What is the current 10-day volatility of HTO?

As of today, HTO 10-day volatility is 16.02%

What 10-day volatility category does HTO fall into?

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

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

HTO 10-day volatility reached a 1-year high of 49.40% on February 4, 2025

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

HTO 10-day volatility reached a 1-year low of 11.17% on August 15, 2025

What is the current 1-month volatility of HTO?

As of today, HTO 1-month volatility is 17.19%

What 1-month volatility category does HTO fall into?

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

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

HTO 1-month volatility reached a 1-year high of 39.31% on February 3, 2025

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

HTO 1-month volatility reached a 1-year low of 16.37% on October 6, 2025

What is the current 3-month volatility of HTO?

As of today, HTO 3-month volatility is 24.64%

What 3-month volatility category does HTO fall into?

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

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

HTO 3-month volatility reached a 1-year high of 32.10% on April 14, 2025

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

HTO 3-month volatility reached a 1-year low of 19.01% on October 15, 2025

What is the current 1-year volatility of HTO?

As of today, HTO 1-year volatility is 25.87%

What 1-year volatility category does HTO fall into?

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

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

HTO 1-year volatility reached a 1-year high of 26.81% on July 1, 2025

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

HTO 1-year volatility reached a 1-year low of 22.79% on January 15, 2025

H2O America (HTO) Stock Volatility History & Chart

10-Day

16.02%

January 9, 2026

Summary

Current Value: As of today, HTO 10-day volatility is 16.02%, up +22.20% on January 9, 2026
Value Category: Based on its current 10-day historical volatility, HTO falls into the low volatility category
1-Year High: HTO 10-day volatility reached a 1-year high of 49.40% on February 4, 2025
1-Year Low: HTO 10-day volatility reached a 1-year low of 11.17% on August 15, 2025

10-Day Volatility Chart

Performance

HTO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Jan 9, 26	16.02%	+22.2%	-28.7%	-25.9%	-11.5%	-0.8%	-49.5%	-29.9%
1-Month Volatility	Jan 9, 26	17.19%	-3.7%	-26.1%	+1.6%	-18.5%	-23.9%	-37.7%	-37.7%
3-Month Volatility	Jan 9, 26	24.64%	+1.9%	+4.6%	+22.8%	+1.9%	+10.1%	-19.4%	-20.4%
1-Year Volatility	Jan 9, 26	25.87%	+0.1%	-1.4%	+1.3%	-0.3%	+13.0%	-1.5%	-53.5%
14-Day RSI	Jan 9, 26	69.39	+9.2%	+47.8%	+40.4%	+27.8%	+236.5%	+39.5%	+22.0%
Beta	Jan 9, 26	0.00	0.0%	-100.0%	-100.0%	+100.0%	-100.0%	-100.0%	-100.0%
ATR	Jan 9, 26	$1.15	+0.3%	-5.8%	+12.8%	+4.2%	-6.0%	-41.7%	-40.1%
Price	Jan 9, 26	$51.59	+2.1%	+10.8%	+6.6%	+5.3%	+11.5%	-34.6%	-25.9%
200-Day SMA	Jan 9, 26	$50.38	0.0%	-0.8%	-1.6%	-0.1%	-9.9%	-24.1%	-19.8%
50-Day SMA	Jan 9, 26	$47.83	+0.1%	+0.5%	-2.8%	-0.0%	-10.1%	-36.9%	-28.2%

10-Day Volatility History

Date	Value	Change
Jan 9, 2026	16.02%	-11.5%
Dec 31, 2025	18.10%	-32.4%
Dec 31, 2024	26.79%	+56.6%
Dec 31, 2023	17.11%	-34.1%
Dec 31, 2022	25.98%	+57.8%
Dec 31, 2021	16.46%	-42.5%
Dec 31, 2020	28.61%	+72.1%
Dec 31, 2019	16.62%	-45.9%
Dec 31, 2018	30.73%	+84.8%
Dec 31, 2017	16.63%	-4.0%
Dec 31, 2016	17.32%	-15.9%
Dec 31, 2015	20.60%	-20.2%
Dec 31, 2014	25.80%	-25.8%
Dec 31, 2013	34.79%	+12.1%
Dec 31, 2012	31.04%	-8.2%
Dec 31, 2011	33.83%	+18.6%
Dec 31, 2010	28.52%	+57.5%
Dec 31, 2009	18.11%	-53.0%
Dec 31, 2008	38.56%	-57.2%
Dec 31, 2007	90.14%	+52.5%
Dec 31, 2006	59.11%	+90.1%
Dec 31, 2005	31.10%	+261.6%
Dec 31, 2004	8.60%	-65.2%
Dec 31, 2003	24.69%	+69.5%
Dec 31, 2002	14.57%	-19.0%
Dec 31, 2001	17.99%	-12.2%

