Overview
- The Invesco S&P 500 Equal Weight ETF (RSP) has outperformed the market‑cap S&P 500 over much of the past 25 years, a track record that investors are revisiting after heavy recent moves in mega‑cap tech.
- Seven mega‑cap firms — Apple, Alphabet, Amazon, Meta, Microsoft, Nvidia, and Tesla — now make up about one‑third of the S&P 500, so declines in those names have an outsized impact on market‑cap trackers.
- Roundhill’s Magnificent Seven ETF fell more than 13% recently while the rest of the S&P 500 rose roughly 2.5%, a split that highlights how equal‑weight funds avoid single‑name drags by rebalancing into smaller constituents.
- Practical differences between S&P 500 ETFs matter for investors: State Street’s SPYM charges the lowest fee at 0.02% while Vanguard’s VOO remains the largest by assets under management, leaving fee and liquidity as the main tiebreakers.
- Passive S&P 500 investing has grown massively from about $80 billion in 2006 to roughly $2.7 trillion today, and the index’s long‑term roughly 10% annualized return underpins why investors weigh concentration risk against low fees and simplicity.