JonesTrading Launches JT20™ Index, a Concentrated Benchmark Tracking the 20 Largest U.S. Companies

LOS ANGELES and NEW YORK, May 4, 2026 /PRNewswire/ -- JonesTrading Institutional Services LLC ("Jones") today announced the launch of the JT20™ Index, a full market-capitalization-weighted equity index comprised of the 20 largest listed U.S. companies. The JT20™ Index was developed to...