JANE STREET GROUP, LLC is an institutional investment manager that files quarterly 13F reports with the SEC. As of Q1 2026, the fund manages $777.2B in reported equity holdings across 6792 positions. The largest holdings are SPY (16.7%), IWM (5.4%), TSLA (4.6%), NVDA (4.2%), GLD (4.2%). The portfolio is concentrated in Other (88.6%), Communication Services (4.6%), Technology (2.7%). Data sourced from SEC EDGAR 13F filings (CIK 1595888).