What is the current 10-day volatility of CLH?

As of today, CLH 10-day volatility is 29.41%

What 10-day volatility category does CLH fall into?

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

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

CLH 10-day volatility reached a 1-year high of 66.68% on October 29, 2025

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

CLH 10-day volatility reached a 1-year low of 6.63% on December 26, 2025

What is the current 1-month volatility of CLH?

As of today, CLH 1-month volatility is 21.69%

What 1-month volatility category does CLH fall into?

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

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

CLH 1-month volatility reached a 1-year high of 49.43% on November 26, 2025

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

CLH 1-month volatility reached a 1-year low of 9.63% on June 20, 2025

What is the current 3-month volatility of CLH?

As of today, CLH 3-month volatility is 24.48%

What 3-month volatility category does CLH fall into?

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

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

CLH 3-month volatility reached a 1-year high of 35.26% on January 21, 2026

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

CLH 3-month volatility reached a 1-year low of 13.79% on July 24, 2025

What is the current 1-year volatility of CLH?

As of today, CLH 1-year volatility is 27.45%

What 1-year volatility category does CLH fall into?

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

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

CLH 1-year volatility reached a 1-year high of 30.41% on April 22, 2025

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

CLH 1-year volatility reached a 1-year low of 26.71% on November 14, 2025

CLH Stock Volatility History & Chart Since 1987

10-Day

29.41%

February 20, 2026

Summary

Current Value: As of today, CLH 10-day volatility is 29.41%, up +0.07% on February 20, 2026
Value Category: Based on its current 10-day historical volatility, CLH falls into the moderate volatility category
1-Year High: CLH 10-day volatility reached a 1-year high of 66.68% on October 29, 2025
1-Year Low: CLH 10-day volatility reached a 1-year low of 6.63% on December 26, 2025

10-Day Volatility Chart

Performance

CLH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Feb 20, 26	29.41%	+0.1%	-0.4%	+6.3%	+186.9%	+42.4%	+160.7%	+20.2%
1-Month Volatility	Feb 20, 26	21.69%	-11.2%	-17.1%	-51.9%	+8.4%	+4.6%	+50.7%	-21.7%
3-Month Volatility	Feb 20, 26	24.48%	-1.1%	-30.5%	-21.4%	-27.1%	+5.6%	-12.2%	-9.1%
1-Year Volatility	Feb 20, 26	27.45%	-0.8%	-0.1%	+1.6%	+2.3%	+1.3%	-18.7%	-62.6%
14-Day RSI	Feb 20, 26	71.55	+3.0%	+16.5%	+72.0%	+44.6%	+223.3%	+1.6%	+20.1%
Beta	Feb 20, 26	0.77	0.0%	+1.3%	+4.0%	+4.0%	-30.0%	-12.5%	-47.3%
ATR	Feb 20, 26	$7.62	+0.1%	+27.8%	+23.8%	+78.4%	+28.1%	+176.1%	+266.2%
Price	Feb 20, 26	$284.69	+1.2%	+11.1%	+36.1%	+21.4%	+34.2%	+111.3%	+236.1%
200-Day SMA	Feb 20, 26	$236.56	+0.1%	+2.9%	+5.8%	+4.4%	+0.4%	+115.1%	+262.2%
50-Day SMA	Feb 20, 26	$254.31	+0.4%	+9.0%	+12.4%	+12.0%	+8.2%	+107.3%	+220.7%

10-Day Volatility History

Date	Value	Change
Feb 20, 2026	29.41%	+186.9%
Dec 31, 2025	10.25%	-46.5%
Dec 31, 2024	19.17%	+27.2%
Dec 31, 2023	15.07%	-45.7%
Dec 31, 2022	27.75%	-16.4%
Dec 31, 2021	33.18%	+128.8%
Dec 31, 2020	14.50%	-10.9%
Dec 31, 2019	16.27%	-58.5%
Dec 31, 2018	39.23%	+107.9%
Dec 31, 2017	18.87%	+39.4%
Dec 31, 2016	13.54%	-59.4%
Dec 31, 2015	33.37%	-17.4%
Dec 31, 2014	40.41%	+200.0%
Dec 31, 2013	13.47%	-67.9%
Dec 31, 2012	41.94%	+44.9%
Dec 31, 2011	28.94%	+161.9%
Dec 31, 2010	11.05%	-58.7%
Dec 31, 2009	26.77%	+26.5%
Dec 31, 2008	21.17%	-22.8%
Dec 31, 2007	27.41%	+71.5%

