Different transaction fees, too. On Schwab IRAs for example, there is a whitelist of mutual funds and ETFs with no fee to buy/sell (including their own funds, w

Different transaction fees, too. On Schwab IRAs for example, there is a whitelist of mutual funds and ETFs with no fee to buy/sell (including their own funds, which have really good expense ratios for passively managed, like .02% for SWPPX) but ones not on that list are a typical few-dollars commission for ETFs but many-tens-of-dollars for mutual funds.