Amplify Small-Mid Cap Equity ETF (SMAP)

“Successful companies should have room to run into mid-cap without forced premature selling.”

SMAP is built on a simple principle: a fund focused on the small-and mid-cap space should not mechanically sell winners just because they have grown beyond an arbitrary size threshold. The Amplify Small-Mid Cap Equity ETF invests across companies with market capitalizations from $400 million to the full Russell 2500 universe, allowing positions to mature without artificial turnover. This is actively managed stock-picking, not passive indexing — Amplify’s sub-adviser, Curi RMB Capital, conducts intensive fundamental research to identify attractively priced businesses at various stages of corporate development.

Active selection across the SMID spectrum

SMAP’s 59 holdings span small-cap and mid-cap companies. That is a concentrated portfolio by ETF standards, but the concentration is deliberate. Curi RMB Capital uses a proprietary framework focused on economic returns — the actual cash profits a business generates relative to the capital invested — to screen for quality at attractive valuations. Rather than chasing pure growth or value as a formula, the process seeks companies with durable competitive advantages, sound management, and prices not yet fully reflecting their potential.

Top holdings such as Monolithic Power Systems, Curtiss-Wright, Pinnacle Financial Partners, West Pharmaceutical Services, and Stifel Financial reflect a mix of industrial, financial, healthcare, and technology exposures. The portfolio is not sector-locked; exposure varies based on where the fundamental case is strongest at any given time.

Diversification within concentration

With 59 positions, SMAP avoids the excessive diversification trap — holding hundreds of mediocre names — but maintains real portfolio diversification. The median position is perhaps 1.5–2% of assets, meaning company-specific risk is present but not terminal. Sector and geographic diversification naturally follows the small-and mid-cap opportunity set; the fund is not geographically diversified (it is U.S.-focused), but is otherwise broad.

Corporate lifecycle diversity is intentional. Curi RMB builds portfolios across companies at different maturity stages — some reaching inflection points, others consolidating strength, others with turnaround potential. This variation helps smooth returns; not all holdings move in lockstep.

Why active management here

The small-and mid-cap market is less efficiently priced than large-cap equity. Professional analysts have less coverage; information asymmetries persist; smaller companies have shorter track records and more opacity. These conditions favour active managers with the skill and resources to do ground-level research. SMAP’s 0.60% expense ratio is moderate for an actively managed U.S. equity fund, reflecting Amplify’s cost discipline and the fund’s recent launch (October 2024).

The economic return framework Curi RMB Capital applies is a rigorous alternative to pure growth or value labeling. Rather than sorting companies by earnings multiples or book-to-price ratios, the framework asks: what is this company actually earning on the capital it deploys? A business that returns 20% on invested capital is fundamentally different from one returning 8%, regardless of whether both trade at identical forward earnings multiples. This focus on capital efficiency and real returns attracts investors skeptical of traditional style-box approaches in the small-cap space.

How to research SMAP

Start with SMAP’s fund prospectus and Amplify’s website, which detail Curi RMB Capital’s investment philosophy and process. Compare SMAP’s trailing returns against the Russell 2500 Index and competitors such as the Vanguard Mid-Cap ETF (VO) and small-cap rivals. Track the portfolio’s turnover (what percentage of holdings turn over per year); high turnover increases trading costs and tax drag. Review quarterly holdings reports and commentary from Amplify to understand how the fund is positioned and why. Because this is an actively managed fund in a less-efficient part of the market, look at the manager’s longer-term track record (as Curi RMB, prior to the SMAP launch) to assess whether the edge is real or luck. Watch the fund’s expense ratio in future years; as assets grow, Amplify may lower the fee.