Date	Value	Change
Dec 31, 2006	15.98%	-33.5%
Dec 31, 2005	24.02%	-52.5%
Dec 31, 2004	50.57%	-15.3%
Dec 31, 2003	59.71%	+143.4%
Dec 31, 2002	24.53%	-50.3%
Dec 31, 2001	49.35%	-46.6%
Dec 31, 2000	92.38%	-18.1%
Dec 31, 1999	112.84%	-5.9%
Dec 31, 1998	119.94%	+72.8%
Dec 31, 1997	69.42%	-32.9%
Dec 31, 1996	103.43%	+20.7%
Dec 31, 1995	85.68%	+45.8%
Dec 31, 1994	58.78%	-48.6%
Dec 31, 1993	114.25%	+55.4%
Dec 31, 1992	73.53%	+108.5%
Dec 31, 1991	35.27%	-72.9%
Dec 31, 1990	130.19%	+184.8%
Dec 31, 1989	45.71%	+25.6%
Dec 31, 1988	36.39%	-67.3%
Dec 31, 1987	111.45%	-

FAQ

What is the current 10-day volatility of CLH?
As of today, CLH 10-day volatility is 29.41%
What 10-day volatility category does CLH fall into?
Based on its current 10-day historical volatility, CLH falls into the moderate volatility category
What is CLH 10-day volatility 1-year high?
CLH 10-day volatility reached a 1-year high of 66.68% on October 29, 2025
What is CLH 10-day volatility 1-year low?
CLH 10-day volatility reached a 1-year low of 6.63% on December 26, 2025

1-Month

21.69%

February 20, 2026

Summary

Current Value: As of today, CLH 1-month volatility is 21.69%, down -11.18% on February 20, 2026
Value Category: Based on its current 1-month historical volatility, CLH falls into the low volatility category
1-Year High: CLH 1-month volatility reached a 1-year high of 49.43% on November 26, 2025
1-Year Low: CLH 1-month volatility reached a 1-year low of 9.63% on June 20, 2025

Performance

CLH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Feb 20, 26	21.69%	-11.2%	-17.1%	-51.9%	+8.4%	+4.6%	+50.7%	-21.7%
10-Day Volatility	Feb 20, 26	29.41%	+0.1%	-0.4%	+6.3%	+186.9%	+42.4%	+160.7%	+20.2%
3-Month Volatility	Feb 20, 26	24.48%	-1.1%	-30.5%	-21.4%	-27.1%	+5.6%	-12.2%	-9.1%
1-Year Volatility	Feb 20, 26	27.45%	-0.8%	-0.1%	+1.6%	+2.3%	+1.3%	-18.7%	-62.6%
14-Day RSI	Feb 20, 26	71.55	+3.0%	+16.5%	+72.0%	+44.6%	+223.3%	+1.6%	+20.1%
Beta	Feb 20, 26	0.77	0.0%	+1.3%	+4.0%	+4.0%	-30.0%	-12.5%	-47.3%
ATR	Feb 20, 26	$7.62	+0.1%	+27.8%	+23.8%	+78.4%	+28.1%	+176.1%	+266.2%
Price	Feb 20, 26	$284.69	+1.2%	+11.1%	+36.1%	+21.4%	+34.2%	+111.3%	+236.1%
200-Day SMA	Feb 20, 26	$236.56	+0.1%	+2.9%	+5.8%	+4.4%	+0.4%	+115.1%	+262.2%
50-Day SMA	Feb 20, 26	$254.31	+0.4%	+9.0%	+12.4%	+12.0%	+8.2%	+107.3%	+220.7%

