The S&P 500 is the closest thing investing has to a default answer for beginners. One purchase gives you a slice of 500 of the largest US companies — and historically that basket has compounded around 10% per year over long horizons.
What the S&P 500 is
The S&P 500 is an index — a list — of roughly 500 of the largest publicly traded US companies, weighted by market value. Apple, Microsoft, Amazon, JPMorgan, ExxonMobil, and hundreds of others all sit inside it. You can't buy "the index" directly, but you can buy a fund that holds every stock in it.
Why beginners choose it
- Instant diversification. One purchase = 500 businesses across every major sector.
- Extremely low cost. The best S&P 500 ETFs charge about $3 per year on every $10,000 invested.
- Strong long-term record. Roughly 10% nominal / 7% real annualised over 90+ years.
- Nothing to research. You don't have to pick winners — you own the whole market.
Picking an S&P 500 ETF
The three most popular choices all track the same index:
- VOO — Vanguard S&P 500 ETF. Expense ratio ~0.03%.
- IVV — iShares Core S&P 500. Expense ratio ~0.03%.
- SPY — SPDR S&P 500. Expense ratio ~0.09%. Most liquid, but slightly pricier.
For long-term investing, VOO or IVV is the standard default. You will not notice the difference between the two.
The steps to invest
- Open a brokerage account. Fidelity, Schwab, Vanguard, Robinhood, and most banks all work. Choose one with $0 commissions and fractional shares.
- Fund the account. Link your bank and transfer whatever you can start with — even $50 is fine.
- Search the ticker. Type
VOO(orIVV/SPY) into the broker's search bar. - Place a buy order. Choose "Market order" for the simplest execution. Enter the dollar amount or number of shares, then confirm.
- Hold. That's the whole plan. Do not check the price daily.
Automating your buys
The single biggest predictor of long-term success is consistency. Set up an automatic monthly transfer from your bank to your broker, and — where the broker supports it — an automatic recurring buy of your chosen ETF. This turns investing from a decision you have to make into a habit that runs itself.
Common pitfalls
Frequently asked questions
How much money do I need to start?
Most brokers let you buy fractional shares, so you can start with $5–$10. What matters more than the starting amount is investing consistently over time.
VOO, SPY, or IVV — which is best?
All three track the S&P 500 closely. VOO (Vanguard) and IVV (iShares) have the lowest expense ratios (around 0.03%). SPY is the oldest and most liquid, which matters for active traders but not for long-term investors.
Should I invest all at once or spread it out?
Historically, investing a lump sum has outperformed dollar-cost averaging about two-thirds of the time. But if a large drop right after investing would make you panic-sell, spreading it over 6–12 months is a reasonable behavioral compromise.
Is the S&P 500 safe?
It's diversified across 500 large US companies, but it's still equities — expect 30–50% drawdowns in bad bear markets. It's 'safe' only in the sense that, over 15+ year horizons, it has always recovered and produced positive real returns.
Put this into practice
Open a real ticker, ask Auri your own questions, and track what you learn — all in one calm workspace.