WELLINGTON MANAGEMENT GROUP LLP
"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 51 quarters, returned +2.3% per quarter — versus +2.0% per quarter from simply owning every 13F stock. It beat that baseline in only 54.9% of quarters (excess t = 0.93, 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 1898 · 2026 Q2
| Ticker | Value | Weight | QoQ |
|---|---|---|---|
| NVDA | $24.4B | | TRIM −9% |
| AVGO | $19.5B | | ADD +4% |
| MSFT | $17.8B | | TRIM −10% |
| AAPL | $17.2B | | TRIM −9% |
| GOOGL | $15.9B | | TRIM −7% |
| LLY | $13.2B | | TRIM −18% |
| AMZN | $13.1B | | TRIM −12% |
| MRK | $11.1B | | ADD +2% |
| MA | $6.5B | | TRIM −2% |
| GOOG | $6.1B | | ADD +25% |
| MU | $5.8B | | ADD +29% |
| JNJ | $5.7B | | ADD +13% |
| AMD | $5.4B | | ADD +34% |
| AZN | $5.4B | | ADD +20% |
| KLAC | $4.5B | | ADD +3% |
| UNH | $4.4B | | ADD +6% |
| BLK | $4.3B | | ADD +23% |
| TSLA | $4.1B | | ADD +8% |
| META | $4.1B | | TRIM −38% |
| SRE | $4.1B | | TRIM −5% |
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.