KLA Corp (KLAC) operating KPIs

KLACNasdaqOptical Instruments & LensesFiscal year ends June 30

Financials through Q1 FY2027, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 29, 2026Score 16/3021% above fair value

$157.91−9.52 (-5.69%)

Close on Oct 30, 2026Market cap $206.32BP/E 39.5Yield 0.51%

KLA research and development (R&D) expense (GAAP) ($M)

Quarterly figures from KLA's filings and investor materials

Quarterly Annual

Latest, Q4 FY26

399

Period ended Jun 30, 2026

Change on a year earlier

+13.0%

353 in Q4 FY25

History

68 quarters

Since Q1 FY10

Sources

Documents cited below

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

Period	Ended	Research and development (R&D) expense (GAAP) ($M)	Year on year	Source
Q4 FY26	Jun 30, 2026	399	+13.0%	KLA Form 10-K (period 2026-06-30, filed 2026-08-06) ↗
Q3 FY26	Mar 31, 2026	389	+15.0%	KLA Form 10-Q (period 2026-03-31, filed 2026-04-30) ↗
Q2 FY26	Dec 31, 2025	384	+10.9%	KLA Form 10-Q (period 2025-12-31, filed 2026-01-30) ↗
Q1 FY26	Sep 30, 2025	361	+11.6%	KLA Form 10-Q (period 2025-09-30, filed 2025-10-31) ↗
Q4 FY25	Jun 30, 2025	353	+8.3%	KLA Form 10-K (period 2025-06-30, filed 2025-08-08) ↗
Q3 FY25	Mar 31, 2025	338	+5.1%	KLA Form 10-Q (period 2025-03-31, filed 2025-05-01) ↗
Q2 FY25	Dec 31, 2024	346	+8.1%	KLA Form 10-Q (period 2024-12-31, filed 2025-01-31) ↗
Q1 FY25	Sep 30, 2024	323	+3.8%	KLA Form 10-Q (period 2024-09-30, filed 2024-10-31) ↗
Q4 FY24	Jun 30, 2024	326	+2.7%	KLA Form 10-K (period 2024-06-30, filed 2024-08-05) ↗
Q3 FY24	Mar 31, 2024	322	-2.0%	KLA Form 10-Q (period 2024-03-31, filed 2024-04-26) ↗
Q2 FY24	Dec 31, 2023	320	-3.7%	KLA Form 10-Q (period 2023-12-31, filed 2024-01-26) ↗
Q1 FY24	Sep 30, 2023	311	-2.3%	KLA Form 10-Q (period 2023-09-30, filed 2023-10-27) ↗
Q4 FY23	Jun 30, 2023	317	+6.8%	KLA Form 10-K (period 2023-06-30, filed 2023-08-04) ↗
Q3 FY23	Mar 31, 2023	328	+15.1%	KLA Form 10-Q (period 2023-03-31, filed 2023-04-28) ↗
Q2 FY23	Dec 31, 2022	333	+25.6%	KLA Form 10-Q (period 2022-12-31, filed 2023-01-27) ↗
Q1 FY23	Sep 30, 2022	319	+23.4%	KLA Form 10-Q (period 2022-09-30, filed 2022-10-28) ↗
Q4 FY22	Jun 30, 2022	297	+23.0%	KLA Form 10-K (period 2022-06-30, filed 2022-08-05) ↗
Q3 FY22	Mar 31, 2022	285	+19.3%	KLA Form 10-Q (period 2022-03-31, filed 2022-04-29) ↗
Q2 FY22	Dec 31, 2021	265	+15.7%	KLA Form 10-Q (period 2021-12-31, filed 2022-01-28) ↗
Q1 FY22	Sep 30, 2021	258	+17.9%	KLA Form 10-Q (period 2021-09-30, filed 2021-10-28) ↗
Q4 FY21	Jun 30, 2021	241	+11.2%	KLA Form 10-K (period 2021-06-30, filed 2021-08-06) ↗
Q3 FY21	Mar 31, 2021	239	+11.0%	KLA Form 10-Q (period 2021-03-31, filed 2021-04-30) ↗
Q2 FY21	Dec 31, 2020	229	+3.8%	KLA Form 10-Q (period 2020-12-31, filed 2021-02-04) ↗
Q1 FY21	Sep 30, 2020	219	+4.0%	KLA Form 10-Q (period 2020-09-30, filed 2020-10-30) ↗
Q4 FY20	Jun 30, 2020	217	+5.0%	KLA Form 10-K (period 2020-06-30, filed 2020-08-07) ↗
Q3 FY20	Mar 31, 2020	215	+16.5%	KLA Form 10-Q (period 2020-03-31, filed 2020-05-06) ↗
Q2 FY20	Dec 31, 2019	221	+33.1%	KLA Form 10-Q (period 2019-12-31, filed 2020-02-05) ↗
Q1 FY20	Sep 30, 2019	211	+37.2%	KLA Form 10-Q (period 2019-09-30, filed 2019-10-31) ↗
