ON Semiconductor Corporation
US ˙ NasdaqGS ˙ US6821891057

SecurityON / ON Semiconductor Corporation
InstitutionCapital Fund Management S.a.
Latest Disclosed Ownership418,209 shares
Latest Disclosed Value $ 25,895,501
Capital Fund Management S.a. ownership in ON / ON Semiconductor Corporation

On May 14, 2026 - Capital Fund Management S.a. filed a 13F-HR form disclosing ownership of 418,209 shares of ON Semiconductor Corporation (US:ON) valued at $25,895,501 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 542,881 shares of ON Semiconductor Corporation. This represents a change in shares of -22.96% during the quarter. The current value of the position is $49,039,187 USD.

Capital Fund Management S.a. has a history of taking positions in derivatives of the underlying security (ON) in the form of stock options. The firm currently holds call options representing 36,500 of underlying shares valued at $2,260,080 USD and put options representing 108,600 of underlying shares valued at $6,724,512 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.

ON / ON Semiconductor 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)
2026-05-14 2026-03-31 13F ON SEMICONDUCTOR CORP COM ON SEMICONDUCTOR CORP COM 682189105 418,209 -124,672 -22.96 25,896 -11.91 0.1170
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR CORP COM ON SEMICONDUCTOR CORP COM 682189105 542,881 440,573 430.63 29,397 482.81 0.0817
2025-11-13 2025-09-30 13F ON SEMICONDUCTOR COM 682189105 102,308 -197,839 -65.91 5,045 -67.93 0.0132
2025-08-13 2025-06-30 13F ON SEMICONDUCTOR COM 682189105 300,147 300,147 15,731 0.0433
2022-08-12 2022-06-30 13F ON SEMICONDUCTOR COM 682189105 0 -27,929 -100.00 0 -100.00
2022-05-12 2022-03-31 13F ON SEMICONDUCTOR COM 682189105 27,929 -67,638 -70.78 1,749 -73.07 0.0143
2022-02-10 2021-12-31 13F ON SEMICONDUCTOR COM 682189105 95,567 41,138 75.58 6,491 160.54 0.0467
2021-11-12 2021-09-30 13F ON SEMICONDUCTOR COM 682189105 54,429 -136,556 -71.50 2,491 -65.92 0.0185
2021-08-12 2021-06-30 13F ON SEMICONDUCTOR COM 682189105 190,985 190,985 7,311 0.0579
2021-02-12 2020-12-31 13F ON SEMICONDUCTOR COM 682189105 0 -13,936 -100.00 0 -100.00
2020-11-13 2020-09-30 13F ON SEMICONDUCTOR COM 682189105 13,936 13,936 302 0.0037
2020-05-13 2020-03-31 13F ON Semiconductor COM 682189105 0 -39,953 -100.00 0 -100.00
2020-02-13 2019-12-31 13F ON Semiconductor COM 682189105 39,953 39,953 974 0.0077
2019-08-12 2019-06-30 13F ON Semiconductor COM 682189105 0 -35,348 -100.00 0 -100.00
2019-05-13 2019-03-31 13F/A-1 ON Semiconductor COM 682189105 35,348 -232,082 -86.78 727 -83.53 0.0065
2019-05-13 2019-03-31 13F ON Semiconductor COM 682189105 267,430 0 4,415
2019-02-13 2018-12-31 13F ON Semiconductor COM 682189105 267,430 -177,942 -39.95 4,415 -46.21 0.0391
2018-11-14 2018-09-30 13F ON Semiconductor COM 682189105 445,372 54,924 14.07 8,208 -5.46 0.0448
2018-08-14 2018-06-30 13F ON Semiconductor COM 682189105 390,448 211,708 118.44 8,682 98.58 0.0453
