What Is XMMO? Invesco S&P MidCap Momentum ETF

XMMO is Invesco S&P MidCap Momentum ETF, an ETF that tracks a US mid-cap equity index at a 0.35% expense ratio. XMMO tracks a US mid-cap equity index. It has traded since 2005, so its record spans more than one full cycle. The distribution yield is about 0.57%. At 0.35% it costs more than the typical mid-cap blend fund, nearer 0.23%. The ten largest positions are roughly 30% of assets, with CW the biggest at 4.0%.

XMMO is issued by Invesco and tracks a US mid-cap equity index, 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.

XMMO is weighted toward its largest constituents. As of August 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 XMMO exposure. Buy shares (or fractional shares) of XMMO 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 XMMO sits alongside other holdings that express the same thesis, with target weights you can rebalance toward. XMMO 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 XMMO is a good buy depends less on any single call and more on your time horizon and what you already hold: it tracks a US mid-cap equity index, 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 XMMO a buy?

XMMO gives you a US mid-cap equity index exposure in one ticker at a 0.35% expense ratio. Most investors use it as a core holding and layer more concentrated thematic portfolios on top.

Whether XMMO 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 XMMO a buy?

XMMO yields 0.57% as of August 2026, paid by passing through the dividends of its underlying holdings. For the payout schedule, history, and how the distributions are taxed, see XMMO dividend: yield and schedule.

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