Date	Value	Change
Dec 31, 2000	20.50%	+117.6%
Dec 31, 1999	9.42%	-40.8%
Dec 31, 1998	15.91%	+22.8%
Dec 31, 1997	12.96%	-52.3%
Dec 31, 1996	27.18%	+81.6%
Dec 31, 1995	14.97%	-1.7%
Dec 31, 1994	15.23%	-23.5%
Dec 31, 1993	19.91%	+94.8%
Dec 31, 1992	10.22%	-45.3%
Dec 31, 1991	18.67%	-24.8%
Dec 31, 1990	24.83%	+76.6%
Dec 31, 1989	14.06%	+50.1%
Dec 31, 1988	9.37%	-64.2%
Dec 31, 1987	26.18%	-47.1%
Dec 31, 1986	49.45%	+167.7%
Dec 31, 1985	18.47%	+53.8%
Dec 31, 1984	12.01%	+29.7%
Dec 31, 1983	9.26%	+23.5%
Dec 31, 1982	7.50%	+34.6%
Dec 31, 1981	5.57%	-72.3%
Dec 31, 1980	20.14%	+3.9%
Dec 31, 1979	19.38%	+225.7%
Dec 31, 1978	5.95%	-40.9%
Dec 31, 1977	10.07%	-64.5%
Dec 31, 1976	28.33%	+1.3%
Dec 31, 1975	27.97%	-

FAQ

What is the current 10-day volatility of HTO?
As of today, HTO 10-day volatility is 16.02%
What 10-day volatility category does HTO fall into?
Based on its current 10-day historical volatility, HTO falls into the low volatility category
What is HTO 10-day volatility 1-year high?
HTO 10-day volatility reached a 1-year high of 49.40% on February 4, 2025
What is HTO 10-day volatility 1-year low?
HTO 10-day volatility reached a 1-year low of 11.17% on August 15, 2025

1-Month

17.19%

January 9, 2026

Summary

Current Value: As of today, HTO 1-month volatility is 17.19%, down -3.70% on January 9, 2026
Value Category: Based on its current 1-month historical volatility, HTO falls into the low volatility category
1-Year High: HTO 1-month volatility reached a 1-year high of 39.31% on February 3, 2025
1-Year Low: HTO 1-month volatility reached a 1-year low of 16.37% on October 6, 2025

Performance

HTO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Jan 9, 26	17.19%	-3.7%	-26.1%	+1.6%	-18.5%	-23.9%	-37.7%	-37.7%
10-Day Volatility	Jan 9, 26	16.02%	+22.2%	-28.7%	-25.9%	-11.5%	-0.8%	-49.5%	-29.9%
3-Month Volatility	Jan 9, 26	24.64%	+1.9%	+4.6%	+22.8%	+1.9%	+10.1%	-19.4%	-20.4%
1-Year Volatility	Jan 9, 26	25.87%	+0.1%	-1.4%	+1.3%	-0.3%	+13.0%	-1.5%	-53.5%
14-Day RSI	Jan 9, 26	69.39	+9.2%	+47.8%	+40.4%	+27.8%	+236.5%	+39.5%	+22.0%
Beta	Jan 9, 26	0.00	0.0%	-100.0%	-100.0%	+100.0%	-100.0%	-100.0%	-100.0%
ATR	Jan 9, 26	$1.15	+0.3%	-5.8%	+12.8%	+4.2%	-6.0%	-41.7%	-40.1%
Price	Jan 9, 26	$51.59	+2.1%	+10.8%	+6.6%	+5.3%	+11.5%	-34.6%	-25.9%
200-Day SMA	Jan 9, 26	$50.38	0.0%	-0.8%	-1.6%	-0.1%	-9.9%	-24.1%	-19.8%
50-Day SMA	Jan 9, 26	$47.83	+0.1%	+0.5%	-2.8%	-0.0%	-10.1%	-36.9%	-28.2%

