Robeco Institutional Asset Management B.V.
"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 32 quarters, returned +3.3% per quarter — versus +2.7% per quarter from simply owning every 13F stock. It beat that baseline in only 56.2% of quarters (excess t = -0.85, 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 842 · 2026 Q1
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| NVDA | $4.6B | | ADD |
| AAPL | $3.6B | | ADD |
| MSFT | $2.7B | | TRIM |
| GOOGL | $2.6B | | HOLD |
| AMZN | $1.8B | | TRIM |
| AVGO | $1.2B | | ADD |
| META | $950M | | TRIM |
| GOOG | $915M | | ADD |
| JPM | $884M | | TRIM |
| ABBV | $707M | | HOLD |
| LLY | $601M | | TRIM |
| AMAT | $601M | | ADD |
| PBR/A | $582M | | ADD |
| TSLA | $580M | | ADD |
| MA | $548M | | ADD |
| INFY | $521M | | ADD |
| VRT | $516M | | ADD |
| IBN | $514M | | ADD |
| CSCO | $498M | | ADD |
| LNG | $496M | | 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.