§ 13F · FUND PROFILE
RHUMBLINE ADVISERS.
Index fund management, quantitative indexing
AUM · $132.6B (13F)Positions · 4189Turnover · 94% · Q2Filed · Aug 12, 2026
CONCENTRATION
30%
Top 10 holdings
NEW BUYS
+237
+$716M deployed
EXITS
0
No exits
SECTOR SHIFT
OTHER → SEMICONDUCTORS
-3pp · +4pp
§ 01 · TOP HOLDINGS
The book · Q2 2026
FILED AUG 12, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q2 |
|---|---|---|---|---|---|---|
| 1 | NVDA | NVIDIA CORP COM | 41.54M | $8.3B | 6.3% | −1% |
| 2 | AAPL | APPLE INC COM STK | 25.08M | $7.3B | 5.5% | −3% |
| 3 | MSFT | MICROSOFT CORP COM | 12.61M | $4.7B | 3.5% | −3% |
| 4 | AMZN | AMAZON.COM INC COM | 16.02M | $3.8B | 2.9% | −3% |
| 5 | GOOGL | ALPHABET INC CAP STK CL A | 10.28M | $3.7B | 2.8% | +1% |
| 6 | AVGO | BROADCOM INC | 8.15M | $3.1B | 2.3% | −1% |
| 7 | GOOG | ALPHABET INC CAP STK CL C | 8.25M | $2.9B | 2.2% | +1% |
| 8 | MU | MICRON TECHNOLOGY | 1.97M | $2.3B | 1.7% | +3% |
| 9 | META | META PLATFORMS INC | 3.81M | $2.1B | 1.6% | −1% |
| 10 | TSLA | TESLA INC | 4.88M | $2.1B | 1.5% | +1% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other46.6% (−3pp)
Semiconductors17.0% (+4pp)
Technology14.6% (±0)
Media8.0% (±0)
Retail6.4% (−1pp)
Financial Services5.4% (±0)
§ 03 · THE RHUMBLINE SIGNAL
AC read
RHUMBLINE ADVISERS is a Passive / Index fund managing $132.6 billion in assets. The fund runs a massive portfolio of 4,189 positions, broad diversification across holdings, with the top 10 accounting for 30%. Trading activity is aggressive at 94% quarterly turnover, with 237 new positions and 0 exits last quarter. Top sector allocations: Other (47%), Semiconductors (17%), Technology (15%).
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
4 OF 2 FILINGS MEASURED
Q2 2026
Busy quarter
+237 buys · −0 exits · 3698 changed
Q1 2026
Busy quarter
+84 buys · −0 exits · 3753 changed
Q4 2025
Busy quarter
+106 buys · −0 exits · 3789 changed
Q3 2025
Busy quarter
+100 buys · −0 exits · 3731 changed