CSX Corporation
US ˙ NasdaqGS ˙ US1264081035

SecurityCSX / CSX Corporation
InstitutionQube Research & Technologies Ltd
Latest Disclosed Ownership523,798 shares
Latest Disclosed Value $ 21,501,908
Qube Research & Technologies Ltd ownership in CSX / CSX Corporation

On May 15, 2026 - Qube Research & Technologies Ltd filed a 13F-HR form disclosing ownership of 523,798 shares of CSX Corporation (US:CSX) valued at $21,501,908 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 4,119,814 shares of CSX Corporation. This represents a change in shares of -87.29% during the quarter. The current value of the position is $24,325,179 USD.

Qube Research & Technologies Ltd has a history of taking positions in derivatives of the underlying security (CSX) in the form of stock options. The firm currently holds call options representing 2,300 of underlying shares valued at $94,415 USD and put options representing 105,300 of underlying shares valued at $4,322,565 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.

CSX / CSX 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)
2026-05-15 2026-03-31 13F CSX COM 126408103 523,798 -3,596,016 -87.29 21,502 -85.60 0.0239
2026-02-17 2025-12-31 13F CSX COM 126408103 4,119,814 3,614,516 715.32 149,343 732.32 0.1517
2025-11-14 2025-09-30 13F CSX COM 126408103 505,298 -1,654,265 -76.60 17,943 -74.54 0.0185
2025-08-14 2025-06-30 13F CSX COM 126408103 2,159,563 -8,053,117 -78.85 70,467 -76.56 0.0716
2025-05-15 2025-03-31 13F CSX COM 126408103 10,212,680 7,489,303 275.00 300,559 242.00 0.3486
2025-02-14 2024-12-31 13F CSX COM 126408103 2,723,377 -1,761,266 -39.27 87,883 -43.25 0.1152
2024-11-14 2024-09-30 13F CSX COM 126408103 4,484,643 421,545 10.37 154,855 13.94 0.2282
2024-08-14 2024-06-30 13F CSX COM 126408103 4,063,098 3,134,896 337.74 135,911 295.00 0.2148
2024-05-14 2024-03-31 13F CSX COM 126408103 928,202 886,126 2,106.01 34,408 2,259.95 0.0546
2024-02-13 2023-12-31 13F CSX COM 126408103 42,076 41,368 5,842.94 1,459 6,842.86 0.0028
2023-11-13 2023-09-30 13F CSX COM 126408103 708 -354,134 -99.80 22 -99.83 0.0001
2023-08-14 2023-06-30 13F CSX COM 126408103 354,842 -28,931 -7.54 12,100 5.31 0.0440
2023-05-15 2023-03-31 13F CSX COM 126408103 383,773 -1,047,543 -73.19 11,490 -74.09 0.0494
2023-02-14 2022-12-31 13F CSX COM 126408103 1,431,316 -2,796,493 -66.15 44,342 -60.63 0.2374
2022-11-14 2022-09-30 13F CSX COM 126408103 4,227,809 822,133 24.14 112,629 13.80 0.6707
2022-08-15 2022-06-30 13F CSX COM 126408103 3,405,676 3,405,676 98,969 0.7300
2022-05-09 2022-03-31 13F CSX COM 126408103 0 -477,133 -100.00 0 -100.00
2022-02-10 2021-12-31 13F/A-1 CSX COM 126408103 477,133 450,886 1,717.86 17,940 2,197.06 0.1385
2022-02-01 2021-12-31 13F CSX COM 126408103 477,133 450,886 17,940 0.1386
2021-11-12 2021-09-30 13F CSX COM 126408103 26,247 -144,350 -84.61 781 -85.73 0.0098
2021-08-13 2021-06-30 13F CSX COM 126408103 170,597 121,650 248.53 5,473 15.98 0.0624
2021-05-14 2021-03-31 13F CSX COM 126408103 48,947 9,182 23.09 4,719 30.76 0.0748
2021-02-16 2020-12-31 13F CSX COM 126408103 39,765 -181,906 -82.06 3,609 -79.04 0.0513
2020-11-12 2020-09-30 13F CSX COM 126408103 221,671 215,464 3,471.31 17,217 3,876.21 0.2457
2020-08-14 2020-06-30 13F CSX COM 126408103 6,207 -4,029 -39.36 433 -26.24 0.0064
2020-05-15 2020-03-31 13F CSX COM 126408103 10,236 -44,391 -81.26 587 -85.15 0.0241
2020-02-13 2019-12-31 13F CSX COM 126408103 54,627 51,237 1,511.42 3,953 1,582.13 0.1241
2019-11-13 2019-09-30 13F CSX COM 126408103 3,390 -5,842 -63.28 235 -67.09 0.1565
2019-08-02 2019-06-30 13F CSX COM 126408103 9,232 -7,978 -46.36 714 -44.57 0.1700
2019-05-15 2019-03-31 13F CSX COM 126408103 17,210 9,812 132.63 1,288 180.00 0.1701
2019-02-14 2018-12-31 13F CSX COM 126408103 7,398 -18,787 -71.75 460 -76.28 0.1985
2018-11-14 2018-09-30 13F CSX COM 126408103 26,185 20,497 360.36 1,939 434.16 0.2578
2018-08-15 2018-06-30 13F/A-1 CSX COM 126408103 5,688 5,688 363 0.2290
2018-08-14 2018-06-30 13F CSX COM 126408103 5,688 363 0.2290
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 CSX COM Call 2,300 -76.77 94 -73.74 n/a n/a n/a
2026-02-17 2025-12-31 13F CSX COM Call 9,900 -82.48 359 -82.15 n/a n/a n/a
2025-11-14 2025-09-30 13F CSX COM Call 56,500 -44.06 2,006 -39.12 n/a n/a n/a
2025-08-14 2025-06-30 13F CSX COM Call 101,000 527.33 3,296 596.62 n/a n/a n/a
2025-05-15 2025-03-31 13F CSX COM Call 16,100 335.14 474 297.48 n/a n/a n/a
2025-02-14 2024-12-31 13F CSX COM Call 3,700 119 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 CSX COM Put 105,300 -46.11 4,323 -38.98 n/a n/a n/a
2026-02-17 2025-12-31 13F CSX COM Put 195,400 -7.83 7,083 -5.91 n/a n/a n/a
2025-11-14 2025-09-30 13F CSX COM Put 212,000 -20.36 7,528 -13.33 n/a n/a n/a
2025-08-14 2025-06-30 13F CSX COM Put 266,200 61.14 8,686 78.69 n/a n/a n/a
2025-05-15 2025-03-31 13F CSX COM Put 165,200 1,473.33 4,862 1,338.17 n/a n/a n/a
2025-02-14 2024-12-31 13F CSX COM Put 10,500 118.75 339 104.85 n/a n/a n/a
2024-11-14 2024-09-30 13F CSX COM Put 4,800 166 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.