1-Month Volatility History

Date	Value	Change
Jan 9, 2026	18.74%	-9.6%
Dec 31, 2025	20.73%	-11.7%
Dec 31, 2024	23.49%	+1.3%
Dec 31, 2023	23.20%	-28.4%
Dec 31, 2022	32.42%	+105.4%
Dec 31, 2021	15.78%	-36.6%
Dec 31, 2020	24.88%	+63.1%
Dec 31, 2019	15.25%	-43.2%
Dec 31, 2018	26.84%	+60.1%
Dec 31, 2017	16.76%	-2.3%
Dec 31, 2016	17.15%	-36.9%
Dec 31, 2015	27.16%	-21.2%
Dec 31, 2014	34.48%	+3.3%
Dec 31, 2013	33.37%	+13.8%
Dec 31, 2012	29.32%	-14.3%
Dec 31, 2011	34.20%	+22.2%
Dec 31, 2010	27.99%	+15.2%
Dec 31, 2009	24.29%	-71.3%
Dec 31, 2008	84.52%	+26.2%
Dec 31, 2007	66.97%	+39.2%
Dec 31, 2006	48.12%	+49.9%
Dec 31, 2005	32.11%	+181.4%
Dec 31, 2004	11.41%	-44.7%
Dec 31, 2003	20.64%	+49.2%
Dec 31, 2002	13.83%	-35.9%
Dec 31, 2001	21.57%	-24.8%

Date	Value	Change
Dec 31, 2000	28.70%	+340.2%
Dec 31, 1999	6.52%	-62.5%
Dec 31, 1998	17.39%	+70.7%
Dec 31, 1997	10.19%	-48.0%
Dec 31, 1996	19.59%	+51.2%
Dec 31, 1995	12.96%	-7.7%
Dec 31, 1994	14.04%	-19.9%
Dec 31, 1993	17.53%	+5.7%
Dec 31, 1992	16.58%	-7.6%
Dec 31, 1991	17.94%	-9.4%
Dec 31, 1990	19.81%	+55.6%
Dec 31, 1989	12.73%	+60.3%
Dec 31, 1988	7.94%	-63.6%
Dec 31, 1987	21.80%	-36.6%
Dec 31, 1986	34.36%	+68.9%
Dec 31, 1985	20.34%	+83.9%
Dec 31, 1984	11.06%	+18.7%
Dec 31, 1983	9.32%	-35.5%
Dec 31, 1982	14.45%	+60.7%
Dec 31, 1981	8.99%	-52.7%
Dec 31, 1980	19.02%	-35.9%
Dec 31, 1979	29.69%	+199.3%
Dec 31, 1978	9.92%	-24.4%
Dec 31, 1977	13.12%	-39.4%
Dec 31, 1976	21.66%	+6.5%
Dec 31, 1975	20.33%	-

FAQ

What is the current 1-month volatility of HTO?
As of today, HTO 1-month volatility is 17.19%
What 1-month volatility category does HTO fall into?
Based on its current 1-month historical volatility, HTO falls into the low volatility category
What is HTO 1-month volatility 1-year high?
HTO 1-month volatility reached a 1-year high of 39.31% on February 3, 2025
What is HTO 1-month volatility 1-year low?
HTO 1-month volatility reached a 1-year low of 16.37% on October 6, 2025

3-Month

24.64%

January 9, 2026

Summary

Current Value: As of today, HTO 3-month volatility is 24.64%, up +1.94% on January 9, 2026
Value Category: Based on its current 3-month historical volatility, HTO falls into the low volatility category
1-Year High: HTO 3-month volatility reached a 1-year high of 32.10% on April 14, 2025
1-Year Low: HTO 3-month volatility reached a 1-year low of 19.01% on October 15, 2025

Performance

HTO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Jan 9, 26	24.64%	+1.9%	+4.6%	+22.8%	+1.9%	+10.1%	-19.4%	-20.4%
10-Day Volatility	Jan 9, 26	16.02%	+22.2%	-28.7%	-25.9%	-11.5%	-0.8%	-49.5%	-29.9%
1-Month Volatility	Jan 9, 26	17.19%	-3.7%	-26.1%	+1.6%	-18.5%	-23.9%	-37.7%	-37.7%
1-Year Volatility	Jan 9, 26	25.87%	+0.1%	-1.4%	+1.3%	-0.3%	+13.0%	-1.5%	-53.5%
14-Day RSI	Jan 9, 26	69.39	+9.2%	+47.8%	+40.4%	+27.8%	+236.5%	+39.5%	+22.0%
Beta	Jan 9, 26	0.00	0.0%	-100.0%	-100.0%	+100.0%	-100.0%	-100.0%	-100.0%
ATR	Jan 9, 26	$1.15	+0.3%	-5.8%	+12.8%	+4.2%	-6.0%	-41.7%	-40.1%
Price	Jan 9, 26	$51.59	+2.1%	+10.8%	+6.6%	+5.3%	+11.5%	-34.6%	-25.9%
200-Day SMA	Jan 9, 26	$50.38	0.0%	-0.8%	-1.6%	-0.1%	-9.9%	-24.1%	-19.8%
50-Day SMA	Jan 9, 26	$47.83	+0.1%	+0.5%	-2.8%	-0.0%	-10.1%	-36.9%	-28.2%

