What is the current annual D&A of FTNT?

As of today, FTNT annual D&A is $488.30M

What is 1-year change in FTNT annual D&A?

FTNT annual D&A is up +297.64% year-over-year

What is 3-year change in FTNT annual D&A?

FTNT annual D&A is up +368.17% over the past 3 years

How far is FTNT annual D&A from its all-time high?

FTNT annual D&A is currently at its all-time high

How does FTNT annual D&A rank versus sector peers?

FTNT annual D&A is higher than 91.49% of companies in Technology sector

When is FTNT next annual earnings release?

The next annual earnings release for FTNT is on February 4, 2027

What is the current quarterly D&A of FTNT?

As of today, FTNT quarterly D&A is $329.60M

What is FTNT quarterly D&A most recent change?

FTNT quarterly D&A was up +696.14% on September 30, 2026

What is 1-year change in FTNT quarterly D&A?

FTNT quarterly D&A is up +758.33% year-over-year

How far is FTNT quarterly D&A from its all-time high?

FTNT quarterly D&A is currently at its all-time high

How does FTNT quarterly D&A rank versus sector peers?

FTNT quarterly D&A is higher than 95.51% of companies in Technology sector

When is FTNT next earnings release?

The next earnings release for FTNT is on February 4, 2027

What is the current TTM D&A of FTNT?

As of today, FTNT TTM D&A is $450.30M

What is FTNT TTM D&A most recent change?

FTNT TTM D&A was up +183.03% on September 30, 2026

What is 1-year change in FTNT TTM D&A?

FTNT TTM D&A is up +204.87% year-over-year

How far is FTNT TTM D&A from its all-time high?

FTNT TTM D&A is currently at its all-time high

How does FTNT TTM D&A rank versus sector peers?

FTNT TTM D&A is higher than 89.58% of companies in Technology sector

When is FTNT next earnings release?

The next earnings release for FTNT is on February 4, 2027

Fortinet, Inc. (FTNT) Depreciation And Amortization History & Chart

Annual D&A

$488.30M$365.50M+297.64%

December 31, 2025

Summary

Current Value: As of today, FTNT annual D&A is $488.30M, up +297.64% on December 31, 2025
Historical Performance: FTNT annual D&A is up +368.17% over the past 3 years, up +609.74% over the past 5 years
All-Time High Comparison: FTNT annual D&A is currently at its all-time high
3-Year Low Comparison: FTNT annual D&A is +368.17% above its 3-year low of $104.30M reached on an earlier date
Sector Comparison: FTNT annual D&A is higher than 91.49% of companies in Technology sector

Depreciation & Amortization Chart

beforeafter

Performance

FTNT Performance
Metric	Date	Value	1Y	3Y	5Y	15Y
Annual D&A	Dec 31, 25	$488.30M	+297.6%	+368.2%	+609.7%	+8472.7%
Quarterly D&A	Sep 30, 26	$329.60M	+758.3%	+1064.7%	+1339.3%	+10000.0%
TTM D&A	Sep 30, 26	$450.30M	+204.9%	+307.5%	+494.1%	+6746.6%
Price	Oct 30, 26	$135.15	+60.5%	+140.0%	+100.9%	+2830.4%
Annual SG&A	Dec 31, 25	$2.58B	+13.1%	+39.1%	+116.6%	+1821.1%
Annual Total Expenses	Dec 31, 25	$4.95B	+17.5%	+38.9%	+134.9%	+1645.0%
Annual Operating Expenses	Dec 31, 25	$3.40B	+17.1%	+44.9%	+122.2%	+1744.4%
Annual Revenue	Dec 31, 25	$6.80B	+14.2%	+53.9%	+162.1%	+1994.1%

Depreciation & Amortization Highs

FTNT Annual D&A Highs Comparison
Period	High	Date	Current
3Y	$488.30M	Dec 31, 25	at high
5Y	$488.30M	Dec 31, 25	at high
All	$488.30M	Dec 31, 25	at high

Depreciation & Amortization Lows

FTNT Annual D&A Lows Comparison
Period	Low	Date	Current
3Y	$104.30M	N/A	+368.2%
5Y	$68.80M	N/A	+609.7%
All	$3.51M	Dec 31, 06	>+9999.0%

Depreciation & Amortization History

Year	Value	Change
2025	$488.30M	+297.6%
2024	$122.80M	+8.3%
2023	$113.40M	+8.7%
2022	$104.30M	+23.6%
2021	$84.40M	+22.7%
2020	$68.80M	+11.7%
2019	$61.60M	+10.6%
2018	$55.70M	+0.4%
2017	$55.48M	+14.3%
2016	$48.52M	+53.6%

