Dave Nadig: The ETF Bubble Nobody is Talking About

May 8, 2026

Dave Nadig, President and Director of Research at ETF.com and longtime ETF analyst, warns about structural strains as thousands of mutual funds convert to ETFs. He breaks down plumbing limits, proliferation risks from single-stock and leveraged products, private credit/PE liquidity traps, prediction-market and tokenization pitfalls, and where real innovation meets extractive gimmicks.

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INSIGHT

Private Credit ETFs Can Hide Long Liquidity Lags

Retail private credit and private equity ETFs risk mismatched liquidity and unexpected illiquidity for investors.
Many private-credit ETFs hold little private debt and offer limited quarterly liquidity, so redemptions can take years under stress.

INSIGHT

Illiquid Holdings Create Valuation Shenanigans

Structures embedding illiquid holdings (closed-end funds, SPVs for SpaceX) create valuation and redemption opacity.
Dave highlights gaps between reported NAVs and private share repricings that invite 'shenanigans' around valuations.

INSIGHT

K-Shaped ETF Innovation Creates Top And Junk Products

ETF innovation is K-shaped: high-quality institutional tools coexist with extractive retailized products like ubiquitous levered single-stock ETFs.
Prediction market ETFs add single-counterparty risk because Kalshi is the sole venue for contracts, beta, and settlement.

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The ETF industry has never been more powerful — or more crowded. Dave Nadig, President & Director of Research at ETF.com, joins Pierre Daillie and Mike Philbrick for a no-holds-barred conversation on the structural risks building beneath the surface of the world's most successful financial innovation. From a potential flood of mutual fund conversions to single-stock leverage ETFs, prediction market shenanigans, private credit illiquidity traps, tokenization timelines, AI's impact on the investment industry, and the quiet erosion of the ETF's greatest strength — simplicity — this is the ETF conversation the industry isn't having.

⏱ Chapters

00:00 — Introduction: Dave Nadig, President & Director of Research, ETF.com 00:46 — The Mutual Fund-to-ETF Conversion Flood: 5,000 Funds in the Pipeline 03:12 — The Plumbing Stress Test: Market Makers, Lead Market Makers & Capacity Limits 05:40 — Too Many Tickers: When Choice Becomes Paralysis 07:51 — The Case FOR Mutual Funds: Where the Structure Still Wins 10:34 — Private Credit ETFs: Retail Bag-Holding at the End of the Cycle? 13:06 — Private Equity ETFs, SpaceX Shenanigans & Liquidity Illusions 18:02 — ETF Proliferation: More Tickers Than Stocks 19:50 — The K-Shaped ETF Innovation Curve: Institutional Genius vs. Levered Junk 22:26 — Prediction Markets, Kalshi & Single-Counterparty Risk 25:04 — AI in Investment Management: Hype vs. Genuine Edge 27:18 — Tokenization: When Does It Actually Matter for Retail? 29:38 — Atomic Settlement, Blockchain, and the DTCC's Big Project 33:27 — Crypto, Prediction Markets & Where the Money Is Really Going 36:11 — 24/7 Equity Markets: Opportunity or Chaos? 45:25 — The Kitchen Drawer Metaphor: Good Tools vs. Junk Drawer ETFs 48:00 — Covered Call ETFs & the Yield Illusion: Total Return Is the Litmus Test 50:40 — How to Spot Extractive Products vs. Genuine Innovation 54:52 — Why Dave Came Back to ETF.com — and Why He Won't Stay in a Box 01:00:02 — ETF.com 3.0: Content, Pop-Up Events & the ETF Beach House 01:03:02 — The ETF Industry's Obligation: Keeping It From Going Extractive 01:07:13 — Where to Find Dave Nadig: ETF Zoo Podcast, Excess Returns & More

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