What Is RSP? Invesco S&P 500 Equal Weight ETF

RSP is Invesco S&P 500 Equal Weight ETF, an ETF that tracks S&P 500 Equal Weight at a 0.20% expense ratio. Holds every S&P 500 constituent at roughly the same weight and rebalances quarterly, so a handful of megacaps do not drive returns the way they do in VOO or SPY. That gives more exposure to the average large-cap company at a higher 0.20% fee.

RSP is issued by Invesco and tracks S&P 500 Equal Weight, so a single ticker gives you the whole portfolio of underlying holdings weighted by the index's methodology rather than by any active stock-picking.

RSP is weighted toward its largest constituents. As of mid-2026, the top holdings are:

The remaining holdings make up the balance of the fund, with weights tapering off below the top names. Because the index reconstitutes on a rolling basis, the roster stays current without active management. Each ticker above links to its individual stock guide in Walnut.

There are three common ways to get RSP exposure. Buy shares (or fractional shares) of RSP directly at any major broker that lists it. Hold it as a core position and layer more concentrated ideas on top. Or build it into a thematic portfolio in Walnut, so RSP sits alongside other holdings that express the same thesis, with target weights you can rebalance toward. RSP trades like a stock during market hours, so you buy it the same way you would any listed share.

New to buying funds? See how to buy an ETF, step by step.

Whether RSP is a good buy depends less on any single call and more on your time horizon and what you already hold: it tracks S&P 500 Equal Weight, so the real question is whether you want that exposure in your mix and at what weight. We walk through valuation, concentration, and what would have to be true for it to outperform from here in is RSP a buy?

RSP gives you S&P 500 Equal Weight exposure in one ticker at a 0.20% expense ratio. Most investors use it as a core holding and layer more concentrated thematic portfolios on top.

Whether RSP is worth buying today depends more on your time horizon and what you already hold than on any single call. We walk through valuation, concentration, and what would have to be true for it to outperform from here in is RSP a buy?

RSP yields ~1.49% as of mid-2026, paid by passing through the dividends of its underlying holdings. For the payout schedule, history, and how the distributions are taxed, see RSP dividend: yield and schedule.

RSP holds the same S&P 500 companies but weights them equally, while VOO weights by market cap, so VOO is dominated by a few megacaps and RSP is not. RSP gives more exposure to the average large-cap and less single-name risk at a higher 0.20% fee; VOO is cheaper and rides the biggest winners harder. Read the full side-by-side in RSP vs VOO.

New to funds like RSP? Start with what an ETF is, then how to buy an ETF, or browse the full guide to ETF investing.