What should my first investment be?
A low-cost fund that tracks the whole US market or the S&P 500. It gives you 500 companies in one purchase, costs almost nothing to own, and is very hard to regret.
A broad index fund. Specifically, one that tracks the S&P 500 or the total US stock market, with an expense ratio under 0.1 percent. That single purchase gives you a piece of Apple, Microsoft, Amazon, banks, hospitals, oil companies and five hundred others, so you never have to be right about any one of them.
People resist this because it feels unexciting compared to picking a stock. That is precisely the point. Your first investment is where you learn how your account works, how it feels when the balance drops 5 percent in a week, and whether you can leave it alone. A fund is the safest place to learn all that.
If you want a single stock as well, buy a small slice of a company you already understand, with money you would happily lose. Keep it to a small fraction of the total so that if it halves, your plan is unaffected. Treat it as tuition, not as the strategy.
What to avoid for a first buy: anything a stranger online is excited about, anything with "leveraged" or "3x" in the name, and penny stocks. All three are where beginners learn expensive lessons.
Informational only, not financial advice. Updated September 4, 2026.
Get the free market brief
Top stories and analysis, summarized. No spam, unsubscribe anytime.