Year	Value	Change
2015	$31.59M	+43.4%
2014	$22.03M	+41.0%
2013	$15.62M	+35.1%
2012	$11.56M	+65.5%
2011	$6.99M	+22.7%
2010	$5.70M	-4.0%
2009	$5.94M	+40.2%
2008	$4.23M	+2.0%
2007	$4.15M	+18.4%
2006	$3.51M	-

FAQ

What is the current annual D&A of FTNT?: As of today, FTNT annual D&A is $488.30M
What is 1-year change in FTNT annual D&A?: FTNT annual D&A is up +297.64% year-over-year
What is 3-year change in FTNT annual D&A?: FTNT annual D&A is up +368.17% over the past 3 years
How far is FTNT annual D&A from its all-time high?: FTNT annual D&A is currently at its all-time high
How does FTNT annual D&A rank versus sector peers?: FTNT annual D&A is higher than 91.49% of companies in Technology sector
When is FTNT next annual earnings release?: The next annual earnings release for FTNT is on February 4, 2027

Quarterly D&A

$329.60M$288.20M+696.14%

September 30, 2026

Summary

Current Value: As of today, FTNT quarterly D&A is $329.60M, up +696.14% on September 30, 2026
Historical Performance: FTNT quarterly D&A is up +758.33% year-over-year, up +1064.66% over the past 3 years
All-Time High Comparison: FTNT quarterly D&A is currently at its all-time high
3-Year Low Comparison: FTNT quarterly D&A is +1064.66% above its 3-year low of $28.30M reached on an earlier date
Sector Comparison: FTNT quarterly D&A is higher than 95.51% of companies in Technology sector

Performance

FTNT Performance
Metric	Date	Value	3M	1Y	3Y	5Y
Quarterly D&A	Sep 30, 26	$329.60M	+696.1%	+758.3%	+1064.7%	+1339.3%
Annual D&A	Dec 31, 25	$488.30M	–	+297.6%	+368.2%	+609.7%
TTM D&A	Sep 30, 26	$450.30M	+183.0%	+204.9%	+307.5%	+494.1%
Price	Oct 30, 26	$135.15	-12.4%	+60.5%	+140.0%	+100.9%
Quarterly SG&A	Sep 30, 26	$0.00	-100.0%	-100.0%	-100.0%	-100.0%
Quarterly Total Expenses	Sep 30, 26	$1.44B	+0.1%	+15.3%	+42.6%	+104.9%
Quarterly Operating Expenses	Sep 30, 26	$946.90M	-0.9%	+11.8%	+32.5%	+94.9%
Quarterly Revenue	Sep 30, 26	$2.08B	+1.5%	+20.5%	+55.7%	+139.7%

Quarterly D&A Highs

FTNT Quarterly D&A Highs Comparison
Period	High	Date	Current
1Y	$329.60M	Sep 30, 26	at high
3Y	$329.60M	Sep 30, 26	at high
5Y	$329.60M	Sep 30, 26	at high
All	$329.60M	Sep 30, 26	at high

Quarterly D&A Lows

FTNT Quarterly D&A Lows Comparison
Period	Low	Date	Current
1Y	$38.40M	N/A	+758.3%
3Y	$28.30M	N/A	+1064.7%
5Y	$22.90M	N/A	+1339.3%
All	$1.35M	Mar 31, 09	>+9999.0%

Quarterly D&A History

Month	Value	Change
Sep 2026	$329.60M	+696.1%
Jun 2026	$41.40M	+4.0%
Mar 2026	$39.80M	+0.8%
Dec 2025	$39.50M	+2.9%
Sep 2025	$38.40M	+0.3%
Jun 2025	$38.30M	+7.0%
Mar 2025	$35.80M	+1.7%
Dec 2024	$35.20M	+18.1%
Sep 2024	$29.80M	+2.1%
Jun 2024	$29.20M	+2.1%
Mar 2024	$28.60M	-5.3%
Dec 2023	$30.20M	+6.7%
Sep 2023	$28.30M	+3.3%
Jun 2023	$27.40M	-0.4%
Mar 2023	$27.50M	+0.7%
Dec 2022	$27.30M	+3.4%
Sep 2022	$26.40M	+5.2%
Jun 2022	$25.10M	-1.6%
Mar 2022	$25.50M	+0.8%
Dec 2021	$25.30M	+10.5%
Sep 2021	$22.90M	+21.2%
Jun 2021	$18.90M	+9.2%
Mar 2021	$17.30M	+3.6%
Dec 2020	$16.70M	0.0%
Sep 2020	$16.70M	-6.2%
Jun 2020	$17.80M	+1.1%
Mar 2020	$17.60M	+12.1%
Dec 2019	$15.70M	+4.7%
Sep 2019	$15.00M	-1.3%
Jun 2019	$15.20M	-3.2%
Mar 2019	$15.70M	+6.8%
Dec 2018	$14.70M	+3.5%
Sep 2018	$14.20M	+4.4%
Jun 2018	$13.60M	+3.0%
Mar 2018	$13.20M	-7.5%
Dec 2017	$14.27M	+4.0%

