like you're 5
same pizza. this one just has a window where you can buy or sell a slice any minute the shop is open, instead of only at closing.
use it in a sentence
“i buy the same total-market ETF every payday and ignore it.”
good to know
exchange-traded fund. for a long-term investor the mutual fund vs. ETF choice is mostly a packaging question — fees and what's inside matter far more than how it trades. ETFs often have lower minimums, which is why a $50 first investment usually starts here.