What is the current 10-day volatility of CPK?

As of today, CPK 10-day volatility is 14.25%

What 10-day volatility category does CPK fall into?

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

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

CPK 10-day volatility reached a 1-year high of 41.04% on May 19, 2025

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

CPK 10-day volatility reached a 1-year low of 7.89% on November 28, 2025

What is the current 1-month volatility of CPK?

As of today, CPK 1-month volatility is 16.23%

What 1-month volatility category does CPK fall into?

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

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

CPK 1-month volatility reached a 1-year high of 31.35% on June 1, 2025

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

CPK 1-month volatility reached a 1-year low of 12.33% on August 17, 2025

What is the current 3-month volatility of CPK?

As of today, CPK 3-month volatility is 18.54%

What 3-month volatility category does CPK fall into?

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

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

CPK 3-month volatility reached a 1-year high of 26.23% on June 26, 2025

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

CPK 3-month volatility reached a 1-year low of 15.79% on September 25, 2025

What is the current 1-year volatility of CPK?

As of today, CPK 1-year volatility is 20.17%

What 1-year volatility category does CPK fall into?

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

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

CPK 1-year volatility reached a 1-year high of 21.76% on June 26, 2025

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

CPK 1-year volatility reached a 1-year low of 19.92% on April 2, 2025

CPK Stock Volatility History & Chart Since 1980

10-Day

14.25%

January 9, 2026

Summary

Current Value: As of today, CPK 10-day volatility is 14.25%, down -6.74% on January 9, 2026
Value Category: Based on its current 10-day historical volatility, CPK falls into the very low volatility category
1-Year High: CPK 10-day volatility reached a 1-year high of 41.04% on May 19, 2025
1-Year Low: CPK 10-day volatility reached a 1-year low of 7.89% on November 28, 2025

10-Day Volatility Chart

Performance

CPK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Jan 9, 26	14.25%	-6.7%	-27.4%	+17.9%	-21.0%	-31.9%	-51.6%	-51.1%
1-Month Volatility	Jan 9, 26	16.23%	-1.5%	-10.4%	-4.9%	-14.8%	-29.2%	-32.5%	-46.6%
3-Month Volatility	Jan 9, 26	18.54%	+0.6%	-4.3%	+17.3%	+1.7%	-14.3%	-45.6%	-39.5%
1-Year Volatility	Jan 9, 26	20.17%	-0.4%	-2.9%	-3.5%	-1.1%	-5.5%	-27.8%	-60.8%
14-Day RSI	Jan 9, 26	37.96	-3.6%	+24.8%	-50.5%	+2.6%	-0.4%	-35.0%	-14.4%
Beta	Jan 9, 26	0.11	0.0%	-31.3%	-50.0%	0.0%	-81.4%	-75.0%	-89.7%
ATR	Jan 9, 26	$2.65	+0.5%	-14.3%	+5.5%	+10.4%	-0.8%	-17.3%	-11.3%
Price	Jan 9, 26	$122.90	-0.5%	-2.2%	-11.4%	-1.5%	+3.4%	+0.8%	+19.6%
200-Day SMA	Jan 9, 26	$127.18	-0.0%	-0.1%	+1.8%	-0.1%	+9.8%	+1.0%	+41.1%
50-Day SMA	Jan 9, 26	$129.87	-0.1%	-2.8%	+2.4%	-0.8%	+4.0%	+10.8%	+23.9%

10-Day Volatility History

Date	Value	Change
Jan 9, 2026	14.25%	-21.0%
Dec 31, 2025	18.03%	-34.8%
Dec 31, 2024	27.66%	-0.9%
Dec 31, 2023	27.91%	+40.7%
Dec 31, 2022	19.84%	+85.8%
Dec 31, 2021	10.68%	-62.6%
Dec 31, 2020	28.59%	+121.8%
Dec 31, 2019	12.89%	-66.5%
Dec 31, 2018	38.49%	+37.7%
Dec 31, 2017	27.96%	+7.3%
Dec 31, 2016	26.06%	-33.5%
Dec 31, 2015	39.16%	+18.2%
Dec 31, 2014	33.12%	+95.5%
Dec 31, 2013	16.94%	-41.2%
Dec 31, 2012	28.81%	-6.7%
Dec 31, 2011	30.87%	+136.9%
Dec 31, 2010	13.03%	+81.2%
Dec 31, 2009	7.19%	-83.1%
Dec 31, 2008	42.53%	+99.4%
Dec 31, 2007	21.33%	+136.5%
Dec 31, 2006	9.02%	-22.0%
Dec 31, 2005	11.57%	-13.5%
Dec 31, 2004	13.37%	-5.4%
Dec 31, 2003	14.14%	+38.2%

