Inside the Multi-Year Quest to Create a Bitcoin ETF

Episode Summary

Executive Summary: The episode explains why launching a Bitcoin ETF has been so difficult, using Greg King’s attempt at Rex Shares as a case study. Rachel Evans outlines the ETF machinery—custody, authorized participants, and arbitrage—and King describes how Bitcoin’s commodity status, futures contracts, and evolving market infrastructure created a path forward, even as SEC concerns delayed approval.

Main Topics: How ETFs actually work (Priority: 5/5): Rachel Evans breaks down the core mechanics of ETFs: custody, authorized participants, and market makers. She explains how APs create/redemptions and how arbitrage keeps ETF prices aligned with underlying assets. Why Bitcoin ETFs are hard to approve (Priority: 5/5): The SEC has been cautious because Bitcoin raises custody, valuation, and arbitrage concerns, especially for products holding physical Bitcoin or private keys. Greg King's ETF background and Rex Shares strategy (Priority: 4/5): King describes his path from Barclays and Credit Suisse to founding Rex Shares, emphasizing a focus on democratizing access to new asset classes through ETF products. From physical Bitcoin to futures-based structures (Priority: 5/5): King explains that the 2015 CFTC decision treating Bitcoin as a commodity suggested a futures-based ETF structure could be more workable than holding Bitcoin directly. The 2017 Bitcoin ETF filing frenzy and SEC response (Priority: 4/5): As Bitcoin surged, many firms filed ETF applications, prompting the SEC to slow the process and ask broad questions about valuation, custody, and market mechanics. Infrastructure building blocks for crypto ETFs (Priority: 4/5): The discussion highlights how market makers, futures exchanges, indices, and custodians are part of the infrastructure needed before a viable crypto ETF can exist. Rex Shares' broader blockchain ETF effort (Priority: 3/5): Beyond Bitcoin, Rex Shares also pursued a blockchain ETF with active management, seeking exposure to companies with material blockchain or crypto-related activity.

Key Arguments: An ETF is not just an idea; it requires regulator approval plus functioning custody, AP, and market-making infrastructure. Bitcoin is operationally difficult for an ETF because direct custody of private keys is riskier and less mature than futures custody. The CFTC’s designation of Bitcoin as a commodity created a more realistic path to an ETF through regulated futures. Market makers and arbitrageurs are essential because they keep ETF shares close to net asset value. The SEC’s reluctance stemmed less from the headline idea and more from practical concerns about how the product would actually function. The explosive interest in late 2017 did not eliminate the structural hurdles; it just intensified the filing competition. Smaller ETF firms can survive by launching niche products rather than needing a giant blockbuster fund. A blockchain ETF may be easier to launch than a direct Bitcoin ETF because it gives equity exposure to the ecosystem rather than direct crypto exposure.

Data Points: Duration of Stock Movers reports: 5 minutes or less - Promotional segment describing Bloomberg's Stock Movers audio reports ETF company experience: 14 years or so - Greg King describing the length of his ETF industry career Bitcoin ETF filing count: more than 17 - King describing how many ETF filings were outstanding during the 2017 rush Year Bitcoin price run-up attracted King’s attention: late 2013 - King recounts when he first bought Bitcoin after reading about the rally CFTC ruling timing: 2015 - King says the regulatory turning point came when the CFTC said Bitcoin was a commodity Bitcoin futures launch timing: December 2017 - King notes the futures finally launched then, helping create an ETF path SEC questions in industry letter: 38 different questions - Rachel Evans references the SEC’s January letter to the industry about Bitcoin fund concerns Number of Bloomberg journalists and analysts cited: 3,000 - Promotional segments for Bloomberg audio products

Pivotal Quotes: "the best way to understand something is to try to do it yourself" — Tracy Alloway: Opening rationale for the episode’s hands-on, process-focused approach "the SEC is a little bit concerned about how that might work with Bitcoin" — Rachel Evans: Explaining why ETF structure and Bitcoin mechanics create regulatory obstacles "we thought that this cleaned up several of those issues really pretty nicely" — Greg King: Describing why a futures-based structure seemed preferable to a physical Bitcoin ETF

Implications: The episode shows that crypto ETFs depend as much on plumbing and regulation as on investor demand. For future products, the key bottlenecks are custody, futures liquidity, AP participation, and SEC comfort with market structure.