JFIN Jiayin Group Inc.
Jiayin Group Inc. (JFIN) Institutional Ownership
What the institutions did with JFIN last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended September 30, 2026.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| RAMSEY QUANTITATIVE SYSTEMS | 84.7K | 38.2% |
| DIMENSIONAL FUND ADVISORS LP | 81.5K | 36.8% |
| Ariadne Wealth Management, LP | 18.7K | 8.4% |
| SmartHarvest Portfolios, LLC | 14.9K | 6.7% |
| ACADIAN ASSET MANAGEMENT LLC | 9.8K | 4.4% |
| Allworth Financial LP | 5.0K | 2.2% |
| Tidemark, LLC | 4.7K | 2.1% |
| SIMPLEX TRADING, LLC | 2.0K | 0.9% |
| Larson Financial Group LLC | 270 | 0.1% |
| Caitong International Asset Management Co., Ltd | 78 | 0.0% |
| NISA INVESTMENT ADVISORS, LLC | 9 | 0.0% |
| SBI Securities Co., Ltd. | 1 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| RAMSEY QUANTITATIVE SYSTEMS | Increased | 41.4K | 84.7K | +43.3K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 100.6K | 81.5K | -19.1K |
| Leonteq Securities AG | Sold Out | 15.0K | 0 | -15.0K |
| SmartHarvest Portfolios, LLC | New | 0 | 14.9K | +14.9K |
| First Command Advisory Services, Inc. | Sold Out | 2.7K | 0 | -2.7K |
| SIMPLEX TRADING, LLC | Increased | 131 | 2.0K | +1.9K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 9.0K | 9.8K | +808 |
| Russell Investments Group, Ltd. | Sold Out | 310 | 0 | -310 |
| Caitong International Asset Management Co., Ltd | New | 0 | 78 | +78 |
| Allworth Financial LP | Increased | 5.0K | 5.0K | +30 |
| NISA INVESTMENT ADVISORS, LLC | New | 0 | 9 | +9 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.