2018-05-15 2018-03-31 13F ON Semiconductor COM 682189105 178,740 -754,988 -80.86 4,372 -77.64 0.0262
2018-02-09 2017-12-31 13F ON Semiconductor COM 682189105 933,728 690,513 283.91 19,552 335.26 0.1078
2017-11-13 2017-09-30 13F ON Semiconductor COM 682189105 243,215 243,215 -73.95 4,492 -77.03 0.0323
2016-10-31 2016-09-30 13F ON Semiconductor COM 682189105 0 -146,986 -100.00 0 -100.00
2016-07-27 2016-06-30 13F ON Semiconductor COM 682189105 146,986 -106,071 -41.92 1,296 -46.60 0.0121
2016-05-02 2016-03-31 13F ON Semiconductor COM 682189105 253,057 180,612 249.31 2,427 241.83 0.0236
2016-01-28 2015-12-31 13F ON Semiconductor COM 682189105 72,445 72,445 710 0.0073
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
(%)
2026-05-14 2026-03-31 13F ON SEMICONDUCTOR CORP COM ON SEMICONDUCTOR CORP COM Call 36,500 -77.83 2,260 -74.64 n/a n/a n/a
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR CORP COM ON SEMICONDUCTOR CORP COM Call 164,600 -56.70 8,913 -52.44 n/a n/a n/a
2025-11-13 2025-09-30 13F ON SEMICONDUCTOR COM Call 380,100 -43.00 18,743 -46.38 n/a n/a n/a
2025-08-13 2025-06-30 13F ON SEMICONDUCTOR COM Call 666,900 -28.30 34,952 -7.64 n/a n/a n/a
2025-05-14 2025-03-31 13F ON SEMICONDUCTOR COM Call 930,100 226.58 37,846 110.77 n/a n/a n/a
2025-02-13 2024-12-31 13F ON SEMICONDUCTOR COM Call 284,800 98.47 17,957 72.34 n/a n/a n/a
2024-11-13 2024-09-30 13F ON SEMICONDUCTOR COM Call 143,500 -49.08 10,420 -46.06 n/a n/a n/a
2024-08-13 2024-06-30 13F ON SEMICONDUCTOR COM Call 281,800 -10.31 19,317 -16.41 n/a n/a n/a
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM Call 314,200 -8.56 23,109 -19.48 n/a n/a n/a
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM Call 343,600 158.15 28,701 131.99 n/a n/a n/a
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM Call 133,100 12,372 n/a n/a n/a
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F ON SEMICONDUCTOR COM Call 141,000 15.10 11,607 51.92 n/a n/a n/a
2023-02-13 2022-12-31 13F ON SEMICONDUCTOR COM Call 122,500 143.54 7,640 143.70 n/a n/a n/a
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM Call 50,300 120.61 3,135 173.32 n/a n/a n/a
2022-08-12 2022-06-30 13F ON SEMICONDUCTOR COM Call 22,800 -83.28 1,147 -86.57 n/a n/a n/a
2022-05-12 2022-03-31 13F ON SEMICONDUCTOR COM Call 136,400 33.20 8,540 22.79 n/a n/a n/a
2022-02-10 2021-12-31 13F ON SEMICONDUCTOR COM Call 102,400 324.90 6,955 530.55 n/a n/a n/a
2021-11-12 2021-09-30 13F ON SEMICONDUCTOR COM Call 24,100 -75.03 1,103 -70.14 n/a n/a n/a
2021-08-12 2021-06-30 13F ON SEMICONDUCTOR COM Call 96,500 -20.84 3,694 -27.17 n/a n/a n/a
2021-05-14 2021-03-31 13F ON SEMICONDUCTOR COM Call 121,900 26.32 5,072 37.30 n/a n/a n/a
2019-08-12 2019-06-30 13F ON Semiconductor COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-13 2019-03-31 13F ON Semiconductor COM Call 27,200 0.00 449 0.00 n/a n/a n/a