1-Month Volatility History

Date	Value	Change
Feb 20, 2026	21.69%	+10.9%
Dec 31, 2025	19.55%	-28.6%
Dec 31, 2024	27.39%	+10.0%
Dec 31, 2023	24.89%	-20.9%
Dec 31, 2022	31.48%	-13.9%
Dec 31, 2021	36.55%	+97.9%
Dec 31, 2020	18.47%	+28.4%
Dec 31, 2019	14.38%	-63.4%
Dec 31, 2018	39.30%	+133.8%
Dec 31, 2017	16.81%	+20.2%
Dec 31, 2016	13.98%	-51.4%
Dec 31, 2015	28.79%	-11.6%
Dec 31, 2014	32.57%	+139.5%
Dec 31, 2013	13.60%	-55.1%
Dec 31, 2012	30.28%	-2.0%
Dec 31, 2011	30.91%	+77.2%
Dec 31, 2010	17.44%	-31.8%
Dec 31, 2009	25.58%	-45.1%
Dec 31, 2008	46.59%	+79.9%
Dec 31, 2007	25.90%	+54.5%

Date	Value	Change
Dec 31, 2006	16.76%	-50.9%
Dec 31, 2005	34.15%	-32.6%
Dec 31, 2004	50.68%	-23.6%
Dec 31, 2003	66.34%	+28.1%
Dec 31, 2002	51.77%	+2.1%
Dec 31, 2001	50.72%	-43.5%
Dec 31, 2000	89.76%	+6.9%
Dec 31, 1999	83.97%	-1.8%
Dec 31, 1998	85.51%	+29.2%
Dec 31, 1997	66.19%	-13.0%
Dec 31, 1996	76.12%	-25.3%
Dec 31, 1995	101.93%	+47.6%
Dec 31, 1994	69.08%	-27.5%
Dec 31, 1993	95.31%	+36.1%
Dec 31, 1992	70.01%	+7.2%
Dec 31, 1991	65.29%	-50.5%
Dec 31, 1990	131.79%	+100.2%
Dec 31, 1989	65.83%	+69.9%
Dec 31, 1988	38.75%	-51.4%
Dec 31, 1987	79.67%	-

FAQ

What is the current 1-month volatility of CLH?
As of today, CLH 1-month volatility is 21.69%
What 1-month volatility category does CLH fall into?
Based on its current 1-month historical volatility, CLH falls into the low volatility category
What is CLH 1-month volatility 1-year high?
CLH 1-month volatility reached a 1-year high of 49.43% on November 26, 2025
What is CLH 1-month volatility 1-year low?
CLH 1-month volatility reached a 1-year low of 9.63% on June 20, 2025

3-Month

24.48%

February 20, 2026

Summary

Current Value: As of today, CLH 3-month volatility is 24.48%, down -1.13% on February 20, 2026
Value Category: Based on its current 3-month historical volatility, CLH falls into the low volatility category
1-Year High: CLH 3-month volatility reached a 1-year high of 35.26% on January 21, 2026
1-Year Low: CLH 3-month volatility reached a 1-year low of 13.79% on July 24, 2025

Performance

CLH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Feb 20, 26	24.48%	-1.1%	-30.5%	-21.4%	-27.1%	+5.6%	-12.2%	-9.1%
10-Day Volatility	Feb 20, 26	29.41%	+0.1%	-0.4%	+6.3%	+186.9%	+42.4%	+160.7%	+20.2%
1-Month Volatility	Feb 20, 26	21.69%	-11.2%	-17.1%	-51.9%	+8.4%	+4.6%	+50.7%	-21.7%
1-Year Volatility	Feb 20, 26	27.45%	-0.8%	-0.1%	+1.6%	+2.3%	+1.3%	-18.7%	-62.6%
14-Day RSI	Feb 20, 26	71.55	+3.0%	+16.5%	+72.0%	+44.6%	+223.3%	+1.6%	+20.1%
Beta	Feb 20, 26	0.77	0.0%	+1.3%	+4.0%	+4.0%	-30.0%	-12.5%	-47.3%
ATR	Feb 20, 26	$7.62	+0.1%	+27.8%	+23.8%	+78.4%	+28.1%	+176.1%	+266.2%
Price	Feb 20, 26	$284.69	+1.2%	+11.1%	+36.1%	+21.4%	+34.2%	+111.3%	+236.1%
200-Day SMA	Feb 20, 26	$236.56	+0.1%	+2.9%	+5.8%	+4.4%	+0.4%	+115.1%	+262.2%
50-Day SMA	Feb 20, 26	$254.31	+0.4%	+9.0%	+12.4%	+12.0%	+8.2%	+107.3%	+220.7%

