What is the current 10-day volatility of FTNT?

As of today, FTNT 10-day volatility is 48.33%

What 10-day volatility category does FTNT fall into?

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

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

FTNT 10-day volatility reached a 1-year high of 101.25% on May 12, 2026

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

FTNT 10-day volatility reached a 1-year low of 10.32% on October 28, 2025

What is the current 1-month volatility of FTNT?

As of today, FTNT 1-month volatility is 58.93%

What 1-month volatility category does FTNT fall into?

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

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

FTNT 1-month volatility reached a 1-year high of 78.77% on June 5, 2026

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

FTNT 1-month volatility reached a 1-year low of 19.85% on October 28, 2025

What is the current 3-month volatility of FTNT?

As of today, FTNT 3-month volatility is 45.39%

What 3-month volatility category does FTNT fall into?

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

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

FTNT 3-month volatility reached a 1-year high of 56.80% on June 18, 2026

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

FTNT 3-month volatility reached a 1-year low of 26.16% on December 3, 2025

What is the current 1-year volatility of FTNT?

As of today, FTNT 1-year volatility is 42.27%

What 1-year volatility category does FTNT fall into?

Based on its current 1-year historical volatility, FTNT falls into the high volatility category

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

FTNT 1-year volatility reached a 1-year high of 45.74% on July 9, 2026

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

FTNT 1-year volatility reached a 1-year low of 39.01% on April 9, 2026

Fortinet, Inc. (FTNT) Stock Volatility History & Chart

10-Day

48.33%

September 18, 2026

Summary

Current Value: As of today, FTNT 10-day volatility is 48.33%, up +4.29% on September 18, 2026
Value Category: Based on its current 10-day historical volatility, FTNT falls into the high volatility category
1-Year High: FTNT 10-day volatility reached a 1-year high of 101.25% on May 12, 2026
1-Year Low: FTNT 10-day volatility reached a 1-year low of 10.32% on October 28, 2025

10-Day Volatility Chart

Performance

FTNT Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
10-Day Volatility	Sep 18, 26	48.33%	+4.3%	+33.6%	+24.2%	+96.2%	+93.5%	+66.8%	+61.6%
1-Month Volatility	Sep 18, 26	58.93%	+2.3%	+66.2%	+27.6%	+112.5%	+100.4%	+117.7%	+95.6%
3-Month Volatility	Sep 18, 26	45.39%	+0.3%	+11.6%	-19.3%	+67.7%	-17.6%	-20.1%	+66.3%
1-Year Volatility	Sep 18, 26	42.27%	-0.1%	+6.2%	-6.7%	+2.0%	-0.9%	-5.3%	+30.3%
14-Day RSI	Sep 18, 26	58.00	-5.5%	+16.6%	-9.0%	+38.1%	+20.9%	+38.4%	+21.2%
Beta	Sep 18, 26	0.95	0.0%	-4.0%	-12.0%	-21.5%	-20.8%	-29.1%	-23.4%
ATR	Sep 18, 26	$7.11	-0.3%	+11.6%	+21.7%	+304.9%	+227.3%	+340.6%	+334.2%
Price	Sep 18, 26	$169.84	-1.6%	+7.5%	+17.4%	+113.9%	+109.7%	+181.0%	+183.6%
200-Day SMA	Sep 18, 26	$113.88	+0.4%	+8.3%	+26.7%	+24.7%	+16.8%	+82.0%	+170.2%
50-Day SMA	Sep 18, 26	$160.16	+0.1%	+3.1%	+40.4%	+94.3%	+81.8%	+139.5%	+174.4%
20-Day SMA	Sep 18, 26	$162.09	+0.6%	+2.2%	+14.7%	+98.0%	+105.1%	+165.4%	+163.1%

10-Day Volatility History

Date	Value	Change
Sep 18, 2026	48.33%	+96.2%
Dec 31, 2025	24.63%	-18.5%
Dec 31, 2024	30.22%	+8.8%
Dec 31, 2023	27.77%	+2.5%
Dec 31, 2022	27.08%	-25.1%
Dec 31, 2021	36.14%	-13.3%
Dec 31, 2020	41.69%	+123.4%
Dec 31, 2019	18.66%	-66.4%
Dec 31, 2018	55.47%	+173.4%

