The Derivative

So You Want to Start an ETF? With Gavin Filmore of Tidal

Jul 16, 2026
Gavin Filmore, an ETF executive at Tidal who builds white-label and derivatives-based funds, discusses how ETFs moved from simple passive equity products to a boom in active and derivative strategies. He explains why flexibility mattered after the negative-oil shock, how market makers and regulation reshaped the space, what it takes to launch and scale an ETF, and which frontiers like prediction markets may come next.
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INSIGHT

Removing ETF Transparency Killed Semi Transparent Funds

  • Semi-transparent ETFs failed despite heavy development because they removed transparency, a core ETF value prop.
  • Market makers and end users didn't adopt them at scale, teaching caution for innovations that strip ETF fundamentals.
INSIGHT

Tidal Scaled By Betting On Active Derivative Funds

  • Tidal scaled from ~$4B to ~$75–80B AUM in five years by focusing on active and derivatives strategies.
  • About 85% of their funds are active and roughly 30% of AUM use derivatives, reflecting the industry's forward curve.
INSIGHT

Trading Desk Is The Secret Core Asset

  • Trading and capital markets are the backbone of modern ETF platforms; Tidal has built a large internal trading desk.
  • Tidal employs ~240 staff with ~80 traders and positions itself as possibly the largest ETF-only trading desk.
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