2019-02-13 2018-12-31 13F ON Semiconductor COM Call 27,200 -25.48 449 -33.28 n/a n/a n/a
2018-11-14 2018-09-30 13F ON Semiconductor COM Call 36,500 34.19 673 49.89 n/a n/a n/a
2018-08-14 2018-06-30 13F ON Semiconductor COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F ON Semiconductor COM Call 27,300 668 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
(%)
2026-05-14 2026-03-31 13F ON SEMICONDUCTOR CORP COM ON SEMICONDUCTOR CORP COM Put 108,600 -49.86 6,725 -42.67 n/a n/a n/a
2026-02-17 2025-12-31 13F ON SEMICONDUCTOR CORP COM ON SEMICONDUCTOR CORP COM Put 216,600 -68.81 11,729 -65.75 n/a n/a n/a
2025-11-13 2025-09-30 13F ON SEMICONDUCTOR COM Put 694,400 -22.78 34,241 -27.35 n/a n/a n/a
2025-08-13 2025-06-30 13F ON SEMICONDUCTOR COM Put 899,300 -0.50 47,132 28.16 n/a n/a n/a
2025-05-14 2025-03-31 13F ON SEMICONDUCTOR COM Put 903,800 182.35 36,776 82.22 n/a n/a n/a
2025-02-13 2024-12-31 13F ON SEMICONDUCTOR COM Put 320,100 59.89 20,182 38.84 n/a n/a n/a
2024-11-13 2024-09-30 13F ON SEMICONDUCTOR COM Put 200,200 -49.99 14,537 -47.03 n/a n/a n/a
2024-08-13 2024-06-30 13F ON SEMICONDUCTOR COM Put 400,300 18.64 27,441 10.58 n/a n/a n/a
2024-05-15 2024-03-31 13F ON SEMICONDUCTOR COM Put 337,400 12.96 24,816 -0.54 n/a n/a n/a
2024-02-14 2023-12-31 13F ON SEMICONDUCTOR COM Put 298,700 55.25 24,950 39.52 n/a n/a n/a
2023-11-14 2023-09-30 13F ON SEMICONDUCTOR COM Put 192,400 330.43 17,884 323.07 n/a n/a n/a
2023-08-14 2023-06-30 13F ON SEMICONDUCTOR COM Put 44,700 -64.35 4,228 -59.05 n/a n/a n/a
2023-05-15 2023-03-31 13F ON SEMICONDUCTOR COM Put 125,400 95.63 10,323 158.24 n/a n/a n/a
2023-02-13 2022-12-31 13F ON SEMICONDUCTOR COM Put 64,100 252.20 3,998 252.47 n/a n/a n/a
2022-11-14 2022-09-30 13F ON SEMICONDUCTOR COM Put 18,200 1,134 n/a n/a n/a
2022-08-12 2022-06-30 13F ON SEMICONDUCTOR COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-12 2022-03-31 13F ON SEMICONDUCTOR COM Put 147,800 32.56 9,254 22.18 n/a n/a n/a
2022-02-10 2021-12-31 13F ON SEMICONDUCTOR COM Put 111,500 271.67 7,573 451.57 n/a n/a n/a
2021-11-12 2021-09-30 13F ON SEMICONDUCTOR COM Put 30,000 -68.15 1,373 -61.91 n/a n/a n/a
2021-08-12 2021-06-30 13F ON SEMICONDUCTOR COM Put 94,200 87.28 3,606 72.32 n/a n/a n/a
2021-05-14 2021-03-31 13F ON SEMICONDUCTOR COM Put 50,300 -46.60 2,093 -41.97 n/a n/a n/a
2019-08-12 2019-06-30 13F ON Semiconductor COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-13 2019-03-31 13F ON Semiconductor COM Put 10,300 0.00 170 0.00 n/a n/a n/a
2019-02-13 2018-12-31 13F ON Semiconductor COM Put 10,300 -82.24 170 -84.10 n/a n/a n/a
2018-11-14 2018-09-30 13F ON Semiconductor COM Put 58,000 463.11 1,069 528.82 n/a n/a n/a
2018-08-14 2018-06-30 13F ON Semiconductor COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-15 2018-03-31 13F ON Semiconductor COM Put 21,900 38.61 536 61.93 n/a n/a n/a
2018-02-09 2017-12-31 13F ON Semiconductor COM Put 15,800 331 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.