ONEOK, Inc.
US ˙ NYSE ˙ US6826801036

SecurityOKE / ONEOK, Inc.
InstitutionMaven Securities LTD
Latest Disclosed Ownership38,974 shares
Latest Disclosed Value $ 3,518,378
Maven Securities LTD ownership in OKE / ONEOK, Inc.

On May 15, 2026 - Maven Securities LTD filed a 13F-HR form disclosing ownership of 38,974 shares of ONEOK, Inc. (US:OKE) valued at $3,522,860 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 14, 2025 disclosing 0 shares of ONEOK, Inc.. The current value of the position is $3,466,737 USD.

Maven Securities LTD has a history of taking positions in derivatives of the underlying security (OKE) in the form of stock options. The firm currently holds call options representing 20,500 of underlying shares valued at $1,850,638 USD and put options representing 13,000 of underlying shares valued at $1,173,575 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.

OKE / ONEOK, Inc. 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)
2026-05-15 2026-03-31 13F ONEOK INC COM 682680103 38,974 38,974 3,518 0.0644
2025-05-14 2025-03-31 13F ONEOK INC COM 682680103 0 -3,015 -100.00 0 -100.00
2025-02-14 2024-12-31 13F ONEOK INC COM 682680103 3,015 3,015 303 0.0073
2024-05-14 2024-03-31 13F ONEOK INC COM 682680103 0 -14,444 -100.00 0 -100.00
2024-02-12 2023-12-31 13F ONEOK INC COM 682680103 14,444 9,583 197.14 1,014 229.22 0.0210
2023-11-13 2023-09-30 13F ONEOK INC COM 682680103 4,861 4,861 308 0.0035
2023-05-15 2023-03-31 13F ONEOK INC COM 682680103 0 -8,925 -100.00 0 -100.00
2023-02-14 2022-12-31 13F ONEOK INC COM 682680103 8,925 -30,304 -77.25 586 -70.85 0.0133
2022-11-16 2022-09-30 13F/A-1 ONEOK INC COM 682680103 39,229 39,229 2,010 0.0372
2022-11-14 2022-09-30 13F ONEOK INC COM 682680103 39,229 39,229 20,101 0.0361
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
(%)
2026-05-15 2026-03-31 13F ONEOK INC CALL Call 20,500 -6.39 1,851 14.91 n/a n/a n/a
2026-02-13 2025-12-31 13F ONEOK INC CALL Call 21,900 -17.67 1,611 -17.14 n/a n/a n/a
2025-11-20 2025-09-30 13F ONEOK INC CALL Call 26,600 -38.57 1,943 -45.02 n/a n/a n/a
2025-08-14 2025-06-30 13F ONEOK INC CALL Call 43,300 518.57 3,535 409.22 n/a n/a n/a
2025-05-14 2025-03-31 13F ONEOK INC CALL Call 7,000 -58.82 695 -59.32 n/a n/a n/a
2025-02-14 2024-12-31 13F ONEOK INC CALL Call 17,000 117.95 1,707 140.28 n/a n/a n/a
2024-11-14 2024-09-30 13F ONEOK INC CALL Call 7,800 56.00 711 74.45 n/a n/a n/a
2024-08-29 2024-06-30 13F/A ONEOK INC CALL Call 5,000 408 n/a n/a n/a
2024-05-14 2024-03-31 13F ONEOK INC CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F ONEOK INC CALL Call 37,200 -1.85 2,612 8.70 n/a n/a n/a
2023-11-13 2023-09-30 13F ONEOK INC CALL Call 37,900 232.46 2,404 241.82 n/a n/a n/a
2023-08-04 2023-06-30 13F ONEOK INC CALL Call 11,400 2.70 704 -0.28 n/a n/a n/a
2023-05-15 2023-03-31 13F ONEOK INC CALL Call 11,100 60.87 705 55.63 n/a n/a n/a
2023-02-14 2022-12-31 13F ONEOK INC CALL Call 6,900 -57.41 453 -45.42 n/a n/a n/a
2022-11-16 2022-09-30 13F/A ONEOK INC CALL Call 16,200 -16.92 830 -23.29 n/a n/a n/a
2022-11-14 2022-09-30 13F ONEOK INC CALL Call 16,200 8,301 n/a n/a n/a
2022-08-15 2022-06-30 13F ONEOK INC CALL Call 19,500 39.29 1,082 9.40 n/a n/a n/a
2022-05-16 2022-03-31 13F ONEOK INC CALL Call 14,000 989 n/a n/a n/a
2021-08-16 2021-06-30 13F ONEOK INC CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F ONEOK INC CALL Call 26,400 1,337 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
(%)
2026-05-15 2026-03-31 13F ONEOK INC PUT Put 13,000 1,174 n/a n/a n/a
2025-11-20 2025-09-30 13F ONEOK INC PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F ONEOK INC PUT Put 4,100 335 n/a n/a n/a
2025-05-14 2025-03-31 13F ONEOK INC PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F ONEOK INC PUT Put 7,900 -37.30 793 -30.92 n/a n/a n/a
2024-11-14 2024-09-30 13F ONEOK INC PUT Put 12,600 17.76 1,148 31.65 n/a n/a n/a
2024-08-29 2024-06-30 13F/A ONEOK INC PUT Put 10,700 873 n/a n/a n/a
2024-05-14 2024-03-31 13F ONEOK INC PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F ONEOK INC PUT Put 58,200 142.50 4,087 168.46 n/a n/a n/a
2023-11-13 2023-09-30 13F ONEOK INC PUT Put 24,000 93.55 1,522 98.95 n/a n/a n/a
2023-08-04 2023-06-30 13F ONEOK INC PUT Put 12,400 22.77 765 19.34 n/a n/a n/a
2023-05-15 2023-03-31 13F ONEOK INC PUT Put 10,100 -76.12 642 -76.93 n/a n/a n/a
2023-02-14 2022-12-31 13F ONEOK INC PUT Put 42,300 -18.02 2,779 5.11 n/a n/a n/a
2022-11-16 2022-09-30 13F/A ONEOK INC PUT Put 51,600 115.00 2,644 98.50 n/a n/a n/a
2022-11-14 2022-09-30 13F ONEOK INC PUT Put 51,600 26,440 n/a n/a n/a
2022-08-15 2022-06-30 13F ONEOK INC PUT Put 24,000 1,042.86 1,332 800.00 n/a n/a n/a
2022-05-16 2022-03-31 13F ONEOK INC PUT Put 2,100 148 n/a n/a n/a
2021-08-16 2021-06-30 13F ONEOK INC PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F ONEOK INC PUT Put 34,800 1,763 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.