HALO 1-year volatility is 37.13%
What 1-year volatility category does HALO fall into?: Based on its current 1-year historical volatility, HALO falls into the moderate volatility category
What is HALO 1-year volatility 1-year high?: HALO 1-year volatility reached a 1-year high of 49.25% on October 3, 2025
What is HALO 1-year volatility 1-year low?: HALO 1-year volatility reached a 1-year low of 29.71% on May 26, 2026

Data Sources & References

HALO Official Website halozyme.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1159036/000115903626000024/0001159036-26-000024-index.htm
HALO Profile on Yahoo Finance finance.yahoo.com/quote/HALO
HALO Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/halo