The account that ties it all together — and what actually happens in the second after you tap "Buy."
You've met stocks and ETFs. A brokerage is the company — and the brokerage account is the home — that holds them all in one place (bonds too, coming up next) and connects you to the market.
Think of it as the hub: your cash sits there, and from there it can become shares of a company, an ETF, or a bond. One login, everything in one spot.
It feels instant, but a little relay race happens behind the scenes. You search a ticker, pick an amount, choose a market order (buy now) or a limit order (only at your price), and confirm. Then your brokerage routes it to a stock exchange, where a seller is matched to you — and after the trade settles, the shares are officially yours.
Run the pretend order below to watch the whole relay.
Simplified illustration of order flow — no real trade happens.
A decade ago every trade cost a fee, a commission. Today most big brokerages charge $0 on U.S. stocks and ETFs, which is a huge deal for someone starting with small amounts — your $10 isn't nibbled away before it's even invested.
When you pick a brokerage, the things that actually matter for a beginner: does it allow fractional shares, is it $0-commission, and (if you're under 18) does it offer a teen or custodial account — which you saw back in the Stocks lesson.
Plenty of brokerages let you buy fractional shares with $0 commission. A few popular ones to look at:
These are examples to explore, not recommendations — and there are plenty more (Robinhood, SoFi, Webull, Public, and others). Always check a broker's current features and fees when you sign up, and open any account with a parent if you're under 18.