KLA Corporation
MX ˙ BMV ˙ US4824801009
SecurityMX:KLAC / KLA Corporation
InstitutionHsbc Holdings Plc
Latest Disclosed Ownership363,768 shares
Latest Disclosed Value $ 534,565,161
Hsbc Holdings Plc ownership in KLAC / KLA Corporation

On April 30, 2026 - Hsbc Holdings Plc filed a 13F-HR form disclosing ownership of 363,768 shares of KLA Corporation (MX:KLAC) valued at $534,565,161 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on March 20, 2026 disclosing 388,594 shares of KLA Corporation. This represents a change in shares of -6.39% during the quarter.

Hsbc Holdings Plc has a history of taking positions in derivatives of the underlying security (KLAC) in the form of stock options. The firm currently holds call options representing 8,900 of underlying shares valued at $13,020,173 USD and put options representing 17,900 of underlying shares valued at $25,937,100 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:KLAC / KLA Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-30 2026-03-31 13F KLA COM NEW 482480100 363,768 -24,826 -6.39 534,565 13.00 0.0372
2026-03-20 2025-12-31 13F/A-1 KLA COM NEW 482480100 388,594 108,622 38.80 473,054 57.57 0.0258
2026-03-06 2025-12-31 13F KLA COM NEW 482480100 388,594 108,622 38.80 473,054 57.57 0.0217
2025-11-13 2025-09-30 13F KLA COM NEW 482480100 279,972 -46,215 -14.17 300,219 2.73 0.1656
2025-08-13 2025-06-30 13F KLA COM NEW 482480100 326,187 -28,205 -7.96 292,235 21.95 0.1755
2025-05-14 2025-03-31 13F KLA COM NEW 482480100 354,392 -130,359 -26.89 239,642 -21.66 0.1481
2025-02-14 2024-12-31 13F KLA COM NEW 482480100 484,751 99,337 25.77 305,888 2.67 0.1779
2024-11-14 2024-09-30 13F KLA COM NEW 482480100 385,414 -101,782 -20.89 297,921 -25.92 0.1734
2024-08-12 2024-06-30 13F KLA COM NEW 482480100 487,196 84,737 21.05 402,156 43.10 0.2459
2024-05-15 2024-03-31 13F KLA COM NEW 482480100 402,459 53,799 15.43 281,035 38.62 0.1902
2024-02-12 2023-12-31 13F KLA COM NEW 482480100 348,660 17,661 5.34 202,731 33.44 0.1768
2023-11-13 2023-09-30 13F KLA COM NEW 482480100 330,999 -55,096 -14.27 151,930 -18.95 0.1581
2023-08-11 2023-06-30 13F KLA COM NEW 482480100 386,095 127,241 49.16 187,447 81.52 0.1908
2023-05-15 2023-03-31 13F KLA COM NEW 482480100 258,854 -46,307 -15.17 103,266 -9.98 0.1237
2023-02-14 2022-12-31 13F KLA COM NEW 482480100 305,161 76,498 33.45 114,713 64.32 0.1319
2022-11-14 2022-09-30 13F KLA COM NEW 482480100 228,663 -8,662 -3.65 69,810 -8.09 0.1138
2022-08-11 2022-06-30 13F KLA COM NEW 482480100 237,325 -6,656 -2.73 75,956 -15.42 0.1061
2022-05-16 2022-03-31 13F KLA COM NEW 482480100 243,981 3,486 1.45 89,809 -13.05 0.1092
2022-02-11 2021-12-31 13F KLA COM NEW 482480100 240,495 -29,398 -10.89 103,287 14.21 0.0953
2021-11-12 2021-09-30 13F KLA COM NEW 482480100 269,893 -55,822 -17.14 90,434 -14.31 0.0911