3-Month Volatility History

Date	Value	Change
Jan 9, 2026	24.47%	-0.9%
Dec 31, 2025	24.69%	+11.1%
Dec 31, 2024	22.22%	-14.7%
Dec 31, 2023	26.06%	-16.9%
Dec 31, 2022	31.36%	+35.6%
Dec 31, 2021	23.12%	-24.7%
Dec 31, 2020	30.70%	+84.6%
Dec 31, 2019	16.63%	-51.9%
Dec 31, 2018	34.58%	+58.0%
Dec 31, 2017	21.89%	-42.0%
Dec 31, 2016	37.76%	+33.5%
Dec 31, 2015	28.28%	-5.2%
Dec 31, 2014	29.83%	+15.3%
Dec 31, 2013	25.88%	+3.7%
Dec 31, 2012	24.96%	-40.0%
Dec 31, 2011	41.59%	+80.0%
Dec 31, 2010	23.11%	-19.3%
Dec 31, 2009	28.65%	-70.7%
Dec 31, 2008	97.85%	+69.5%
Dec 31, 2007	57.73%	+44.7%
Dec 31, 2006	39.91%	+15.8%
Dec 31, 2005	34.46%	+86.1%
Dec 31, 2004	18.52%	+15.0%
Dec 31, 2003	16.10%	+13.5%
Dec 31, 2002	14.19%	-28.7%
Dec 31, 2001	19.90%	+0.3%

Date	Value	Change
Dec 31, 2000	19.84%	-34.2%
Dec 31, 1999	30.16%	+11.2%
Dec 31, 1998	27.13%	+136.7%
Dec 31, 1997	11.46%	-23.8%
Dec 31, 1996	15.04%	+25.5%
Dec 31, 1995	11.98%	-7.4%
Dec 31, 1994	12.94%	-17.5%
Dec 31, 1993	15.69%	-7.6%
Dec 31, 1992	16.98%	-6.9%
Dec 31, 1991	18.23%	+33.9%
Dec 31, 1990	13.61%	-4.0%
Dec 31, 1989	14.17%	+31.1%
Dec 31, 1988	10.81%	-61.1%
Dec 31, 1987	27.82%	+34.4%
Dec 31, 1986	20.70%	+29.4%
Dec 31, 1985	16.00%	+20.8%
Dec 31, 1984	13.24%	+48.1%
Dec 31, 1983	8.94%	-45.8%
Dec 31, 1982	16.49%	-21.6%
Dec 31, 1981	21.03%	+32.0%
Dec 31, 1980	15.93%	-39.0%
Dec 31, 1979	26.13%	-1.2%
Dec 31, 1978	26.45%	+61.8%
Dec 31, 1977	16.35%	-0.2%
Dec 31, 1976	16.38%	+12.8%
Dec 31, 1975	14.52%	-

FAQ

What is the current 3-month volatility of HTO?
As of today, HTO 3-month volatility is 24.64%
What 3-month volatility category does HTO fall into?
Based on its current 3-month historical volatility, HTO falls into the low volatility category
What is HTO 3-month volatility 1-year high?
HTO 3-month volatility reached a 1-year high of 32.10% on April 14, 2025
What is HTO 3-month volatility 1-year low?
HTO 3-month volatility reached a 1-year low of 19.01% on October 15, 2025

1-Year

25.87%

January 9, 2026

Summary

Current Value: As of today, HTO 1-year volatility is 25.87%, up +0.08% on January 9, 2026
Value Category: Based on its current 1-year historical volatility, HTO falls into the moderate volatility category
1-Year High: HTO 1-year volatility reached a 1-year high of 26.81% on July 1, 2025
1-Year Low: HTO 1-year volatility reached a 1-year low of 22.79% on January 15, 2025

