Japan Science & Technology Agency holds a concentrated book of 9 stocks worth $4.8B as of Q1 2026 (disclosed May 8, 2026, a ~45-day 13F lag). This quarter they trimmed ISHR IBX USD INVGD CB ETF-UI. Their largest long position is ISHR IBX USD INVGD CB ETF-UI at 31% of the equity book.
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This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1948391/holdings"
Use Arkolith to show Japan Science & Technology Agency's latest holdings, largest changes, and filing provenance.
Top-heavy: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
0% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices, no cost basis
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Ishares TR IBOXX INV CP ETF | $927.1M | 8.51M | 19.3% | ▼−17% Reduced · −1.8M sh | |
| 2 | Ishares TR IBOXX HI YD ETF | $826.7M | 10.39M | 17.2% | —Held | |
| 3 | Ishares TR CORE S&P500 ETF | $553.8M | 847.8K | 11.5% | ▼−28% Reduced · −323K sh | |
| 4 | Invesco Exchange Traded FD T S&P500 EQL WGT | $546.0M | 2.84M | 11.3% | ▼−25% Reduced · −947K sh | |
| 5 | Ishares TR BROAD USD HIGH | $527.5M | 14.32M | 11.0% | —Held | |
| 6 | Ishares Inc CORE MSCI EMKT | $322.3M | 4.62M | 6.7% | ▲+51% Added · +1.6M sh | |
| 7 | SPDR Series Trust STATE STREET SPD | $277.6M | 2.90M | 5.8% | —Held | |
| 8 | Ishares TR JPMORGAN USD EMG | $234.8M | 2.50M | 4.9% | —Held | |
| 9 | Ishares TR 0-5YR HI YL CP | $188.3M | 4.45M | 3.9% | —Held | |
| 10 | Invesco QQQ TR UNIT SER 1 | $184.2M | 319.1K | 3.8% | ▼−21% Reduced · −84K sh | |
| 11 | Vanguard Index FDS GROWTH ETF | $153.3M | 351.0K | 3.2% | —Held | |
| 12 | Vanguard Index FDS VALUE ETF | $70.1M | 357.3K | 1.5% | —Held |
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 8, 2026 | 12 | $4.8B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 6, 2026 | 12 | $5.4B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 28, 2025 | 13 | $5.6B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 31, 2025 | 13 | $6.3B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 20, 2025 | 13 | $6.5B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jan 28, 2025 | 11 | $5.8B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 13, 2024 | 13 | $7.6B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 1, 2024 | 12 | $7.2B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 15, 2024 | 12 | $8.1B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | May 15, 2024 | 12 | $9.2B | 13F-HR/A |
| Q3 2023 | Sep 30, 2023 | Nov 15, 2023 | 11 | $8.8B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 8, 2023 | 11 | $8.7B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | May 9, 2023 | 11 | $9.2B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Feb 9, 2023 | 7 | $6.7B | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.