2021-08-13 2021-06-30 13F KLA COM NEW 482480100 325,715 41,351 14.54 105,541 13.22 0.1125
2021-05-14 2021-03-31 13F KLA COM NEW 482480100 284,364 -56,726 -16.63 93,219 5.51 0.1097
2021-02-25 2020-12-31 13F/A-1 KLA COM NEW 482480100 341,090 16,552 5.10 88,353 40.29 0.1177
2021-02-12 2020-12-31 13F KLA COM NEW 482480100 365,290 40,752 94,591 22,459.3803
2020-11-12 2020-09-30 13F KLA COM NEW 482480100 324,538 25,522 8.54 62,978 8.30 0.1005
2020-08-14 2020-06-30 13F KLA COM NEW 482480100 299,016 -26,863 -8.24 58,151 23.16 0.1104
2020-05-15 2020-03-31 13F KLA COM NEW 482480100 325,879 -17,111 -4.99 47,214 -22.51 0.1097
2020-02-14 2019-12-31 13F KLA COM NEW 482480100 342,990 -35,884 -9.47 60,928 0.85 0.1059
2019-11-14 2019-09-30 13F KLA COM NEW 482480100 378,874 -12,870 -3.29 60,413 30.47 0.1127
2019-08-13 2019-06-30 13F KLA-TENCOR COM 482480100 391,744 -6,300 -1.58 46,303 -2.58 0.0879
2019-05-15 2019-03-31 13F KLA-TENCOR COM 482480100 398,044 -13,791 -3.35 47,529 29.04 0.0867
2019-02-13 2018-12-31 13F KLA-TENCOR COM 482480100 411,835 18,592 4.73 36,834 -7.90 0.0681
2018-11-13 2018-09-30 13F KLA-TENCOR COM 482480100 393,243 -132,993 -25.27 39,992 -25.88 0.0643
2018-08-10 2018-06-30 13F KLA-TENCOR COM 482480100 526,236 -304,202 -36.63 53,955 -40.39 0.0960
2018-05-11 2018-03-31 13F KLA-TENCOR COM 482480100 830,438 -120,788 -12.70 90,516 -9.43 0.1348
2018-02-14 2017-12-31 13F KLA-TENCOR COM 482480100 951,226 -156,812 -14.15 99,945 -14.91 0.1447
2017-11-14 2017-09-30 13F KLA-TENCOR COM 482480100 1,108,038 161,641 17.08 117,452 35.62 0.1882
2017-08-14 2017-06-30 13F KLA-TENCOR COM 482480100 946,397 138,385 17.13 86,605 12.69 0.1592
2017-05-15 2017-03-31 13F KLA-TENCOR COM 482480100 808,012 -153,956 -16.00 76,855 1.54 0.1607
2017-02-09 2016-12-31 13F KLA-TENCOR COM 482480100 961,968 214,658 28.72 75,688 45.37 0.1765
2016-11-14 2016-09-30 13F KLA-TENCOR COM 482480100 747,310 106,865 16.69 52,066 11.07 0.1296
2016-08-12 2016-06-30 13F KLA-TENCOR COM 482480100 640,445 257,188 67.11 46,878 68.03 0.1289
2016-05-13 2016-03-31 13F KLA-TENCOR COM 482480100 383,257 -8,644 -2.21 27,899 2.62 0.0786
2016-02-12 2015-12-31 13F KLA-TENCOR COM 482480100 391,901 -20,985 -5.08 27,188 32.01 0.0655
2015-11-12 2015-09-30 13F KLA-TENCOR COM 482480100 412,886 -134,613 -24.59 20,596 -33.05 0.0519
2015-08-13 2015-06-30 13F KLA-TENCOR COM 482480100 547,499 4,843 0.89 30,764 -2.84 0.0628
2015-05-14 2015-03-31 13F KLA-TENCOR COM 482480100 542,656 -10,375 -1.88 31,663 -18.75 0.0608
2015-02-13 2014-12-31 13F KLA-TENCOR COM 482480100 553,031 33,508 6.45 38,971 -4.90 0.0809
2014-11-18 2014-09-30 13F KLA-TENCOR COM 482480100 519,523 8,463 1.66 40,980 10.61 0.0858
2014-08-14 2014-06-30 13F KLA-TENCOR COM 482480100 511,060 -154,877 -23.26 37,049 -19.51 0.0801
