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 50 quarters, returned +1.8% per quarter — versus +1.7% per quarter from simply owning every 13F stock. It beat that baseline in only 50.0% of quarters (excess t = -0.89, not statistically significant). Its filings tell you what it bought — not what you should buy.
Quarterly compounding, invested quarters only · entry after the actual SEC deadline plus a 2-day buffer
Top 20 holdings of 802 · 2026 Q2
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| AMZN | $3.1B | | ADD ×2.4 |
| JPM | $2.4B | | ADD +4% |
| USFD | $1.9B | | ADD +14% |
| AMAT | $1.9B | | TRIM −3% |
| FLEX | $1.4B | | TRIM −34% |
| COR | $1.4B | | ADD +9% |
| MU | $1.4B | | TRIM −57% |
| DELL | $1.4B | | TRIM −16% |
| MCHP | $1.3B | | HOLD |
| LPLA | $1.2B | | ADD +3% |
| ABBV | $1.2B | | ADD +39% |
| NXPI | $1.2B | | ADD +33% |
| PM | $1.1B | | ADD +6% |
| FANG | $1.0B | | HOLD |
| DIS | $1.0B | | ADD +25% |
| META | $1.0B | | ADD +20% |
| URI | $1.0B | | HOLD |
| DGX | $1.0B | | ADD +18% |
| COP | $992M | | ADD +41% |
| MS | $985M | | ADD +6% |
QoQ vs previous quarter's share count · NEW = new position · ADD/TRIM = ±2% shares · HOLD = unchanged.
New positions in 2026 Q2
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 is the first trading session after the actual SEC filing deadline plus a 2-day buffer. 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.