Date	Value	Change
Dec 31, 2002	10.23%	+6.6%
Dec 31, 2001	9.60%	-21.9%
Dec 31, 2000	12.29%	-30.7%
Dec 31, 1999	17.74%	+61.4%
Dec 31, 1998	10.99%	-49.3%
Dec 31, 1997	21.66%	+36.1%
Dec 31, 1996	15.92%	-9.8%
Dec 31, 1995	17.64%	+14.0%
Dec 31, 1994	15.48%	+2.6%
Dec 31, 1993	15.09%	-71.2%
Dec 31, 1992	52.34%	-48.8%
Dec 31, 1991	102.14%	+6.1%
Dec 31, 1990	96.28%	+41.8%
Dec 31, 1989	67.91%	+25.5%
Dec 31, 1988	54.12%	-30.5%
Dec 31, 1987	77.87%	+318.4%
Dec 31, 1986	18.61%	-29.5%
Dec 31, 1985	26.40%	+361.5%
Dec 31, 1984	5.72%	-28.3%
Dec 31, 1983	7.98%	-88.7%
Dec 31, 1982	70.64%	>+9,900.0%
Dec 31, 1981	0.00%	-100.0%
Dec 31, 1980	19.87%	-

FAQ

What is the current 10-day volatility of CPK?
As of today, CPK 10-day volatility is 14.25%
What 10-day volatility category does CPK fall into?
Based on its current 10-day historical volatility, CPK falls into the very low volatility category
What is CPK 10-day volatility 1-year high?
CPK 10-day volatility reached a 1-year high of 41.04% on May 19, 2025
What is CPK 10-day volatility 1-year low?
CPK 10-day volatility reached a 1-year low of 7.89% on November 28, 2025

1-Month

16.23%

January 9, 2026

Summary

Current Value: As of today, CPK 1-month volatility is 16.23%, down -1.52% on January 9, 2026
Value Category: Based on its current 1-month historical volatility, CPK falls into the low volatility category
1-Year High: CPK 1-month volatility reached a 1-year high of 31.35% on June 1, 2025
1-Year Low: CPK 1-month volatility reached a 1-year low of 12.33% on August 17, 2025

Performance

CPK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Jan 9, 26	16.23%	-1.5%	-10.4%	-4.9%	-14.8%	-29.2%	-32.5%	-46.6%
10-Day Volatility	Jan 9, 26	14.25%	-6.7%	-27.4%	+17.9%	-21.0%	-31.9%	-51.6%	-51.1%
3-Month Volatility	Jan 9, 26	18.54%	+0.6%	-4.3%	+17.3%	+1.7%	-14.3%	-45.6%	-39.5%
1-Year Volatility	Jan 9, 26	20.17%	-0.4%	-2.9%	-3.5%	-1.1%	-5.5%	-27.8%	-60.8%
14-Day RSI	Jan 9, 26	37.96	-3.6%	+24.8%	-50.5%	+2.6%	-0.4%	-35.0%	-14.4%
Beta	Jan 9, 26	0.11	0.0%	-31.3%	-50.0%	0.0%	-81.4%	-75.0%	-89.7%
ATR	Jan 9, 26	$2.65	+0.5%	-14.3%	+5.5%	+10.4%	-0.8%	-17.3%	-11.3%
Price	Jan 9, 26	$122.90	-0.5%	-2.2%	-11.4%	-1.5%	+3.4%	+0.8%	+19.6%
200-Day SMA	Jan 9, 26	$127.18	-0.0%	-0.1%	+1.8%	-0.1%	+9.8%	+1.0%	+41.1%
50-Day SMA	Jan 9, 26	$129.87	-0.1%	-2.8%	+2.4%	-0.8%	+4.0%	+10.8%	+23.9%

