Westchester Capital Management, LLC
"13F equity value" = market value of this filer's US-listed long equity positions only. It excludes cash, bonds, non-US and short positions, so it understates a fund's true assets under management — often by a lot.
13F holdings are disclosed ~45 days after quarter-end, and they never reveal when within the quarter a fund actually bought. So any 13F-based summary is structurally late and blurred — this applies to every fund, including this one.
We backtested copying it anyway. Buying this fund's new positions the day each filing went public, over 29 quarters, returned +2.2% per quarter — versus +2.5% per quarter from simply owning every 13F stock. It beat that baseline in only 41.4% of quarters (excess t = 0.15, not statistically significant). Its filings tell you what it bought — not what you should buy.
Quarterly compounding, invested quarters only · entry 47 days after quarter-end (when 13F data becomes public)
Top 20 holdings of 297 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| EA | $148M | | ADD |
| NSC | $144M | | ADD |
| WBD | $144M | | ADD |
| WBS | $127M | | NEW |
| GTLS | $103M | | HOLD |
| UNF | $65M | | NEW |
| CWAN | $62M | | NEW |
| CTRA | $56M | | NEW |
| DBRG | $45M | | NEW |
| SEE | $40M | | ADD |
| PRA | $36M | | TRIM |
| HOL | $34M | | ADD |
| PEN | $25M | | NEW |
| MASI | $25M | | NEW |
| ANSC | $23M | | ADD |
| AIRT | $22M | | HOLD |
| QRVO | $20M | | NEW |
| OS | $16M | | NEW |
| SZZL | $16M | | HOLD |
| KFII | $15M | | TRIM |
QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.
New positions in 2026 Q1
Method & Limitations
Method: a "new position" = held this quarter, absent last quarter (options excluded; stocks with <50 prior holders excluded to filter spin-off artifacts). Entry 47 days after quarter-end — the first day the public could act on the filing. Benchmark = equal-weighted universe of all 13F-held stocks. Limitations: quarterly snapshots can't see intra-quarter trades; survivorship bias — funds that shut down are absent, which flatters the sample. Statistics, not advice.