Month	Value	Change
Sep 2017	$13.72M	-2.0%
Jun 2017	$14.00M	+3.8%
Mar 2017	$13.49M	-1.0%
Dec 2016	$13.62M	+4.4%
Sep 2016	$13.06M	+15.6%
Jun 2016	$11.29M	+7.0%
Mar 2016	$10.55M	+12.4%
Dec 2015	$9.38M	+6.3%
Sep 2015	$8.82M	+25.5%
Jun 2015	$7.03M	+10.6%
Mar 2015	$6.35M	+15.3%
Dec 2014	$5.51M	-1.7%
Sep 2014	$5.61M	-13.7%
Jun 2014	$6.49M	+46.8%
Mar 2014	$4.42M	+7.5%
Dec 2013	$4.11M	-1.8%
Sep 2013	$4.19M	+10.6%
Jun 2013	$3.79M	+7.1%
Mar 2013	$3.54M	+1.4%
Dec 2012	$3.49M	+16.3%
Sep 2012	$3.00M	+0.1%
Jun 2012	$3.00M	+43.9%
Mar 2012	$2.08M	+11.0%
Dec 2011	$1.88M	+5.5%
Sep 2011	$1.78M	+7.2%
Jun 2011	$1.66M	-1.2%
Mar 2011	$1.68M	+14.7%
Dec 2010	$1.46M	+5.2%
Sep 2010	$1.39M	-5.2%
Jun 2010	$1.47M	+6.7%
Mar 2010	$1.38M	-14.8%
Dec 2009	$1.61M	+9.4%
Sep 2009	$1.48M	-1.3%
Jun 2009	$1.49M	+10.4%
Mar 2009	$1.35M	-

FAQ

What is the current quarterly D&A of FTNT?: As of today, FTNT quarterly D&A is $329.60M
What is FTNT quarterly D&A most recent change?: FTNT quarterly D&A was up +696.14% on September 30, 2026
What is 1-year change in FTNT quarterly D&A?: FTNT quarterly D&A is up +758.33% year-over-year
How far is FTNT quarterly D&A from its all-time high?: FTNT quarterly D&A is currently at its all-time high
How does FTNT quarterly D&A rank versus sector peers?: FTNT quarterly D&A is higher than 95.51% of companies in Technology sector
When is FTNT next earnings release?: The next earnings release for FTNT is on February 4, 2027

TTM D&A

$450.30M$291.20M+183.03%

September 30, 2026

Summary

Current Value: As of today, FTNT TTM D&A is $450.30M, up +183.03% on September 30, 2026
Historical Performance: FTNT TTM D&A is up +204.87% year-over-year, up +307.51% over the past 3 years
All-Time High Comparison: FTNT TTM D&A is currently at its all-time high
3-Year Low Comparison: FTNT TTM D&A is +307.51% above its 3-year low of $110.50M reached on an earlier date
Sector Comparison: FTNT TTM D&A is higher than 89.58% of companies in Technology sector

Performance

FTNT Performance
Metric	Date	Value	3M	1Y	3Y	5Y
TTM D&A	Sep 30, 26	$450.30M	+183.0%	+204.9%	+307.5%	+494.1%
Annual D&A	Dec 31, 25	$488.30M	–	+297.6%	+368.2%	+609.7%
Quarterly D&A	Sep 30, 26	$329.60M	+696.1%	+758.3%	+1064.7%	+1339.3%
Price	Oct 30, 26	$135.15	-12.4%	+60.5%	+140.0%	+100.9%
TTM SG&A	Sep 30, 26	-$1.29B	-146.8%	-152.0%	-159.8%	-191.7%
TTM Revenue	Sep 30, 26	$7.88B	+4.7%	+20.2%	+52.4%	+152.1%

TTM D&A Highs

FTNT TTM D&A Highs Comparison
Period	High	Date	Current
1Y	$450.30M	Sep 30, 26	at high
3Y	$450.30M	Sep 30, 26	at high
5Y	$450.30M	Sep 30, 26	at high
All	$450.30M	Sep 30, 26	at high