1-Month Volatility History

Date	Value	Change
Jan 9, 2026	16.52%	-13.1%
Dec 31, 2025	19.01%	-5.9%
Dec 31, 2024	20.20%	-32.4%
Dec 31, 2023	29.90%	+56.0%
Dec 31, 2022	19.17%	+9.2%
Dec 31, 2021	17.55%	-28.2%
Dec 31, 2020	24.45%	+70.3%
Dec 31, 2019	14.36%	-58.1%
Dec 31, 2018	34.27%	+46.6%
Dec 31, 2017	23.37%	-13.2%
Dec 31, 2016	26.93%	-15.0%
Dec 31, 2015	31.70%	+22.7%
Dec 31, 2014	25.84%	+56.8%
Dec 31, 2013	16.48%	-47.3%
Dec 31, 2012	31.29%	+21.7%
Dec 31, 2011	25.71%	+22.7%
Dec 31, 2010	20.95%	+73.0%
Dec 31, 2009	12.11%	-86.0%
Dec 31, 2008	86.41%	+205.9%
Dec 31, 2007	28.25%	+148.5%
Dec 31, 2006	11.37%	+13.8%
Dec 31, 2005	9.99%	-24.6%
Dec 31, 2004	13.25%	-26.7%
Dec 31, 2003	18.07%	+72.1%

Date	Value	Change
Dec 31, 2002	10.50%	-15.5%
Dec 31, 2001	12.43%	-7.7%
Dec 31, 2000	13.46%	-36.6%
Dec 31, 1999	21.24%	+27.9%
Dec 31, 1998	16.61%	-37.9%
Dec 31, 1997	26.74%	+31.1%
Dec 31, 1996	20.40%	+36.5%
Dec 31, 1995	14.95%	+18.9%
Dec 31, 1994	12.57%	-39.9%
Dec 31, 1993	20.92%	-56.8%
Dec 31, 1992	48.43%	-46.8%
Dec 31, 1991	91.06%	-10.6%
Dec 31, 1990	101.81%	+60.4%
Dec 31, 1989	63.46%	+42.4%
Dec 31, 1988	44.58%	-50.7%
Dec 31, 1987	90.48%	+115.7%
Dec 31, 1986	41.94%	+91.5%
Dec 31, 1985	21.90%	+18.0%
Dec 31, 1984	18.56%	+131.1%
Dec 31, 1983	8.03%	-87.6%
Dec 31, 1982	64.92%	>+9,900.0%
Dec 31, 1981	0.00%	-100.0%
Dec 31, 1980	21.42%	-

FAQ

What is the current 1-month volatility of CPK?
As of today, CPK 1-month volatility is 16.23%
What 1-month volatility category does CPK fall into?
Based on its current 1-month historical volatility, CPK falls into the low volatility category
What is CPK 1-month volatility 1-year high?
CPK 1-month volatility reached a 1-year high of 31.35% on June 1, 2025
What is CPK 1-month volatility 1-year low?
CPK 1-month volatility reached a 1-year low of 12.33% on August 17, 2025

3-Month

18.54%

January 9, 2026

Summary

Current Value: As of today, CPK 3-month volatility is 18.54%, up +0.60% on January 9, 2026
Value Category: Based on its current 3-month historical volatility, CPK falls into the low volatility category
1-Year High: CPK 3-month volatility reached a 1-year high of 26.23% on June 26, 2025
1-Year Low: CPK 3-month volatility reached a 1-year low of 15.79% on September 25, 2025

Performance

CPK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Jan 9, 26	18.54%	+0.6%	-4.3%	+17.3%	+1.7%	-14.3%	-45.6%	-39.5%
10-Day Volatility	Jan 9, 26	14.25%	-6.7%	-27.4%	+17.9%	-21.0%	-31.9%	-51.6%	-51.1%
1-Month Volatility	Jan 9, 26	16.23%	-1.5%	-10.4%	-4.9%	-14.8%	-29.2%	-32.5%	-46.6%
1-Year Volatility	Jan 9, 26	20.17%	-0.4%	-2.9%	-3.5%	-1.1%	-5.5%	-27.8%	-60.8%
14-Day RSI	Jan 9, 26	37.96	-3.6%	+24.8%	-50.5%	+2.6%	-0.4%	-35.0%	-14.4%
Beta	Jan 9, 26	0.11	0.0%	-31.3%	-50.0%	0.0%	-81.4%	-75.0%	-89.7%
ATR	Jan 9, 26	$2.65	+0.5%	-14.3%	+5.5%	+10.4%	-0.8%	-17.3%	-11.3%
Price	Jan 9, 26	$122.90	-0.5%	-2.2%	-11.4%	-1.5%	+3.4%	+0.8%	+19.6%
200-Day SMA	Jan 9, 26	$127.18	-0.0%	-0.1%	+1.8%	-0.1%	+9.8%	+1.0%	+41.1%
50-Day SMA	Jan 9, 26	$129.87	-0.1%	-2.8%	+2.4%	-0.8%	+4.0%	+10.8%	+23.9%

