John Rogers runs Ariel Investments, an asset manager overseeing $9.26B in disclosed equity holdings (SEC CIK 0000936753). The latest portfolio (2025Q4) discloses 108 positions across 11 sectors, with the largest positions in MSGE, AMG and NORWEGIAN CRUISE LINE HLDG L. On a mark-to-market basis the tracked portfolio has returned 21.4% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.
Methodology:TWR tiles chain-link quarterly mark-to-market across consecutive filings (GIPS-compliant) ·actual tiles use a real 13F snapshot marked to today ·backtest tiles re-price the current book to historical prices.
Performance overview
We mark John Rogers (Ariel Investments)'s disclosed portfolio to current market prices and compare its growth against the S&P 500 (SPY). John's portfolio is 21.4% over the last 12 months · 119.4% since 2016Q1.
Portfolio growth vs SPY
Rebased to 100 at 2021Q2 · through 2025Q4
John Rogers
+47.1%
SPY
+69.5%
Alpha
-22.4pp
Portfolio line is the GIPS-compliant time-weighted return chain-linked across the manager's quarterly 13F filings — unaffected by capital flows. Quarters with insufficient held-through coverage are skipped, which can briefly flatten the line.