3-Month Volatility History

Date	Value	Change
Feb 20, 2026	24.48%	-26.9%
Dec 31, 2025	33.49%	-3.7%
Dec 31, 2024	34.78%	+28.6%
Dec 31, 2023	27.05%	-25.6%
Dec 31, 2022	36.38%	+6.6%
Dec 31, 2021	34.12%	-14.1%
Dec 31, 2020	39.73%	+64.6%
Dec 31, 2019	24.13%	-30.9%
Dec 31, 2018	34.92%	+110.2%
Dec 31, 2017	16.61%	-32.6%
Dec 31, 2016	24.64%	-16.1%
Dec 31, 2015	29.36%	-14.1%
Dec 31, 2014	34.16%	+64.7%
Dec 31, 2013	20.74%	-54.0%
Dec 31, 2012	45.09%	+4.5%
Dec 31, 2011	43.15%	+133.0%
Dec 31, 2010	18.52%	-29.0%
Dec 31, 2009	26.07%	-66.7%
Dec 31, 2008	78.36%	+168.9%
Dec 31, 2007	29.14%	+3.6%

Date	Value	Change
Dec 31, 2006	28.13%	-48.5%
Dec 31, 2005	54.66%	+8.6%
Dec 31, 2004	50.32%	-58.1%
Dec 31, 2003	120.03%	-9.0%
Dec 31, 2002	131.87%	-19.5%
Dec 31, 2001	163.86%	+107.0%
Dec 31, 2000	79.17%	-29.3%
Dec 31, 1999	111.96%	+52.5%
Dec 31, 1998	73.44%	-18.3%
Dec 31, 1997	89.90%	+17.5%
Dec 31, 1996	76.48%	-3.7%
Dec 31, 1995	79.41%	+0.8%
Dec 31, 1994	78.81%	-1.1%
Dec 31, 1993	79.67%	+43.0%
Dec 31, 1992	55.73%	+4.9%
Dec 31, 1991	53.14%	-39.6%
Dec 31, 1990	88.02%	+73.7%
Dec 31, 1989	50.66%	-12.7%
Dec 31, 1988	58.01%	-27.1%
Dec 31, 1987	79.57%	-

FAQ

What is the current 3-month volatility of CLH?
As of today, CLH 3-month volatility is 24.48%
What 3-month volatility category does CLH fall into?
Based on its current 3-month historical volatility, CLH falls into the low volatility category
What is CLH 3-month volatility 1-year high?
CLH 3-month volatility reached a 1-year high of 35.26% on January 21, 2026
What is CLH 3-month volatility 1-year low?
CLH 3-month volatility reached a 1-year low of 13.79% on July 24, 2025

1-Year

27.45%

February 20, 2026

Summary

Current Value: As of today, CLH 1-year volatility is 27.45%, down -0.76% on February 20, 2026
Value Category: Based on its current 1-year historical volatility, CLH falls into the moderate volatility category
1-Year High: CLH 1-year volatility reached a 1-year high of 30.41% on April 22, 2025
1-Year Low: CLH 1-year volatility reached a 1-year low of 26.71% on November 14, 2025

