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Walleye Trading LLC

Position in SAN — Banco Santander, S.A.

CIK 1388391 NEW YORK, NY

Position in SAN

as of Mar 31, 2026 · filed May 11, 2026
Position Value
$675,739
+$675,739 QoQ
Shares Held
59,906
Ownership
0.000%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
23 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in SAN Over Time

Shares Held

Position Value (USD)

Derivatives in SAN

reported options exposure · as of Mar 31, 2026
CallValue
$311,328
CallShares
27,600
PutValue
$1,097,544
PutShares
97,300

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 Banks - Diversified

Financial Services · as of Mar 31, 2026

Walleye Trading LLC holds $57,069,236 across 10 Banks - Diversified names. SAN ranks #8 (1.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 SAN
Banco Santander, S.A.
This page
59,906 $675,739

All Filings in SAN

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $675,739 59,906
2026-03-31 $1,097,544 97,300
2026-03-31 $311,328 27,600
2025-12-31 $647,496 55,200
2025-12-31 $563,040 48,000
2025-09-30 $2,134,776 203,700
2025-09-30 $326,976 31,200
2025-09-30 $1,011,340 96,502
2025-06-30 $394,250 47,500
2025-06-30 $818,728 98,642
2025-06-30 $1,801,100 217,000
2024-09-30 $82,706 16,217
2024-09-30 $510 100
2024-06-30 $23,150 5,000
2024-06-30 $270,855 58,500
2024-03-31 $141,812 29,300
2024-03-31 $101,615 20,995
2024-03-31 $72,600 15,000
2023-12-31 $182,188 44,007
2023-12-31 $434,286 104,900
2023-12-31 $518,742 125,300
2023-09-30 $1,126,872 299,700
2023-09-30 $586,150 155,891
2023-09-30 $378,632 100,700
2023-06-30 $390,292 105,200
2023-06-30 $1,030,267 277,700
2023-03-31 $483,021 130,900
2023-03-31 $369,000 100,000
2022-12-31 $1,326,320 449,600
2022-12-31 $368,750 125,000
2022-09-30 $1,499,648 646,400
2022-09-30 $195,344 84,200
2022-06-30 $1,785,840 637,800
2022-06-30 $241,920 86,400
2022-03-31 $545,194 161,300
2022-03-31 $1,880,970 556,500
2021-12-31 $3,124,184 949,600
2021-12-31 $525,084 159,600
2021-09-30 $3,279,720 906,000
2021-09-30 $2,141,954 591,700
2021-06-30 $3,035,333 776,300
2021-06-30 $2,313,547 591,700
2021-03-31 $1,690,304 492,800
2021-03-31 $2,237,732 652,400
2020-12-31 $1,496,025 490,500
2020-12-31 $2,769,705 908,100
2020-09-30 $470,455 254,300
2020-09-30 $1,485,550 803,000
2020-06-30 $26,401 10,955
2020-06-30 $398,373 165,300