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Walleye Trading LLC

Position in BLDR — Builders FirstSource, Inc.

CIK 1388391 NEW YORK, NY

Position in BLDR

as of Jun 30, 2026 · filed Aug 3, 2026
Position Value
$1,110,536
+$490,015 QoQ
Shares Held
12,411
+64.7% QoQ
Ownership
0.012%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#300
of 662 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in BLDR Over Time

Shares Held

Position Value (USD)

Derivatives in BLDR

reported options exposure · as of Jun 30, 2026
CallValue
$5,681,980
CallShares
63,500
PutValue
$2,747,036
PutShares
30,700

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 Building Products & Equipment

Industrials · as of Jun 30, 2026

Walleye Trading LLC holds $9,125,811 across 7 Building Products & Equipment names. BLDR ranks #4 (12.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 BLDR
Builders FirstSource, Inc.
This page
12,411 $1,110,536

All Filings in BLDR

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $5,681,980 63,500
2026-06-30 $1,110,536 12,411
2026-06-30 $2,747,036 30,700
2026-03-31 $620,521 7,537
2026-03-31 $2,840,385 34,500
2026-03-31 $1,086,756 13,200
2025-12-31 $4,475,715 43,500
2025-12-31 $4,424,270 43,000
2025-12-31 $1,156,792 11,243
2025-09-30 $6,632,375 54,700
2025-09-30 $3,745,170 30,888
2025-09-30 $3,261,625 26,900
2025-06-30 $596,752 5,114
2025-06-30 $2,520,504 21,600
2025-06-30 $3,419,017 29,300
2025-03-31 $848,967 6,795
2025-03-31 $1,949,064 15,600
2025-03-31 $1,649,208 13,200
2024-12-31 $4,973,964 34,800
2024-12-31 $3,416,027 23,900
2024-12-31 $5,744,928 40,194
2024-09-30 $1,705,968 8,800
2024-09-30 $4,807,728 24,800
2024-09-30 $10,089,249 52,044
2024-06-30 $7,419,329 53,604
2024-06-30 $3,335,681 24,100
2024-06-30 $636,686 4,600
2024-03-31 $1,355,575 6,500
2024-03-31 $17,027,690 81,648
2024-03-31 $8,696,535 41,700
2023-12-31 $7,061,562 42,300
2023-12-31 $2,737,816 16,400
2023-12-31 $19,974,204 119,649
2023-09-30 $2,576,943 20,700
2023-09-30 $1,170,206 9,400
2023-09-30 $3,870,643 31,092
2023-06-30 $3,236,800 23,800
2023-06-30 $4,088,160 30,060
2023-06-30 $6,800,000 50,000
2023-03-31 $6,125,820 69,000
2023-03-31 $408,388 4,600
2022-12-31 $1,479,264 22,800
2022-12-31 $2,997,456 46,200
2022-09-30 $8,225,232 139,600
2022-09-30 $418,332 7,100
2022-06-30 $688,863 12,828
2022-06-30 $816,240 15,200
2022-06-30 $6,900,450 128,500
2022-03-31 $1,820,028 28,200
2022-03-31 $1,960,660 30,379