The first investment is the hardest. The second is easier. The hundredth becomes routine. That's the goal.
What Should You Buy First?
You're staring at your funded account. There are thousands of stocks. Where do you even start? Don't overthink it.
Many beginners start with an S&P 500 index fund. This is educational information about a common approach, not a recommendation.
Examples of S&P 500 Index Funds
Multiple providers offer similar products tracking the same index. Research and compare options based on your personal criteria. This is not a recommendation.
Why an S&P 500 fund? Because with one purchase, you own tiny pieces of the 500 largest US companies - Apple, Microsoft, Amazon, Google, and 496 more. Instant diversification. You're not betting on one company; you're betting on the entire US economy.
What characteristic do S&P 500 index funds provide?
Step-by-Step: Making Your First Purchase
Here's exactly what to do. Follow along in your broker's app:
Search for your investment
Find the search bar in your app. Type the name or ticker of the fund you chose. You can also search “S&P 500” and it will show related funds. Tap on the result to see the investment page.
Tap “Buy”
On the investment page, you'll see price charts, news, and a Buy button (usually green or blue). Tap it. This opens the order screen.
Choose how much to invest
You'll see options to enter:
Dollars
“I want to invest $100” - you get fractional shares. Best for beginners.
Shares
“I want to buy 1 share” - you need enough for at least 1 share.
Pick “Dollars” and enter your amount (like $100). This way you invest exactly what you want.
Select Order Type
You'll see options like “Market Order” and “Limit Order.” Here's what each means:
Market Order = Executes immediately at the current market price.
Limit Order = Only executes if the price reaches your specified level.
Each has tradeoffs. Market orders prioritize speed; limit orders prioritize price control.
Review and Confirm
You'll see a summary: what you're buying, how much, and the estimated price. Double-check the amount. Then tap Confirm or Submit Order.
Congratulations - You're an Investor!
Your order executes almost instantly during market hours. You'll see the investment in your portfolio within seconds. You did it.You own a piece of the 500 largest US companies.
Market Order vs. Limit Order
What's the difference between these order types? Here's the simple explanation:
Market Order
“Buy it now at whatever price it is.”
- + Executes immediately
- + Guaranteed to fill
- - Price might be slightly different from what you saw
Common use: When speed matters more than exact price
Limit Order
“Only buy if the price is $X or lower.”
- + You control the maximum price
- + Protects against price spikes
- - Might not fill if price doesn't reach your limit
Common use: When price control matters more than speed
Understanding order types
For large, liquid index funds, the price difference between order types is typically small. Market orders prioritize speed; limit orders prioritize price control. Each has tradeoffs depending on your situation. This is educational information — not a recommendation.
Which order type executes immediately at the current market price?
What Happens After You Buy
Order confirmation
You'll get a confirmation showing exactly what you bought, at what price, and how many shares (including fractional).
It appears in your portfolio
Within seconds, you'll see your investment in your Holdings or Portfolio tab. You can watch it go up and down with the market.
Settlement (T+1)
The trade “settles” in 1 business day - meaning the transaction is officially complete. You don't need to do anything; it's automatic.
You can buy more anytime
Want to add more later? Just repeat the process. There's no limit to how often you can buy or sell.
Market hours matter
The US stock market is open Monday-Friday, 9:30 AM - 4:00 PM Eastern Time. Market orders execute instantly during these hours. If you place a market order outside these hours, it will execute when the market opens next.
What Now?
You made your first investment. That's huge. Most people never get this far. You did it.
But one investment isn't a complete strategy. In the next lesson, we'll build on this and show you how to create a simple portfolio - one that can grow with you for decades.