TTM D&A Lows

FTNT TTM D&A Lows Comparison
Period	Low	Date	Current
1Y	$147.70M	N/A	+204.9%
3Y	$110.50M	N/A	+307.5%
5Y	$75.80M	N/A	+494.1%
All	$1.35M	Mar 31, 09	>+9999.0%

TTM D&A History

Month	Value	Change
Sep 2026	$450.30M	+183.0%
Jun 2026	$159.10M	+2.0%
Mar 2026	$156.00M	+2.6%
Dec 2025	$152.00M	+2.9%
Sep 2025	$147.70M	+6.2%
Jun 2025	$139.10M	+7.0%
Mar 2025	$130.00M	+5.9%
Dec 2024	$122.80M	+4.2%
Sep 2024	$117.80M	+1.3%
Jun 2024	$116.30M	+1.6%
Mar 2024	$114.50M	+1.0%
Dec 2023	$113.40M	+2.6%
Sep 2023	$110.50M	+1.7%
Jun 2023	$108.60M	+2.2%
Mar 2023	$106.30M	+1.9%
Dec 2022	$104.30M	+2.0%
Sep 2022	$102.30M	+3.5%
Jun 2022	$98.80M	+6.7%
Mar 2022	$92.60M	+9.7%
Dec 2021	$84.40M	+11.3%
Sep 2021	$75.80M	+8.9%
Jun 2021	$69.60M	+1.6%
Mar 2021	$68.50M	-0.4%
Dec 2020	$68.80M	+1.5%
Sep 2020	$67.80M	+2.6%
Jun 2020	$66.10M	+4.1%
Mar 2020	$63.50M	+3.1%
Dec 2019	$61.60M	+1.7%
Sep 2019	$60.60M	+1.3%
Jun 2019	$59.80M	+2.7%
Mar 2019	$58.20M	+4.5%
Dec 2018	$55.70M	+0.8%
Sep 2018	$55.27M	+0.9%
Jun 2018	$54.78M	-0.7%
Mar 2018	$55.18M	-0.5%
Dec 2017	$55.48M	+1.2%

Month	Value	Change
Sep 2017	$54.83M	+1.2%
Jun 2017	$54.17M	+5.3%
Mar 2017	$51.46M	+6.1%
Dec 2016	$48.52M	+9.6%
Sep 2016	$44.28M	+10.6%
Jun 2016	$40.05M	+11.9%
Mar 2016	$35.79M	+13.3%
Dec 2015	$31.59M	+14.0%
Sep 2015	$27.72M	+13.1%
Jun 2015	$24.50M	+2.2%
Mar 2015	$23.96M	+8.8%
Dec 2014	$22.03M	+6.8%
Sep 2014	$20.63M	+7.4%
Jun 2014	$19.22M	+16.4%
Mar 2014	$16.51M	+5.7%
Dec 2013	$15.62M	+4.2%
Sep 2013	$15.00M	+8.6%
Jun 2013	$13.81M	+6.1%
Mar 2013	$13.02M	+12.6%
Dec 2012	$11.56M	+16.2%
Sep 2012	$9.95M	+14.0%
Jun 2012	$8.73M	+18.1%
Mar 2012	$7.39M	+5.8%
Dec 2011	$6.99M	+6.3%
Sep 2011	$6.58M	+6.3%
Jun 2011	$6.19M	+3.2%
Mar 2011	$6.00M	+5.3%
Dec 2010	$5.70M	-2.6%
Sep 2010	$5.85M	-1.4%
Jun 2010	$5.93M	-0.5%
Mar 2010	$5.96M	+0.4%
Dec 2009	$5.94M	+37.3%
Sep 2009	$4.32M	+51.8%
Jun 2009	$2.85M	+110.4%
Mar 2009	$1.35M	-

FAQ

What is the current TTM D&A of FTNT?: As of today, FTNT TTM D&A is $450.30M
What is FTNT TTM D&A most recent change?: FTNT TTM D&A was up +183.03% on September 30, 2026
What is 1-year change in FTNT TTM D&A?: FTNT TTM D&A is up +204.87% year-over-year
How far is FTNT TTM D&A from its all-time high?: FTNT TTM D&A is currently at its all-time high
How does FTNT TTM D&A rank versus sector peers?: FTNT TTM D&A is higher than 89.58% of companies in Technology sector
When is FTNT next earnings release?: The next earnings release for FTNT is on February 4, 2027

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