Date	Value	Change
Dec 31, 2017	20.29%	-24.1%
Dec 31, 2016	26.75%	+79.2%
Dec 31, 2015	14.93%	-36.8%
Dec 31, 2014	23.64%	+9.9%
Dec 31, 2013	21.52%	+83.1%
Dec 31, 2012	11.75%	-72.0%
Dec 31, 2011	41.93%	+54.0%
Dec 31, 2010	27.23%	-37.3%
Dec 31, 2009	43.45%	-

FAQ

What is the current 10-day volatility of FTNT?: As of today, FTNT 10-day volatility is 48.33%
What 10-day volatility category does FTNT fall into?: Based on its current 10-day historical volatility, FTNT falls into the high volatility category
What is FTNT 10-day volatility 1-year high?: FTNT 10-day volatility reached a 1-year high of 101.25% on May 12, 2026
What is FTNT 10-day volatility 1-year low?: FTNT 10-day volatility reached a 1-year low of 10.32% on October 28, 2025

1-Month

58.93%

September 18, 2026

Summary

Current Value: As of today, FTNT 1-month volatility is 58.93%, up +2.33% on September 18, 2026
Value Category: Based on its current 1-month historical volatility, FTNT falls into the high volatility category
1-Year High: FTNT 1-month volatility reached a 1-year high of 78.77% on June 5, 2026
1-Year Low: FTNT 1-month volatility reached a 1-year low of 19.85% on October 28, 2025

Performance

FTNT Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Month Volatility	Sep 18, 26	58.93%	+2.3%	+66.2%	+27.6%	+112.5%	+100.4%	+117.7%	+95.6%
10-Day Volatility	Sep 18, 26	48.33%	+4.3%	+33.6%	+24.2%	+96.2%	+93.5%	+66.8%	+61.6%
3-Month Volatility	Sep 18, 26	45.39%	+0.3%	+11.6%	-19.3%	+67.7%	-17.6%	-20.1%	+66.3%
1-Year Volatility	Sep 18, 26	42.27%	-0.1%	+6.2%	-6.7%	+2.0%	-0.9%	-5.3%	+30.3%
14-Day RSI	Sep 18, 26	58.00	-5.5%	+16.6%	-9.0%	+38.1%	+20.9%	+38.4%	+21.2%
Beta	Sep 18, 26	0.95	0.0%	-4.0%	-12.0%	-21.5%	-20.8%	-29.1%	-23.4%
ATR	Sep 18, 26	$7.11	-0.3%	+11.6%	+21.7%	+304.9%	+227.3%	+340.6%	+334.2%
Price	Sep 18, 26	$169.84	-1.6%	+7.5%	+17.4%	+113.9%	+109.7%	+181.0%	+183.6%
200-Day SMA	Sep 18, 26	$113.88	+0.4%	+8.3%	+26.7%	+24.7%	+16.8%	+82.0%	+170.2%
50-Day SMA	Sep 18, 26	$160.16	+0.1%	+3.1%	+40.4%	+94.3%	+81.8%	+139.5%	+174.4%
20-Day SMA	Sep 18, 26	$162.09	+0.6%	+2.2%	+14.7%	+98.0%	+105.1%	+165.4%	+163.1%

1-Month Volatility History

Date	Value	Change
Sep 18, 2026	57.94%	+112.5%
Dec 31, 2025	27.26%	+8.2%
Dec 31, 2024	25.20%	-4.6%
Dec 31, 2023	26.42%	-28.8%
Dec 31, 2022	37.13%	-41.9%
Dec 31, 2021	63.93%	+78.9%
Dec 31, 2020	35.73%	+118.9%
Dec 31, 2019	16.32%	-67.2%
Dec 31, 2018	49.80%	+193.5%

Date	Value	Change
Dec 31, 2017	16.97%	-43.8%
Dec 31, 2016	30.20%	-7.5%
Dec 31, 2015	32.66%	+63.3%
Dec 31, 2014	20.00%	-11.7%
Dec 31, 2013	22.66%	-21.8%
Dec 31, 2012	28.96%	-38.8%
Dec 31, 2011	47.29%	+63.9%
Dec 31, 2010	28.85%	-32.9%
Dec 31, 2009	42.97%	-

