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Parallax Volatility Advisers, L.P.

Position in CSX — Csx Corp

CIK 1521001 San Francisco, CA

Position in CSX

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$665,134
-$87,723 QoQ
Shares Held
13,994
-23.7% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
#1,050
of 1,986 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in CSX Over Time

Shares Held

Position Value (USD)

Derivatives in CSX

reported options exposure · as of Jun 30, 2026
CallValue
$0
CallShares
0
PutValue
$8,317,750
PutShares
175,000

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Railroads

Industrials · as of Jun 30, 2026

Parallax Volatility Advisers, L.P. holds $7,847,838 across 2 Railroads names. CSX ranks #2 (8.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 CSX
Csx Corp
This page
13,994 $665,134

All Filings in CSX

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $665,134 13,994
2026-06-30 $8,317,750 175,000
2026-03-31 $7,183,750 175,000
2026-03-31 $752,857 18,340
2025-12-31 $4,915,500 135,600
2025-12-31 $6,419,875 177,100
2025-12-31 $290 8
2025-09-30 $284 8
2025-09-30 $9,971,208 280,800
2025-09-30 $1,132,769 31,900
2025-06-30 $2,564,718 78,600
2025-06-30 $3,050,905 93,500
2025-06-30 $15,287,383 468,507
2025-03-31 $4,855,950 165,000
2025-03-31 $382 13
2024-12-31 $9,681 300
2024-12-31 $225 7
2024-12-31 $6,292,650 195,000
2024-09-30 $6,246,477 180,900
2024-09-30 $27,624 800
2024-06-30 $5,883,855 175,900
2024-06-30 $10,035 300
2024-03-31 $2,224,200 60,000
2024-03-31 $11,121 300
2023-12-31 $1,092,105 31,500
2023-12-31 $2,603,717 75,100
2023-09-30 $2,450,775 79,700
2023-09-30 $2,269,350 73,800
2023-09-30 $167,526 5,448
2023-06-30 $2,339,260 68,600
2023-06-30 $1,244,650 36,500
2023-03-31 $907,182 30,300
2023-03-31 $94,670 3,162
2023-03-31 $925,146 30,900
2022-12-31 $2,490,792 80,400
2022-12-31 $612,660 19,776
2022-12-31 $693,952 22,400
2022-09-30 $1,891,440 71,000
2022-09-30 $238,321 8,946
2022-09-30 $5,772,888 216,700
2022-06-30 $1,205,990 41,500
2022-06-30 $444,618 15,300
2022-03-31 $2,902,375 77,500
2022-03-31 $4,808,654 128,402
2021-12-31 $4,876,720 129,700
2021-12-31 $5,459,520 145,200
2021-12-31 $137,879 3,667
2021-09-30 $4,350,962 146,300
2021-09-30 $4,383,676 147,400
2021-09-30 $5,353 180