The Ultimate Guide to Investing in S&P 500 ETFs

Investing in S&P 500 ETFs is honestly the one money move I don’t completely regret, and trust me, I’ve made plenty of dumb ones. Like, seriously, I’m sitting here in my apartment in Austin on this chilly December morning in 2025, half-empty cold brew on the desk, dog snoring on the couch, and I’m looking at my portfolio finally doing okay because I finally shut up and started investing in S&P 500 ETFs consistently. Took me way too long to get here. I used to chase hot stocks like a total idiot—remember when I YOLO’d into some random EV company in 2021 because Reddit said so? Yeah, that aged like milk. Investing in S&P 500 ETFs https://www.spglobal.com/spdji/en/indices/equity/sp-500/

Why I Finally Started Investing in S&P 500 ETFs (And Stopped Being a Clown)

Look, I’m not some finance bro. I’m just a regular dude who got tired of watching my savings sit in a checking account earning basically nothing while inflation ate it alive. Back in 2022, after the market tanked and I panicked sold everything (classic me), a buddy basically grabbed me by the shoulders and said, “Bro, just buy VOO and chill.” I ignored him for another year because I thought I was smarter than the market. Spoiler: I wasn’t. https://www.blackrock.com/us/individual/products/239726/ishares-core-sp-500-etf

Eventually I caved. Started small—$200 a month into Vanguard’s S&P 500 ETF (VOO) because the expense ratio is stupid low (like 0.03%, come on). And you know what? It felt boring. Like, embarrassingly boring. No dopamine hits from meme stocks pumping 20% in a day. But now, three years later, that boring choice is up way more than any of my “genius” picks ever were.

Phone showing auto VOO investment setup.
Phone showing auto VOO investment setup.

The Best S&P 500 ETFs I Actually Use (No Sponsored BS) Investing in S&P 500 ETFs

There’s basically three big ones everyone fights about online, and I’ve owned all of them at some point because I can’t leave well enough alone:

  • VOO (Vanguard S&P 500 ETF) – My main squeeze now. Lowest fees, Vanguard’s not-for-profit structure keeps costs down. I moved everything here after Fidelity kept tempting me with fractional shares of random stuff I didn’t need.
  • SPY (SPDR S&P 500 ETF Trust) – The OG, super liquid if you’re into options trading (I’m not anymore). Higher expense ratio though—0.09% feels criminal when VOO exists.
  • IVV (iShares Core S&P 500 ETF) – Basically tied with VOO. I had some here when I was at Schwab because they pushed it hard.

Pro tip from someone who’s switched brokers three times chasing signup bonuses: Just pick the one with the lowest expense ratio available in your account and stop overthinking it. (Here’s Vanguard’s official comparison if you wanna nerd out: https://investor.vanguard.com/investment-products/etfs/profile/voo) https://www.ssga.com/us/en/intermediary/etfs/spdr-sp-500-etf-trust-spy

My Biggest Mistakes Investing in S&P 500 ETFs (So You Don’t Repeat Them)

  • Waiting for “the dip.” Bro, I sat in cash through most of 2023 waiting for a crash that never came. The market climbed like 25% while I timed nothing.
  • Selling during the 2022 bear market. I had a tiny position in S&P 500 ETFs back then and panicked out at the bottom because headlines scared me. Lost out on the entire recovery.
  • Trying to be cute with “better” versions like leveraged S&P ETFs. Don’t. Just don’t. I got wrecked in 2020 playing with UPRO.

The data backs this up—according to this long-term study from Vanguard, lump-sum investing beats dollar-cost averaging about 68% of the time, but I still DCA because my paycheck isn’t a lump sum, ya know? (Link: https://www.vanguard.com/pdf/ISGLS.pdf)

How I Actually Invest in S&P 500 ETFs Right Now (My Lazy Setup) Investing in S&P 500 ETFs

Every payday, automatic transfer → brokerage → buy VOO. That’s it. No checking the market, no watching CNBC, no doomscrolling finance Twitter (er, X). I turned off all price alerts because they just made me anxious.

If you’re just starting:

  1. Open a brokerage (I use Fidelity now because their app doesn’t suck and zero commissions).
  2. Set up automatic investing—most let you buy fractional shares now, so even $50 works.
  3. Pick your S&P 500 ETF (VOO, SPLG, or IVV—literally doesn’t matter that much).
  4. Forget about it for 10+ years. Investing in S&P 500 ETFs
Piggy bank amid crumpled papers, red chart.
Piggy bank amid crumpled papers, red chart.

The Part Where I Admit Investing in S&P 500 ETFs Still Stresses Me Out Sometimes

Even now, when the market drops 5% in a week, my stomach still knots up. I hate seeing red. But I’ve learned to zoom out—literally, I only check my portfolio quarterly now. And every single time, despite the noise, investing in S&P 500 ETFs has been up over any 10-year period historically. (S&P’s own data if you wanna see the chart: https://www.spglobal.com/spdji/en/indices/equity/sp-500/#overview)

Anyway, I’m rambling. Point is: I’m not rich yet, but I’m finally on a path that doesn’t rely on me being a genius. And that feels pretty damn good for once. Investing in S&P 500 ETFs https://investor.vanguard.com/investment-products/etfs/profile/voo

If you’re sitting there overcomplicating this like I did for years—just start. Open an account today, throw whatever you can at an S&P 500 ETF, and go touch grass. Future you will thank current you, I promise. Investing in S&P 500 ETFs

What about you? Already investing in S&P 500 ETFs or still chasing the next hot thing? Drop a comment—I actually read them.

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