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SIMPLEX TRADING, LLC

Position in TREX — Trex Co Inc

CIK 1488542 CHICAGO, IL

Position in TREX

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$924,048
+$192,736 QoQ
Shares Held
25,372
+21.7% QoQ
Ownership
0.024%
of shares outstanding
% of Portfolio
0.03%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in TREX Over Time

Shares Held

Position Value (USD)

Position in Building Products & Equipment

Industrials · as of Mar 31, 2026

SIMPLEX TRADING, LLC holds $5,250,058 across 18 Building Products & Equipment names. TREX ranks #3 (17.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 TREX
Trex Co Inc
This page
25,372 $924,048

All Filings in TREX

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18 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $924,048 25,372
2025-12-31 $731,312 20,847
2025-09-30 $205,491 3,977
2025-06-30 $202,511 3,724
2024-12-31 $40,727 590
2024-09-30 $18,043 271
2024-03-31 $338,152 3,390
2023-12-31 $1,006,560 12,158
2022-09-30 $456,229 10,383
2022-06-30 $481,889 8,855
2022-03-31 $397,533 6,085
2021-12-31 $717,279 5,312
2021-09-30 $336,369 3,300
2021-06-30 $337,293 3,300
2021-03-31 $440,032 4,807
2020-12-31 $22,855 273
2020-09-30 $218,594 3,053
2020-03-31 $9,857 123