3-Month Volatility History

Date	Value	Change
Jan 9, 2026	18.43%	+1.9%
Dec 31, 2025	18.09%	-16.4%
Dec 31, 2024	21.63%	-29.4%
Dec 31, 2023	30.62%	-12.9%
Dec 31, 2022	35.16%	+62.8%
Dec 31, 2021	21.60%	-26.4%
Dec 31, 2020	29.36%	+85.5%
Dec 31, 2019	15.83%	-49.6%
Dec 31, 2018	31.43%	+61.9%
Dec 31, 2017	19.41%	-21.0%
Dec 31, 2016	24.58%	-13.0%
Dec 31, 2015	28.25%	+22.8%
Dec 31, 2014	23.01%	+16.9%
Dec 31, 2013	19.69%	-24.8%
Dec 31, 2012	26.17%	-9.4%
Dec 31, 2011	28.88%	+20.7%
Dec 31, 2010	23.92%	+23.7%
Dec 31, 2009	19.34%	-79.2%
Dec 31, 2008	93.17%	+297.1%
Dec 31, 2007	23.46%	+80.0%
Dec 31, 2006	13.03%	-27.6%
Dec 31, 2005	18.00%	+80.5%
Dec 31, 2004	9.97%	-44.1%
Dec 31, 2003	17.85%	-15.8%

Date	Value	Change
Dec 31, 2002	21.20%	+56.3%
Dec 31, 2001	13.56%	-21.3%
Dec 31, 2000	17.22%	-9.5%
Dec 31, 1999	19.03%	+25.4%
Dec 31, 1998	15.18%	-21.7%
Dec 31, 1997	19.38%	+4.6%
Dec 31, 1996	18.53%	+20.9%
Dec 31, 1995	15.33%	-24.1%
Dec 31, 1994	20.21%	-17.6%
Dec 31, 1993	24.52%	-41.2%
Dec 31, 1992	41.69%	-52.4%
Dec 31, 1991	87.52%	+12.8%
Dec 31, 1990	77.60%	+13.5%
Dec 31, 1989	68.39%	+39.9%
Dec 31, 1988	48.88%	-41.7%
Dec 31, 1987	83.79%	+70.2%
Dec 31, 1986	49.24%	+87.4%
Dec 31, 1985	26.28%	+6.5%
Dec 31, 1984	24.67%	+33.8%
Dec 31, 1983	18.44%	-60.5%
Dec 31, 1982	46.66%	+411.1%
Dec 31, 1981	9.13%	-34.8%
Dec 31, 1980	14.01%	-

FAQ

What is the current 3-month volatility of CPK?
As of today, CPK 3-month volatility is 18.54%
What 3-month volatility category does CPK fall into?
Based on its current 3-month historical volatility, CPK falls into the low volatility category
What is CPK 3-month volatility 1-year high?
CPK 3-month volatility reached a 1-year high of 26.23% on June 26, 2025
What is CPK 3-month volatility 1-year low?
CPK 3-month volatility reached a 1-year low of 15.79% on September 25, 2025

1-Year

20.17%

January 9, 2026

Summary

Current Value: As of today, CPK 1-year volatility is 20.17%, down -0.44% on January 9, 2026
Value Category: Based on its current 1-year historical volatility, CPK falls into the low volatility category
1-Year High: CPK 1-year volatility reached a 1-year high of 21.76% on June 26, 2025
1-Year Low: CPK 1-year volatility reached a 1-year low of 19.92% on April 2, 2025

