Which hedge funds own NX? QUANEX BLDG PRODS CORP, Q2 2026 13F holders
Industrials · Open on the interactive board
8 of the hedge funds tracked by WhaleCreep disclosed a position in NX (QUANEX BLDG PRODS CORP) in their Q2 2026 13F filings, worth $18.1m in total. The largest holder by portfolio weight is CastleKnight Management LP at 0.2% of its book. 1 manager opened a new position this quarter: Fox Run Management, L.L.C.. 4 exited: Brevan Howard Capital Management LP, Marshall Wace, LLP, Numerai GP LLC.
Who discovered NX first?
Earliest meaningful positions among the 4 tracked managers we observed opening NX since Q4 2008.
1 Gates Capital Management, Inc. First reported Q4 2008 High conviction 2.9%initial weight · $2.0m Exitedby Q4 2013 · held 17q +101%stock since Q4 2008
Weight of Gates Capital Management, Inc.'s 13F book in NX, by quarter
- 6.8% peak weight, Q4 2011
- $55.7m peak reported value
- 17 quarters held
- 16q before the median tracked entry
The stock's split-adjusted price moved +101% between Q4 2008 and Q3 2013, the last quarter this manager reported the position.
11 managers already held NX when our coverage of them began
CastleKnight Management LP (Q1 2026), Gsa Capital Partners LLP (Q1 2026), Quantbot Technologies LP (Q1 2026), Engineers Gate Manager LP (Q1 2026), Arrowstreet Capital, Limited Partnership (Q1 2026), Aqr Capital Management LLC (Q1 2026), Citadel Advisors LLC (Q1 2026), Brevan Howard Capital Management LP (Q1 2026), Marshall Wace, LLP (Q1 2026), Numerai GP LLC (Q1 2026), Trexquant Investment LP (Q1 2026).
Their first filing on record already includes NX, so when they first bought it is unknown. They are not ranked above.
View discovery timeline
Dots mark the ranked managers' first reported quarters. Price is the quarter-end price implied by 13F filings, split-adjusted, shown from Q1 2026 where the series is continuous. Coverage widened in Q1 2026 from about a hundred managers to over a thousand, so holders and new holders are shown relative to the managers filing each quarter.
How this is calculated
13F filings are quarterly snapshots of long US-listed equity positions. They do not show exact purchase dates, intra-quarter trading, short positions, most derivatives, or a manager's actual performance. "First reported" is the first quarter-end filing that shows the position.
A manager is ranked only if we observed it filing, without NX, within two quarters before its first position. Ranking is by the first quarter the position reached 1% of the manager's 13F book in a run of at least 2 filings, then by peak weight. "High conviction" means a peak weight of at least 5%.
Stock changes are the split-adjusted change in the quarter-end price implied by 13F filings, excluding dividends. They describe the stock over the period, not the return any manager earned. Phases are cut where the share of tracked managers holding NX passed one third and two thirds of its peak.
Which hedge funds hold NX? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| CastleKnight Management LP | Q2 2026 | 0.2% | $6.0m | 320,640 | -7% | reduced |
| Gsa Capital Partners LLP | Q2 2026 | 0.1% | $931.0k | 49,978 | -15% | reduced |
| Fox Run Management, L.L.C. | Q2 2026 | 0.1% | $339.0k | 18,204 | – | new |
| Quantbot Technologies LP | Q2 2026 | 0.0% | $297.2k | 15,960 | -72% | reduced |
| Engineers Gate Manager LP | Q2 2026 | 0.0% | $682.6k | 36,662 | 227% | added |
| Arrowstreet Capital, Limited Partnership | Q2 2026 | 0.0% | $5.0m | 268,671 | -55% | reduced |
| Aqr Capital Management LLC | Q2 2026 | 0.0% | $4.1m | 222,333 | -28% | reduced |
| Citadel Advisors LLC | Q2 2026 | 0.0% | $707.5k | 37,998 | 17% | added |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Brevan Howard Capital Management LP | 0.1% | $844.6k |
| Marshall Wace, LLP | 0.0% | $245.1k |
| Numerai GP LLC | 0.3% | $665.4k |
| Trexquant Investment LP | 0.1% | $1.8m |
Held in a manager's last filing on record
These managers have not filed for the latest quarter; their last disclosure is dated.
| Manager | Last filing | Weight |
|---|---|---|
| renaissance | Q2 2026 | 0.0% |
How has hedge fund ownership of NX changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 9 | $29.6m |
| Q1 2026 | 12 | $42.7m |
| Q4 2025 | 2 | $14.7m |
| Q3 2025 | 2 | $10.8m |
| Q2 2025 | 1 | $16.3m |
| Q1 2025 | 1 | $18.2m |
| Q4 2024 | 1 | $29.8m |
| Q3 2024 | 2 | $35.0m |
| Q2 2024 | 2 | $33.7m |
| Q1 2024 | 1 | $44.4m |
| Q4 2023 | 2 | $35.8m |
| Q3 2023 | 3 | $32.6m |
| Q2 2023 | 1 | $30.8m |
| Q1 2023 | 2 | $25.1m |
| Q4 2022 | 2 | $27.4m |
| Q3 2022 | 1 | $23.3m |
Counts every tracked manager that disclosed NX in that quarter's filing, including managers that have since stopped filing.