§ 13F · FUND PROFILE
Asset Management One Co., Ltd..
Japanese institutional asset management
AUM · $34.5B (13F)Positions · 946Turnover · 96% · Q1Filed · May 8, 2026
CONCENTRATION
33%
Top 10 holdings
NEW BUYS
+37
+$122M deployed
EXITS
0
No exits
SECTOR SHIFT
TECHNOLOGY → OTHER
-2pp · +2pp
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q1 2026
FILED MAY 8, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q1 |
|---|---|---|---|---|---|---|
| 1 | IVV | ISHARES TR | 3.23M | $2.1B | 6.2% | ±0% |
| 2 | NVDA | NVIDIA CORPORATION | 11.09M | $1.9B | 5.7% | ±0% |
| 3 | AAPL | APPLE INC | 6.58M | $1.7B | 4.9% | −1% |
| 4 | MSFT | MICROSOFT CORP | 3.36M | $1.2B | 3.7% | −1% |
| 5 | AMZN | AMAZON COM INC | 4.59M | $957M | 2.8% | +1% |
| 6 | GOOGL | ALPHABET INC | 2.77M | $796M | 2.3% | −1% |
| 7 | AVGO | BROADCOM INC | 2.17M | $671M | 2.0% | −1% |
| 8 | GOOG | ALPHABET INC | 2.26M | $649M | 1.9% | −2% |
| 9 | META | META PLATFORMS INC | 1.07M | $613M | 1.8% | +1% |
| 10 | VGK | VANGUARD INTL EQUITY INDEX F | 6.32M | $521M | 1.5% | ±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 $34.5 billion in assets. The fund runs a broad portfolio of 946 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
2 FILINGS
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
Q2 2025
Busy quarter
+35 buys · −0 exits · 868 changed