Performance

CPK Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Jan 9, 26	20.17%	-0.4%	-2.9%	-3.5%	-1.1%	-5.5%	-27.8%	-60.8%
10-Day Volatility	Jan 9, 26	14.25%	-6.7%	-27.4%	+17.9%	-21.0%	-31.9%	-51.6%	-51.1%
1-Month Volatility	Jan 9, 26	16.23%	-1.5%	-10.4%	-4.9%	-14.8%	-29.2%	-32.5%	-46.6%
3-Month Volatility	Jan 9, 26	18.54%	+0.6%	-4.3%	+17.3%	+1.7%	-14.3%	-45.6%	-39.5%
1-Year Volatility	Jan 9, 26	20.17%	-0.4%	-2.9%	-3.5%	-1.1%	-5.5%	-27.8%	-60.8%
14-Day RSI	Jan 9, 26	37.96	-3.6%	+24.8%	-50.5%	+2.6%	-0.4%	-35.0%	-14.4%
Beta	Jan 9, 26	0.11	0.0%	-31.3%	-50.0%	0.0%	-81.4%	-75.0%	-89.7%
ATR	Jan 9, 26	$2.65	+0.5%	-14.3%	+5.5%	+10.4%	-0.8%	-17.3%	-11.3%
Price	Jan 9, 26	$122.90	-0.5%	-2.2%	-11.4%	-1.5%	+3.4%	+0.8%	+19.6%
200-Day SMA	Jan 9, 26	$127.18	-0.0%	-0.1%	+1.8%	-0.1%	+9.8%	+1.0%	+41.1%
50-Day SMA	Jan 9, 26	$129.87	-0.1%	-2.8%	+2.4%	-0.8%	+4.0%	+10.8%	+23.9%

1-Year Volatility History

Date	Value	Change
Jan 9, 2026	20.23%	-0.8%
Dec 31, 2025	20.40%	-4.3%
Dec 31, 2024	21.31%	-8.9%
Dec 31, 2023	23.40%	-15.3%
Dec 31, 2022	27.62%	+28.8%
Dec 31, 2021	21.45%	-58.1%
Dec 31, 2020	51.16%	+183.3%
Dec 31, 2019	18.06%	-27.7%
Dec 31, 2018	24.98%	+38.9%
Dec 31, 2017	17.98%	-34.5%
Dec 31, 2016	27.44%	-5.2%
Dec 31, 2015	28.95%	+45.6%
Dec 31, 2014	19.89%	-1.3%
Dec 31, 2013	20.16%	+1.3%
Dec 31, 2012	19.90%	-25.0%
Dec 31, 2011	26.52%	+7.8%
Dec 31, 2010	24.60%	-37.4%
Dec 31, 2009	39.31%	-28.9%
Dec 31, 2008	55.27%	+96.1%
Dec 31, 2007	28.19%	+61.6%
Dec 31, 2006	17.44%	-15.8%
Dec 31, 2005	20.71%	+17.9%
Dec 31, 2004	17.57%	-5.3%
Dec 31, 2003	18.55%	+1.9%

Date	Value	Change
Dec 31, 2002	18.21%	+30.6%
Dec 31, 2001	13.94%	-28.5%
Dec 31, 2000	19.49%	+2.3%
Dec 31, 1999	19.05%	+3.2%
Dec 31, 1998	18.46%	+21.3%
Dec 31, 1997	15.22%	-17.2%
Dec 31, 1996	18.38%	-4.8%
Dec 31, 1995	19.30%	-5.8%
Dec 31, 1994	20.48%	-8.6%
Dec 31, 1993	22.41%	-71.0%
Dec 31, 1992	77.21%	-8.8%
Dec 31, 1991	84.64%	-5.3%
Dec 31, 1990	89.37%	+46.1%
Dec 31, 1989	61.15%	+49.6%
Dec 31, 1988	40.87%	-21.3%
Dec 31, 1987	51.96%	+46.2%
Dec 31, 1986	35.53%	+52.6%
Dec 31, 1985	23.28%	+59.0%
Dec 31, 1984	14.64%	-7.8%
Dec 31, 1983	15.88%	-42.9%
Dec 31, 1982	27.81%	+40.1%
Dec 31, 1981	19.85%	+37.5%
Dec 31, 1980	14.44%	-

FAQ

What is the current 1-year volatility of CPK?
As of today, CPK 1-year volatility is 20.17%
What 1-year volatility category does CPK fall into?
Based on its current 1-year historical volatility, CPK falls into the low volatility category
What is CPK 1-year volatility 1-year high?
CPK 1-year volatility reached a 1-year high of 21.76% on June 26, 2025
What is CPK 1-year volatility 1-year low?
CPK 1-year volatility reached a 1-year low of 19.92% on April 2, 2025

Data Sources & References

CPK Official Website www.chpk.com
Most Recent Quarterly Report (10-Q) www.sec.gov/Archives/edgar/data/19745/000162828025050291/0001628280-25-050291-index.htm
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/19745/000162828025008213/0001628280-25-008213-index.htm
CPK Profile on Yahoo Finance finance.yahoo.com/quote/CPK
CPK Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/cpk