Q4 FY19	Jun 30, 2019	207	+36.1%	KLA Form 10-K (period 2019-06-30, filed 2019-08-16) ↗
Q3 FY19	Mar 31, 2019	185	+20.7%	KLA Form 10-Q (period 2019-03-31, filed 2019-05-08) ↗
Q2 FY19	Dec 31, 2018	166	+5.9%	KLA Form 10-Q (period 2018-12-31, filed 2019-01-29) ↗
Q1 FY19	Sep 30, 2018	154	+4.6%	KLA Form 10-Q (period 2018-09-30, filed 2018-10-31) ↗
Q4 FY18	Jun 30, 2018	152	+11.4%	KLA Form 10-K (period 2019-06-30, filed 2019-08-16) ↗
Q3 FY18	Mar 31, 2018	153	+17.7%	KLA Form 10-Q (period 2019-03-31, filed 2019-05-08) ↗
Q2 FY18	Dec 31, 2017	157	+19.7%	KLA Form 10-Q (period 2018-12-31, filed 2019-01-29) ↗
Q1 FY18	Sep 30, 2017	147	+13.5%	KLA Form 10-Q (period 2018-09-30, filed 2018-10-31) ↗
Q4 FY17	Jun 30, 2017	136	+7.0%	KLA Form 10-K (period 2019-06-30, filed 2019-08-16) ↗
Q3 FY17	Mar 31, 2017	130	+12.6%	KLA SEC 10-Q (filed 2017-04-28) ↗
Q2 FY17	Dec 31, 2016	131	+10.7%	KLA SEC 10-Q (filed 2017-01-27) ↗
Q1 FY17	Sep 30, 2016	129	+7.8%	KLA SEC 10-Q (filed 2016-10-20) ↗
Q4 FY16	Jun 30, 2016	128	-1.0%	KLA SEC 10-K (filed 2016-08-05) ↗
Q3 FY16	Mar 31, 2016	116	-7.2%	KLA SEC 10-Q (filed 2016-04-26) ↗
Q2 FY16	Dec 31, 2015	118	-11.5%	KLA SEC 10-Q (filed 2016-01-28) ↗
Q1 FY16	Sep 30, 2015	120	-16.5%	KLA SEC 10-Q (filed 2015-10-22) ↗
Q4 FY15	Jun 30, 2015	129	-6.9%	KLA SEC 10-K (filed 2015-08-07) ↗
Q3 FY15	Mar 31, 2015	125	-7.2%	KLA SEC 10-Q (filed 2015-04-24) ↗
Q2 FY15	Dec 31, 2014	134	-0.7%	KLA SEC 10-Q (filed 2015-01-23) ↗
Q1 FY15	Sep 30, 2014	144	+8.5%	KLA SEC 10-Q (filed 2014-10-24) ↗
Q4 FY14	Jun 30, 2014	138	+8.4%	KLA SEC 10-K (filed 2014-08-08) ↗
Q3 FY14	Mar 31, 2014	134	+13.0%	KLA SEC 10-Q (filed 2014-04-25) ↗
Q2 FY14	Dec 31, 2013	135	+10.7%	KLA SEC 10-Q (filed 2014-01-24) ↗
Q1 FY14	Sep 30, 2013	132	+10.5%	KLA SEC 10-Q (filed 2013-10-25) ↗
Q4 FY13	Jun 30, 2013	128	+7.6%	KLA SEC 10-K (filed 2013-08-08) ↗
Q3 FY13	Mar 31, 2013	119	+7.9%	KLA SEC 10-Q (filed 2013-04-26) ↗
Q2 FY13	Dec 31, 2012	122	+4.5%	KLA SEC 10-Q (filed 2013-01-25) ↗
Q1 FY13	Sep 30, 2012	120	+11.0%	KLA SEC 10-Q (filed 2012-10-26) ↗
Q4 FY12	Jun 30, 2012	119	+17.6%	KLA SEC 10-K (filed 2012-08-06) ↗
Q3 FY12	Mar 31, 2012	110	+15.2%	KLA SEC 10-Q (filed 2012-04-27) ↗
Q2 FY12	Dec 31, 2011	116	+22.7%	KLA SEC 10-Q (filed 2012-01-27) ↗
Q1 FY12	Sep 30, 2011	108	+13.8%	KLA SEC 10-Q (filed 2011-10-28) ↗
Q4 FY11	Jun 30, 2011	101	+21.1%	KLA SEC 10-K (filed 2011-08-05) ↗
Q3 FY11	Mar 31, 2011	95.6	+12.9%	KLA SEC 10-Q (filed 2011-04-29) ↗
Q2 FY11	Dec 31, 2010	94.9	+13.9%	KLA SEC 10-Q (filed 2011-01-28) ↗
Q1 FY11	Sep 30, 2010	94.7	+21.1%	KLA SEC 10-Q/A (filed 2010-11-24) ↗
Q4 FY10	Jun 30, 2010	83.3	–	KLA SEC 10-K (filed 2011-08-05) ↗
Q3 FY10	Mar 31, 2010	84.7	–	KLA SEC 10-Q (filed 2011-04-29) ↗
Q2 FY10	Dec 31, 2009	83.3	–	KLA SEC 10-Q (filed 2011-01-28) ↗
Q1 FY10	Sep 30, 2009	78.2	–	KLA SEC 10-Q/A (filed 2010-11-24) ↗

Cite this data

StockData. (2026). KLA Research and development (R&D) expense (GAAP) ($M), quarterly Q1 FY10–Q4 FY26 [Data set]. Compiled from KLA SEC filings and investor materials. https://stockdatahq.com/stocks/klac/kpis/fin-rd

See every metric in the KLA KPI table. Data updated Oct 25, 2026.