500 Reasons To Invest

Why an S&P 500 fund might be all you need for retirement.

No idea what this graph shows.
No idea what this graph shows.

The financial world loves to make investing feel complicated. If you’ve ever felt overwhelmed by investing—stock picking, market timing, hot tips, crypto debates, financial influencers yelling on TikTok, you’re not alone.

But the quiet truth for most people, is that investing in a low-cost S&P 500 fund is probably all you really need, and you could certainly do a lot worse. It’s not exciting or flashy like a crypto coin, but over time and with a bit of dedication it can be brutally effective.

What is an S&P 500 fund?

An S&P 500 fund isn’t just one investment; it’s ownership in 500 of the largest, most successful companies in the U.S. companies like Apple, Microsoft, Amazon, Google, and hundreds more across every major industry. You buy one fund and it buys into all of these companies for you.

  • Massive diversification.
  • Exposure to innovation and economic growth.
  • Automatic rebalancing as companies rise and fall.
  • A portfolio that evolves with the economy.

When a company declines, it is eventually dropped out of the index. When a new winner emerges, it’s added. All automatically, you don’t have to lift a finger.

The Data Is Unequivocal

Over long periods of time, the S&P 500 has delivered strong, consistent returns despite wars, recessions, political chaos, bubbles, and crashes. The market rewards patience, not cleverness. Consider some of the alternatives:

  • Most individual stock pickers underperform
  • Most actively managed funds underperform
  • Most investors who try to time the market underperform

Fees Matter

S&P 500 index funds from Vanguard, Fidelity, and Schwab are cheap, often charging fractions of a percent in annual fees. Fees compound just like returns and over decades they can eat into your nest egg and so picking a fund with the smallest fee can make a significant difference and mean hundreds of thousands of dollars over a lifetime. Paying more doesn’t buy better results. It just guarantees higher costs. Remember in finance “you get what you don’t pay for”.

Simplicity Is a Feature, Not a Bug

There is a temptation to make portfolios complex because it makes them feel productive, but it rarely helps you. It’s just noise. With an S&P 500 fund:

  • No research needed.
  • No constant monitoring.
  • No emotional trading.
  • No guessing which sector will outperform next.

The hardest part of investing isn’t picking the right asset, it’s sticking with it. You must invest regularly, ignore the headlines, and let time do the work. Simplicity helps make that possible.

Risky Business

Yes, the S&P 500 goes down sometimes. That’s the price of admission. Historically, every major downturn has eventually recovered and then gone on to new highs, so if you’re investing for the long term, volatility isn’t a flaw, it’s the reason returns exist.

  • You don’t need to be smarter than Wall Street.
  • You don’t need secret strategies.
  • You don’t need perfect timing.
  • You can invest for long-term goals (retirement, wealth building) with minimal effort and stress.

Could you add other assets? Sure. But for most investors, an S&P 500 fund checks every box. Sometimes the best investing strategy isn’t doing more, it’s doing less, but just better, and for longer.

Any of these funds are an excellent, low cost choice to get you started:

Schwab

  • Schwab S&P 500 Index Fund SWPPX.
  • Schwab US Large-Cap ETF SCHX, similar to the S&P 500 but an excellent equivalent.

Fidelity

  • Fidelity 500 Index Fund FXAIX.
  • iShares Core S&P 500 ETF IVV.

Vanguard

  • Vanguard 500 Index Fund VFIAX.
  • Vanguard S&P 500 ETF VOO.
  • iShares Core S&P 500 ETF IVV.