§ 13F · FUND PROFILE
Asset Management One Co., Ltd..
Japanese institutional asset management
AUM · $39.0B (13F)Positions · 957Turnover · 96% · Q1Filed · Jul 28, 2026
CONCENTRATION
33%
Top 10 holdings
NEW BUYS
+37
+$246M deployed
EXITS
0
No exits
SECTOR SHIFT
TECHNOLOGY → OTHER
-2pp · +2pp
§ 01 · TOP HOLDINGS
The book · Q1 2026
FILED JUL 28, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q1 |
|---|---|---|---|---|---|---|
| 1 | IVV | ISHARES TR | 3.25M | $2.4B | 6.3% | +1% |
| 2 | NVDA | NVIDIA CORPORATION | 10.76M | $2.2B | 5.5% | −3% |
| 3 | AAPL | APPLE INC | 6.71M | $1.9B | 5.0% | +2% |
| 4 | MSFT | MICROSOFT CORP | 3.43M | $1.3B | 3.3% | +2% |
| 5 | AMZN | AMAZON COM INC | 4.66M | $1.1B | 2.9% | +1% |
| 6 | GOOGL | ALPHABET INC | 2.88M | $1.0B | 2.6% | +4% |
| 7 | AVGO | BROADCOM INC | 2.15M | $811M | 2.1% | −1% |
| 8 | GOOG | ALPHABET INC | 2.21M | $781M | 2.0% | −2% |
| 9 | MU | MICRON TECHNOLOGY INC | 530K | $612M | 1.6% | +5% |
| 10 | META | META PLATFORMS INC | 1.07M | $604M | 1.6% | ±0% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other42.2% (+2pp)
Technology13.0% (−2pp)
Semiconductors11.2% (±0)
Media7.5% (±0)
Real Estate6.7% (±0)
Retail6.3% (±0)
§ 03 · THE ASSET SIGNAL
AC read
Asset Management One Co., Ltd. is a Quality / Compounder fund managing $39.0 billion in assets. The fund runs a broad portfolio of 957 positions, broad diversification across holdings, with the top 10 accounting for 33%. Trading activity is aggressive at 96% quarterly turnover, with 37 new positions and 0 exits last quarter. Top sector allocations: Other (42%), Technology (13%), Semiconductors (11%).
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
3 OF 2 FILINGS MEASURED
Q1 2026
Busy quarter
+37 buys · −0 exits · 833 changed
Q4 2025
Busy quarter
+49 buys · −0 exits · 846 changed
Q3 2025
Busy quarter
+44 buys · −0 exits · 854 changed