2014-05-14 2014-03-31 13F KLA-TENCOR COM 482480100 665,937 71,815 12.09 46,032 20.35 0.1100
2014-02-14 2013-12-31 13F KLA-TENCOR COM 482480100 594,122 -9,330 -1.55 38,250 4.19 0.0996
2013-11-14 2013-09-30 13F KLA-TENCOR COM 482480100 603,452 601,252 27,329.64 36,711 29,746.34 0.1004
2013-10-10 2013-06-30 13F/A-1 KLA-TENCOR COM 482480100 776,414 774,214 43,256 0.1310
2013-12-23 2013-06-30 13F/A-2 KLA-TENCOR COM 482480100 2,200 0 0.00 123 6.03 0.0709
2013-08-14 2013-06-30 13F KLA-TENCOR COM 482480100 776,414 43,256
2013-10-10 2013-03-31 13F/A-1 KLA-TENCOR COM 482480100 649,470 647,270 34,252 0.1247
2013-12-23 2013-03-31 13F/A-2 KLA-TENCOR COM 482480100 2,200 0 0.00 116 10.48 0.1105
2013-05-22 2013-03-31 13F KLA-TENCOR COM 482480100 649,986 34,279
2013-06-17 2012-12-31 13F/A-1 KLA-TENCOR COM 482480100 590,628 -12,282 28,208 0.1086
2013-10-10 2012-12-31 13F/A-2 KLA-TENCOR COM 482480100 590,628 0 28,208 0.1095
2013-12-23 2012-12-31 13F/A-3 KLA-TENCOR COM 482480100 2,200 -600,710 -99.64 105 -99.63 0.1092
2013-06-21 2012-09-30 13F/A-1 KLA-TENCOR COM 482480100 602,910 36,166 28,760 0.1127
2013-10-11 2012-09-30 13F/A-2 KLA-TENCOR COM 482480100 602,910 36,166 6.38 28,760 3.18 0.1136
2013-10-11 2012-06-30 13F/A-1 KLA-TENCOR COM 482480100 566,744 234,657 70.66 27,874 54.26 0.1264
2013-10-11 2012-03-31 13F/A-1 KLA-TENCOR COM 482480100 332,087 332,087 18,070 0.0793
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-04-30 2026-03-31 13F KLA COM NEW Call 8,900 -62.45 13,020 -55.12 n/a n/a n/a
2026-03-20 2025-12-31 13F/A KLA COM NEW Call 23,700 2.16 29,009 17.39 n/a n/a n/a
2026-03-06 2025-12-31 13F KLA COM NEW Call 0 -100.00 0 n/a n/a n/a
2025-11-13 2025-09-30 13F KLA COM NEW Call 23,200 -1.28 24,713 17.40 n/a n/a n/a
2025-08-13 2025-06-30 13F KLA COM NEW Call 23,500 35.84 21,051 79.84 n/a n/a n/a
2025-05-14 2025-03-31 13F KLA COM NEW Call 17,300 57.27 11,705 68.88 n/a n/a n/a
2025-02-14 2024-12-31 13F KLA COM NEW Call 11,000 -24.66 6,931 -38.68 n/a n/a n/a
2024-11-14 2024-09-30 13F KLA COM NEW Call 14,600 0.00 11,304 -5.06 n/a n/a n/a
2024-08-12 2024-06-30 13F KLA COM NEW Call 14,600 -3.31 11,906 12.86 n/a n/a n/a
2024-05-15 2024-03-31 13F KLA COM NEW Call 15,100 -5.62 10,548 13.39 n/a n/a n/a
2024-02-12 2023-12-31 13F KLA COM NEW Call 16,000 -8.05 9,302 16.68 n/a n/a n/a
2023-11-13 2023-09-30 13F KLA COM NEW Call 17,400 47.46 7,972 41.27 n/a n/a n/a
2023-08-11 2023-06-30 13F KLA COM NEW Call 11,800 -57.86 5,643 -49.00 n/a n/a n/a
2023-05-15 2023-03-31 13F KLA COM NEW Call 28,000 180.00 11,065 196.17 n/a n/a n/a
2023-02-14 2022-12-31 13F KLA COM NEW Call 10,000 78.57 3,737 118.86 n/a n/a n/a
2022-11-14 2022-09-30 13F KLA COM NEW Call 5,600 21.74 1,707 14.87 n/a n/a n/a
2022-08-11 2022-06-30 13F KLA COM NEW Call 4,600 666.67 1,486 575.45 n/a n/a n/a
