Institutional Manager · CIK 0001068855
Asset Management One Co., Ltd.
TOKYO, M0 · File #028-07332
Latest AUM
$35.97B
Positions
939
Top-10 Concentration
59.5%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| ADD | NETFLIX INC | NFLX | +1,814,248 | +$170.8M | -$239.4M |
| NEW | SPDR SERIES TRUST | 78468R606 | +3,614,320 | +$85.6M | $0 |
| ADD | SERVICENOW INC | NOW | +455,066 | +$70.3M | -$82.3M |
| REDUCE | WORLD GOLD TR | GLDW | -795,548 | -$68.3M | +$32.0M |
| ADD | ISHARES GOLD TR | IAU | +886,737 | +$38.3M | +$1.4M |
| ADD | AMAZON COM INC | AMZN | +153,568 | +$35.6M | +$54.8M |
| ADD | MICROSOFT CORP | MSFT | +69,050 | +$33.6M | -$103.3M |
| ADD | BROADCOM INC | AVGO | +92,689 | +$32.4M | +$40.5M |
| ADD | NVIDIA CORPORATION | NVDA | +167,112 | +$31.4M | +$17.3M |
| ADD | COMFORT SYS USA INC | 199908104 | +22,269 | +$21.1M | +$1.7M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025939 pos · $35.97B
- 13F HOLDINGS REPORTQ/E Sep 2025946 pos · $34.51B
- 13F HOLDINGS REPORTQ/E Jun 2025944 pos · $31.90B
- 13F HOLDINGS REPORTQ/E Mar 2025966 pos · $28.91B
- 13F HOLDINGS REPORTQ/E Dec 2024952 pos · $29.11B
- 13F HOLDINGS REPORTQ/E Sep 2024965 pos · $28.10B
- 13F HOLDINGS REPORTQ/E Jun 2024962 pos · $26.14B
- 13F HOLDINGS REPORTQ/E Mar 2024973 pos · $25.95B
- 13F HOLDINGS REPORTQ/E Dec 2023990 pos · $22.46B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ISHARES TR | 464287200 | 3,235,273 | $2.24B | 10.62% |
| 2 | NVIDIA CORPORATION | NVDA | 11,103,101 | $2.09B | 9.92% |
| 3 | APPLE INC | AAPL | 6,647,103 | $1.82B | 8.64% |
| 4 | MICROSOFT CORP | MSFT | 3,405,573 | $1.66B | 7.88% |
| 5 | AMAZON COM INC | AMZN | 4,554,985 | $1.06B | 5.02% |
| 6 | ALPHABET INC | GOOG | 2,784,193 | $872.9M | 4.15% |
| 7 | BROADCOM INC | AVGO | 2,191,337 | $765.3M | 3.64% |
| 8 | ALPHABET INC | GOOG | 2,302,328 | $723.8M | 3.44% |
| 9 | META PLATFORMS INC | META | 1,059,217 | $697.7M | 3.31% |
| 10 | TESLA INC | TSLA | 1,321,071 | $606.8M | 2.88% |
| 11 | VANGUARD INTL EQUITY INDEX F | 922042874 | 6,294,468 | $526.7M | 2.50% |
| 12 | ISHARES INC | 46434G103 | 7,041,715 | $473.3M | 2.25% |
| 13 | JPMORGAN CHASE & CO. | VYLD | 1,414,815 | $457.9M | 2.18% |
| 14 | ELI LILLY & CO | LLY | 368,548 | $397.5M | 1.89% |
| 15 | VISA INC | V | 933,067 | $330.8M | 1.57% |
| 16 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 595,890 | $298.6M | 1.42% |
| 17 | JOHNSON & JOHNSON | JNJ | 1,251,398 | $259.7M | 1.23% |
| 18 | WELLTOWER INC | WELL | 1,295,970 | $245.7M | 1.17% |
| 19 | MASTERCARD INCORPORATED | MA | 417,382 | $241.2M | 1.15% |
| 20 | WALMART INC | WMT | 2,143,770 | $241.2M | 1.15% |