Performance

CLH Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Feb 20, 26	27.45%	-0.8%	-0.1%	+1.6%	+2.3%	+1.3%	-18.7%	-62.6%
10-Day Volatility	Feb 20, 26	29.41%	+0.1%	-0.4%	+6.3%	+186.9%	+42.4%	+160.7%	+20.2%
1-Month Volatility	Feb 20, 26	21.69%	-11.2%	-17.1%	-51.9%	+8.4%	+4.6%	+50.7%	-21.7%
3-Month Volatility	Feb 20, 26	24.48%	-1.1%	-30.5%	-21.4%	-27.1%	+5.6%	-12.2%	-9.1%
1-Year Volatility	Feb 20, 26	27.45%	-0.8%	-0.1%	+1.6%	+2.3%	+1.3%	-18.7%	-62.6%
14-Day RSI	Feb 20, 26	71.55	+3.0%	+16.5%	+72.0%	+44.6%	+223.3%	+1.6%	+20.1%
Beta	Feb 20, 26	0.77	0.0%	+1.3%	+4.0%	+4.0%	-30.0%	-12.5%	-47.3%
ATR	Feb 20, 26	$7.62	+0.1%	+27.8%	+23.8%	+78.4%	+28.1%	+176.1%	+266.2%
Price	Feb 20, 26	$284.69	+1.2%	+11.1%	+36.1%	+21.4%	+34.2%	+111.3%	+236.1%
200-Day SMA	Feb 20, 26	$236.56	+0.1%	+2.9%	+5.8%	+4.4%	+0.4%	+115.1%	+262.2%
50-Day SMA	Feb 20, 26	$254.31	+0.4%	+9.0%	+12.4%	+12.0%	+8.2%	+107.3%	+220.7%

1-Year Volatility History

Date	Value	Change
Feb 20, 2026	27.45%	+2.3%
Dec 31, 2025	26.83%	-3.2%
Dec 31, 2024	27.72%	+9.1%
Dec 31, 2023	25.41%	-26.1%
Dec 31, 2022	34.39%	+23.2%
Dec 31, 2021	27.91%	-61.7%
Dec 31, 2020	72.79%	+168.6%
Dec 31, 2019	27.10%	-10.4%
Dec 31, 2018	30.23%	+48.0%
Dec 31, 2017	20.43%	-21.1%
Dec 31, 2016	25.90%	-11.1%
Dec 31, 2015	29.15%	+2.2%
Dec 31, 2014	28.51%	+12.6%
Dec 31, 2013	25.31%	-24.1%
Dec 31, 2012	33.34%	-12.8%
Dec 31, 2011	38.22%	+30.0%
Dec 31, 2010	29.39%	-23.1%
Dec 31, 2009	38.20%	-18.4%
Dec 31, 2008	46.84%	+67.8%
Dec 31, 2007	27.92%	-34.9%

Date	Value	Change
Dec 31, 2006	42.91%	-16.2%
Dec 31, 2005	51.23%	-6.4%
Dec 31, 2004	54.76%	-42.0%
Dec 31, 2003	94.34%	-21.5%
Dec 31, 2002	120.16%	+4.1%
Dec 31, 2001	115.40%	+10.1%
Dec 31, 2000	104.86%	+9.3%
Dec 31, 1999	95.94%	+11.4%
Dec 31, 1998	86.12%	-19.8%
Dec 31, 1997	107.43%	+9.7%
Dec 31, 1996	97.90%	+16.9%
Dec 31, 1995	83.74%	+21.8%
Dec 31, 1994	68.77%	-4.0%
Dec 31, 1993	71.65%	+16.4%
Dec 31, 1992	61.54%	+11.7%
Dec 31, 1991	55.09%	-35.8%
Dec 31, 1990	85.85%	+86.6%
Dec 31, 1989	46.00%	-11.0%
Dec 31, 1988	51.69%	-35.0%
Dec 31, 1987	79.57%	-

FAQ

What is the current 1-year volatility of CLH?
As of today, CLH 1-year volatility is 27.45%
What 1-year volatility category does CLH fall into?
Based on its current 1-year historical volatility, CLH falls into the moderate volatility category
What is CLH 1-year volatility 1-year high?
CLH 1-year volatility reached a 1-year high of 30.41% on April 22, 2025
What is CLH 1-year volatility 1-year low?
CLH 1-year volatility reached a 1-year low of 26.71% on November 14, 2025

Data Sources & References

CLH Official Website www.cleanharbors.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/822818/000082281826000009/0000822818-26-000009-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/822818/000082281826000009/0000822818-26-000009-index.htm
CLH Profile on Yahoo Finance finance.yahoo.com/quote/CLH
CLH Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/clh