2022-05-16 2022-03-31 13F KLA COM NEW Call 600 -80.00 220 -82.95 n/a n/a n/a
2022-02-11 2021-12-31 13F KLA COM NEW Call 3,000 25.00 1,290 60.65 n/a n/a n/a
2021-11-12 2021-09-30 13F KLA COM NEW Call 2,400 14.29 803 17.91 n/a n/a n/a
2021-08-13 2021-06-30 13F KLA COM NEW Call 2,100 16.67 681 14.45 n/a n/a n/a
2021-05-14 2021-03-31 13F KLA COM NEW Call 1,800 -92.56 595 -90.46 n/a n/a n/a
2021-02-25 2020-12-31 13F/A KLA COM NEW Call 24,200 0.00 6,238 31.83 n/a n/a n/a
2020-11-12 2020-09-30 13F KLA COM NEW Call 24,200 -1.63 4,732 -1.09 n/a n/a n/a
2020-08-14 2020-06-30 13F KLA COM NEW Call 24,600 5.13 4,784 38.15 n/a n/a n/a
2020-05-15 2020-03-31 13F KLA COM NEW Call 23,400 3,463 n/a n/a n/a
2018-08-10 2018-06-30 13F KLA-TENCOR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-11 2018-03-31 13F KLA-TENCOR COM Call 10,700 1,166 n/a n/a n/a
2018-02-14 2017-12-31 13F KLA-TENCOR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-11-14 2017-09-30 13F KLA-TENCOR COM Call 400 0.00 42 13.51 n/a n/a n/a
2017-08-14 2017-06-30 13F KLA-TENCOR COM Call 400 -98.95 37 -98.98 n/a n/a n/a
2017-05-15 2017-03-31 13F KLA-TENCOR COM Call 38,000 3,613 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-04-30 2026-03-31 13F KLA COM NEW Put 17,900 -47.35 25,937 -37.81 n/a n/a n/a
2026-03-20 2025-12-31 13F/A KLA COM NEW Put 34,000 2.41 41,706 18.55 n/a n/a n/a
2026-03-06 2025-12-31 13F KLA COM NEW Put 0 -100.00 0 n/a n/a n/a
2025-11-13 2025-09-30 13F KLA COM NEW Put 33,200 41.28 35,180 66.98 n/a n/a n/a
2025-08-13 2025-06-30 13F KLA COM NEW Put 23,500 144.79 21,069 229.70 n/a n/a n/a
2025-05-14 2025-03-31 13F KLA COM NEW Put 9,600 9,500.00 6,390 10,042.86 n/a n/a n/a
2025-02-14 2024-12-31 13F KLA COM NEW Put 100 -90.00 63 -91.82 n/a n/a n/a
2024-11-14 2024-09-30 13F KLA COM NEW Put 1,000 -37.50 770 -41.93 n/a n/a n/a
2024-08-12 2024-06-30 13F KLA COM NEW Put 1,600 220.00 1,327 279.94 n/a n/a n/a
2024-05-15 2024-03-31 13F KLA COM NEW Put 500 349 n/a n/a n/a
2024-02-12 2023-12-31 13F KLA COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-13 2023-09-30 13F KLA COM NEW Put 2,200 -8.33 1,012 -13.37 n/a n/a n/a
2023-08-11 2023-06-30 13F KLA COM NEW Put 2,400 1,167 n/a n/a n/a
2023-05-15 2023-03-31 13F KLA COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F KLA COM NEW Put 4,400 1,636 n/a n/a n/a
2022-02-11 2021-12-31 13F KLA COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2021-09-30 13F KLA COM NEW Put 2,600 879 n/a n/a n/a
2021-02-25 2020-12-31 13F/A KLA COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-12 2020-09-30 13F KLA COM NEW Put 1,200 232 n/a n/a n/a
2020-08-14 2020-06-30 13F KLA COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F KLA COM NEW Put 17,100 2,530 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.