Jim Simons - Renaissance Technologies LLC Investment Strategy & Portfolio Analysis
How Renaissance Technologies LLC allocates capital, manages risk, and constructs its portfolio — based on SEC 13F filings.
According to the SEC 13F filed on Aug 13, 2026, Jim Simons's Renaissance Technologies LLC portfolio reflects a index-style investor approach across 2644 reported 13F positions as of quarter-end Jun 30, 2026. Portfolio returns are distributed across holdings, with the top five positions representing approximately 8% of total exposure. Across 2644 reported holdings, economic exposure is broadly distributed across technology, healthcare, and consumer cyclical companies without dominant single-name concentration. Exposure to high-growth and technology-oriented segments is moderate relative to peers, with performance weighted across healthcare, consumer discretionary, and communication services. The portfolio maintains moderate turnover, consistent with periodic rebalancing rather than a fully static book. Distinctive traits include Moderate Turnover, Broadly Diversified, Economically Diversified.
Investment Style
Value, growth, quality, and behavioral classification from latest 13F holdings.
Primary type: Index-Style Investor
Traits: Moderate Turnover, Broadly Diversified, Economically Diversified, Structurally Diversified
Turnover profile
Active
Holding horizon
Moderate
Portfolio Construction
Concentration and position sizing in the latest filing.
Portfolio construction is lowly concentrated: top three names represent 5.1% of assets, top five 7.7%, and the largest single position is 2.0%.
Top 3 weight
5.1%
Top 5 weight
7.7%
Top 10 weight
12.5%
Largest position
2.0%
Top holdings: NVIDIA Corporation, Meta Platforms, Inc., Intel Corporation, United Therapeutics Corporation, Palantir Technologies Inc. — view full holdings
Sector Preferences
Where capital is allocated by sector.
Capital is tilted toward Technology and Healthcare, with 12 sectors represented in the latest filing.
Leading sectors: Technology, Healthcare, Consumer Cyclical
Risk Framework
Concentration, diversification, and turnover tolerance.
This investor accepts low single-name risk (largest position 2.0%, top ten 12.5%) and high economic diversification (HHI 0.00). Turnover tolerance maps to a active profile.
Largest position
2.0%
Top 10 weight
12.5%
Max sector
21.5%
Diversification
High
Strategy Evolution
How the strategy changed between the two most recent filing periods.
Mar 31, 2026 → Jun 30, 2026
- Position count decreased from 2757 to 2644 (-113 names).
- Top-five concentration rose from 7.1% to 7.7%.
- Largest holding changed from United Therapeutics Corporation to NVIDIA Corporation.
- Quarter-over-quarter portfolio weight turnover: 33.6%.
For trade-level changes, see the Activity page. View activity.
Similar Investors
Peer group with comparable portfolio behavior.
Similar-investor comparisons are coming soon.