Boston Partners
"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 31 quarters, returned +2.2% per quarter — versus +2.1% per quarter from simply owning every 13F stock. It beat that baseline in only 51.6% of quarters (excess t = 0.69, 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 767 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| JPM | $2.1B | | TRIM |
| USFD | $1.5B | | HOLD |
| COR | $1.4B | | ADD |
| MPC | $1.4B | | TRIM |
| LPLA | $1.2B | | ADD |
| FANG | $1.1B | | ADD |
| AMZN | $1.1B | | ADD |
| KGC | $1.1B | | TRIM |
| MCK | $1.0B | | TRIM |
| MCHP | $953M | | TRIM |
| PM | $953M | | TRIM |
| MU | $951M | | TRIM |
| CRH | $946M | | ADD |
| AMAT | $934M | | HOLD |
| FE | $893M | | HOLD |
| COP | $893M | | ADD |
| META | $856M | | ADD |
| FLEX | $852M | | ADD |
| WFC | $835M | | ADD |
| DIS | $816M | | ADD |
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.