Inside Active: Strategas’ Todd Sohn on the Active ETF Boom

Active ETFs are entering a 'golden age' driven by product innovation, lower structural frictions, mutual-fund-to-ETF conversions and potential ETF share classes. Expect sustained inflows and broader distribution for active managers, benefiting ETF issuers, market-makers and platforms and shifting product and flow dynamics at the sector level over coming quarters.

Analysis

Active-to-ETF conversion is not only a fee and distribution arbitrage; it rewires the revenue mix for large asset managers toward recurring, scale-exploitable streams (trading spreads, creation fees, custody floats) that compound over multi-year horizons. Expect the biggest beneficiaries to be firms with deep trading, custody, and ETF operational capabilities — every incremental $100bn of active assets that convert can meaningfully lift trading/custody revenue by mid-single-digit percent margin expansion, not just headline management fees.

A second-order effect is margin pressure on small- and mid-sized active boutiques: as the wrapper normalizes, marketing and operational scale become gatekeepers — boutiques that can’t offer ETF share classes or cross-sell through platforms will face a structurally higher cost of capital and widening redemption volatility during market stress. Simultaneously, market structure changes (higher proportion of in-kind flows, more intraday ETF activity) will concentrate liquidity and quoting benefits to market makers and custodians, compressing bid/ask for end investors but increasing intermediation revenue.

Key risks that could reverse the trend are regulatory intervention on conversion mechanics or new rules hindering ETF share-class innovation, underperformance cycles that prompt a wave of outflows from active strategies, and a fee war where issuers sacrifice economics to acquire shelf space. Time horizons: tactical flow-driven moves play out in months around product launches and approvals; structural reallocation across the industry will take 2–5 years to fully manifest as distribution, tech, and custody contracts reset.

Key Decisions for Investors

• Long BLK (buy 9–12 month call spread) — exposure to ETF wrapper scale and trading/custody revenue; set cost basis equal to premium with target +15–25% upside if accelerated conversions hit AUM targets, downside limited to premium paid.
• Long STT or BK (6–18 month exposure via shares) — play custody/operational leverage as ETF AUM rises; risk: margin compression if fee wars accelerate; target a 20%+ return over 12–18 months assuming 5–10% lift in custody/trading revenue.
• Long VIRT (3–9 month options) — tactical trade on higher intraday ETF volume and spreads capture; high gamma payoff if volatility in ETF flows increases, but position should be size-limited given execution risk.
• Pair trade: long BLK / short a small active-only manager with heavy mutual-fund AUM (e.g., BEN/AMG style) — directional capture of scale winners vs losers; risk/reward asymmetric if we see continued conversion wins, target 1.5–2x payoff over 12–24 months with stop-loss at 15% adverse move.