
The Invesco S&P MidCap Momentum ETF (XMMO) is designed to track the S&P Midcap 400 Momentum Index. It commits at least 90% of its total assets to the component securities of this index. The underlying index itself consists of 80 stocks selected from the S&P Midcap 400 Index. These are chosen based on their superior "momentum scores," which quantify each security's upward price movement relative to other eligible companies within the S&P Midcap 400. Both the ETF and its benchmark index are rebalanced and reconstituted twice a year.
Is XMMO's expense ratio expensive, average, or a steal for its category?
Pro reveals the verdict on a 5-tier spectrum calibrated against ICI 2025 industry averages, with strategy-aware bands so the comparison is meaningful.

The Invesco S&P MidCap Momentum ETF (NYSEARCA:XMMO) has quietly become one of the market's strongest ways to invest in AI up-and-comers.

Time and time again, investors will hear advisors and experts tell them how important it is to carefully check what securities a fund holds before adding it to their portfolios. This holds true for any investment strategy — whether it is a simple approach, a complex framework or a targeted play on midcap momentum.

Designed to provide broad exposure to the Mid Cap Growth segment of the US equity market, the Invesco S&P MidCap Momentum ETF (XMMO) is a passively managed exchange traded fund launched on March 3, 2005.

Invesco S&P MidCap Momentum ETF (XMMO) maintains a 'buy' rating despite a 31.60x trailing P/E and valuation risks. XMMO has delivered 20.36% YTD and 111.89% total return since June 2019, outperforming mid-cap peers. The fund's performance is driven by AI-related infrastructure and semiconductor stocks, with strong momentum and Wall Street sentiment.

Invesco S&P MidCap Momentum ETF has delivered a 24% YTD return, outperforming SPY by a wide margin. I reiterate a hold rating on XMMO, citing stretched momentum, elevated valuations, and limited near-term upside. XMMO's portfolio is heavily weighted toward Industrials and AI-linked infrastructure, with defensive sectors underrepresented, increasing risk.