FAQ

What is the current 1-month volatility of FTNT?: As of today, FTNT 1-month volatility is 58.93%
What 1-month volatility category does FTNT fall into?: Based on its current 1-month historical volatility, FTNT falls into the high volatility category
What is FTNT 1-month volatility 1-year high?: FTNT 1-month volatility reached a 1-year high of 78.77% on June 5, 2026
What is FTNT 1-month volatility 1-year low?: FTNT 1-month volatility reached a 1-year low of 19.85% on October 28, 2025

3-Month

45.39%

September 18, 2026

Summary

Current Value: As of today, FTNT 3-month volatility is 45.39%, up +0.35% on September 18, 2026
Value Category: Based on its current 3-month historical volatility, FTNT falls into the high volatility category
1-Year High: FTNT 3-month volatility reached a 1-year high of 56.80% on June 18, 2026
1-Year Low: FTNT 3-month volatility reached a 1-year low of 26.16% on December 3, 2025

Performance

FTNT Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
3-Month Volatility	Sep 18, 26	45.39%	+0.3%	+11.6%	-19.3%	+67.7%	-17.6%	-20.1%	+66.3%
10-Day Volatility	Sep 18, 26	48.33%	+4.3%	+33.6%	+24.2%	+96.2%	+93.5%	+66.8%	+61.6%
1-Month Volatility	Sep 18, 26	58.93%	+2.3%	+66.2%	+27.6%	+112.5%	+100.4%	+117.7%	+95.6%
1-Year Volatility	Sep 18, 26	42.27%	-0.1%	+6.2%	-6.7%	+2.0%	-0.9%	-5.3%	+30.3%
14-Day RSI	Sep 18, 26	58.00	-5.5%	+16.6%	-9.0%	+38.1%	+20.9%	+38.4%	+21.2%
Beta	Sep 18, 26	0.95	0.0%	-4.0%	-12.0%	-21.5%	-20.8%	-29.1%	-23.4%
ATR	Sep 18, 26	$7.11	-0.3%	+11.6%	+21.7%	+304.9%	+227.3%	+340.6%	+334.2%
Price	Sep 18, 26	$169.84	-1.6%	+7.5%	+17.4%	+113.9%	+109.7%	+181.0%	+183.6%
200-Day SMA	Sep 18, 26	$113.88	+0.4%	+8.3%	+26.7%	+24.7%	+16.8%	+82.0%	+170.2%
50-Day SMA	Sep 18, 26	$160.16	+0.1%	+3.1%	+40.4%	+94.3%	+81.8%	+139.5%	+174.4%
20-Day SMA	Sep 18, 26	$162.09	+0.6%	+2.2%	+14.7%	+98.0%	+105.1%	+165.4%	+163.1%

3-Month Volatility History

Date	Value	Change
Sep 18, 2026	45.39%	+68.1%
Dec 31, 2025	27.00%	-21.5%
Dec 31, 2024	34.40%	-1.2%
Dec 31, 2023	34.83%	-32.4%
Dec 31, 2022	51.55%	+12.3%
Dec 31, 2021	45.91%	+21.3%
Dec 31, 2020	37.85%	+27.3%
Dec 31, 2019	29.73%	-42.0%
Dec 31, 2018	51.29%	+167.0%

Date	Value	Change
Dec 31, 2017	19.21%	-43.0%
Dec 31, 2016	33.69%	-31.1%
Dec 31, 2015	48.88%	+124.7%
Dec 31, 2014	21.75%	-45.4%
Dec 31, 2013	39.81%	-16.6%
Dec 31, 2012	47.71%	-20.9%
Dec 31, 2011	60.30%	+18.0%
Dec 31, 2010	51.12%	+34.2%
Dec 31, 2009	38.10%	-

FAQ

What is the current 3-month volatility of FTNT?: As of today, FTNT 3-month volatility is 45.39%
What 3-month volatility category does FTNT fall into?: Based on its current 3-month historical volatility, FTNT falls into the high volatility category
What is FTNT 3-month volatility 1-year high?: FTNT 3-month volatility reached a 1-year high of 56.80% on June 18, 2026
What is FTNT 3-month volatility 1-year low?: FTNT 3-month volatility reached a 1-year low of 26.16% on December 3, 2025