Performance

HTO Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Jan 9, 26	25.87%	+0.1%	-1.4%	+1.3%	-0.3%	+13.0%	-1.5%	-53.5%
10-Day Volatility	Jan 9, 26	16.02%	+22.2%	-28.7%	-25.9%	-11.5%	-0.8%	-49.5%	-29.9%
1-Month Volatility	Jan 9, 26	17.19%	-3.7%	-26.1%	+1.6%	-18.5%	-23.9%	-37.7%	-37.7%
3-Month Volatility	Jan 9, 26	24.64%	+1.9%	+4.6%	+22.8%	+1.9%	+10.1%	-19.4%	-20.4%
1-Year Volatility	Jan 9, 26	25.87%	+0.1%	-1.4%	+1.3%	-0.3%	+13.0%	-1.5%	-53.5%
14-Day RSI	Jan 9, 26	69.39	+9.2%	+47.8%	+40.4%	+27.8%	+236.5%	+39.5%	+22.0%
Beta	Jan 9, 26	0.00	0.0%	-100.0%	-100.0%	+100.0%	-100.0%	-100.0%	-100.0%
ATR	Jan 9, 26	$1.15	+0.3%	-5.8%	+12.8%	+4.2%	-6.0%	-41.7%	-40.1%
Price	Jan 9, 26	$51.59	+2.1%	+10.8%	+6.6%	+5.3%	+11.5%	-34.6%	-25.9%
200-Day SMA	Jan 9, 26	$50.38	0.0%	-0.8%	-1.6%	-0.1%	-9.9%	-24.1%	-19.8%
50-Day SMA	Jan 9, 26	$47.83	+0.1%	+0.5%	-2.8%	-0.0%	-10.1%	-36.9%	-28.2%

1-Year Volatility History

Date	Value	Change
Jan 9, 2026	25.88%	-0.3%
Dec 31, 2025	25.95%	+14.1%
Dec 31, 2024	22.75%	-1.5%
Dec 31, 2023	23.09%	-11.3%
Dec 31, 2022	26.03%	+17.5%
Dec 31, 2021	22.16%	-60.0%
Dec 31, 2020	55.45%	+249.2%
Dec 31, 2019	15.88%	-48.3%
Dec 31, 2018	30.72%	+16.4%
Dec 31, 2017	26.39%	-15.0%
Dec 31, 2016	31.04%	+17.8%
Dec 31, 2015	26.36%	+13.9%
Dec 31, 2014	23.15%	-2.5%
Dec 31, 2013	23.74%	+12.4%
Dec 31, 2012	21.12%	-34.6%
Dec 31, 2011	32.29%	-1.6%
Dec 31, 2010	32.80%	-23.1%
Dec 31, 2009	42.66%	-30.5%
Dec 31, 2008	61.36%	+19.5%
Dec 31, 2007	51.34%	+35.8%
Dec 31, 2006	37.81%	+8.5%
Dec 31, 2005	34.84%	+47.3%
Dec 31, 2004	23.65%	+41.7%
Dec 31, 2003	16.69%	-2.3%
Dec 31, 2002	17.08%	-52.9%
Dec 31, 2001	36.27%	+130.1%

Date	Value	Change
Dec 31, 2000	15.76%	-45.0%
Dec 31, 1999	28.66%	+24.7%
Dec 31, 1998	22.98%	+28.8%
Dec 31, 1997	17.84%	-10.8%
Dec 31, 1996	20.01%	+29.3%
Dec 31, 1995	15.47%	+27.6%
Dec 31, 1994	12.12%	-12.4%
Dec 31, 1993	13.84%	-19.6%
Dec 31, 1992	17.22%	+5.5%
Dec 31, 1991	16.33%	-3.8%
Dec 31, 1990	16.97%	+13.4%
Dec 31, 1989	14.97%	+16.5%
Dec 31, 1988	12.85%	-29.4%
Dec 31, 1987	18.19%	-16.1%
Dec 31, 1986	21.69%	-5.3%
Dec 31, 1985	22.91%	+64.6%
Dec 31, 1984	13.92%	-32.8%
Dec 31, 1983	20.70%	+20.0%
Dec 31, 1982	17.25%	-1.2%
Dec 31, 1981	17.46%	-9.0%
Dec 31, 1980	19.18%	+5.2%
Dec 31, 1979	18.24%	-8.4%
Dec 31, 1978	19.91%	-14.3%
Dec 31, 1977	23.23%	+41.8%
Dec 31, 1976	16.38%	+44.1%
Dec 31, 1975	11.37%	-

FAQ

What is the current 1-year volatility of HTO?
As of today, HTO 1-year volatility is 25.87%
What 1-year volatility category does HTO fall into?
Based on its current 1-year historical volatility, HTO falls into the moderate volatility category
What is HTO 1-year volatility 1-year high?
HTO 1-year volatility reached a 1-year high of 26.81% on July 1, 2025
What is HTO 1-year volatility 1-year low?
HTO 1-year volatility reached a 1-year low of 22.79% on January 15, 2025

Data Sources & References

HTO Official Website www.h2o-america.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/766829/000162828025046847/0001628280-25-046847-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/766829/000076682925000009/0000766829-25-000009-index.htm
HTO Profile on Yahoo Finance finance.yahoo.com/quote/HTO
HTO Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/hto