NerdWallet reviewed 17 online brokerages, a mix of established firms with the greatest market share and younger companies. Some of these are NerdWallet partners; some are not.
How we chose the winner:
NerdWallet evaluated each provider across the weighted criteria below to determine the winner for low costs:
Stock trading commissions (50%).
Options trading fees and per-contract costs (35%).
NerdWallet writers sent detailed questions to all reviewed companies. NerdWallet writers and editors also confirmed fees, rates, policies and other key features on each company's website.