1-Year

42.27%

September 18, 2026

Summary

Current Value: As of today, FTNT 1-year volatility is 42.27%, down -0.07% on September 18, 2026
Value Category: Based on its current 1-year historical volatility, FTNT falls into the high volatility category
1-Year High: FTNT 1-year volatility reached a 1-year high of 45.74% on July 9, 2026
1-Year Low: FTNT 1-year volatility reached a 1-year low of 39.01% on April 9, 2026

Performance

FTNT Performance
Metric	Date	Value	1D	1M	3M	YTD	1Y	3Y	5Y
1-Year Volatility	Sep 18, 26	42.27%	-0.1%	+6.2%	-6.7%	+2.0%	-0.9%	-5.3%	+30.3%
10-Day Volatility	Sep 18, 26	48.33%	+4.3%	+33.6%	+24.2%	+96.2%	+93.5%	+66.8%	+61.6%
1-Month Volatility	Sep 18, 26	58.93%	+2.3%	+66.2%	+27.6%	+112.5%	+100.4%	+117.7%	+95.6%
3-Month Volatility	Sep 18, 26	45.39%	+0.3%	+11.6%	-19.3%	+67.7%	-17.6%	-20.1%	+66.3%
1-Year Volatility	Sep 18, 26	42.27%	-0.1%	+6.2%	-6.7%	+2.0%	-0.9%	-5.3%	+30.3%
14-Day RSI	Sep 18, 26	58.00	-5.5%	+16.6%	-9.0%	+38.1%	+20.9%	+38.4%	+21.2%
Beta	Sep 18, 26	0.95	0.0%	-4.0%	-12.0%	-21.5%	-20.8%	-29.1%	-23.4%
ATR	Sep 18, 26	$7.11	-0.3%	+11.6%	+21.7%	+304.9%	+227.3%	+340.6%	+334.2%
Price	Sep 18, 26	$169.84	-1.6%	+7.5%	+17.4%	+113.9%	+109.7%	+181.0%	+183.6%
200-Day SMA	Sep 18, 26	$113.88	+0.4%	+8.3%	+26.7%	+24.7%	+16.8%	+82.0%	+170.2%
50-Day SMA	Sep 18, 26	$160.16	+0.1%	+3.1%	+40.4%	+94.3%	+81.8%	+139.5%	+174.4%
20-Day SMA	Sep 18, 26	$162.09	+0.6%	+2.2%	+14.7%	+98.0%	+105.1%	+165.4%	+163.1%

1-Year Volatility History

Date	Value	Change
Sep 18, 2026	42.34%	+2.2%
Dec 31, 2025	41.42%	+6.2%
Dec 31, 2024	39.00%	-3.4%
Dec 31, 2023	40.37%	-25.8%
Dec 31, 2022	54.43%	+53.8%
Dec 31, 2021	35.40%	-35.5%
Dec 31, 2020	54.86%	+74.0%
Dec 31, 2019	31.52%	-14.5%
Dec 31, 2018	36.85%	+46.9%

Date	Value	Change
Dec 31, 2017	25.09%	-27.2%
Dec 31, 2016	34.46%	-8.7%
Dec 31, 2015	37.74%	+29.6%
Dec 31, 2014	29.13%	-29.6%
Dec 31, 2013	41.35%	-2.2%
Dec 31, 2012	42.28%	-29.2%
Dec 31, 2011	59.74%	+43.1%
Dec 31, 2010	41.76%	+9.6%
Dec 31, 2009	38.10%	-

FAQ

What is the current 1-year volatility of FTNT?: As of today, FTNT 1-year volatility is 42.27%
What 1-year volatility category does FTNT fall into?: Based on its current 1-year historical volatility, FTNT falls into the high volatility category
What is FTNT 1-year volatility 1-year high?: FTNT 1-year volatility reached a 1-year high of 45.74% on July 9, 2026
What is FTNT 1-year volatility 1-year low?: FTNT 1-year volatility reached a 1-year low of 39.01% on April 9, 2026

Data Sources & References

FTNT Official Website www.fortinet.com
Most Recent Annual Report (10-K) www.sec.gov/Archives/edgar/data/1262039/000126203926000003/0001262039-26-000003-index.htm
FTNT Profile on Yahoo Finance finance.yahoo.com/quote/FTNT
FTNT Profile on NASDAQ.com www.nasdaq.com/market-activity/stocks/ftnt