BlackRock’s Bitcoin ETF Will Be the World’s Biggest ETF in a Decade, Michael Saylor Says

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By James Van Straten | Edited by Parikshit Mishra Apr 25, 2025, 10:23 a.m. What to know : IBIT captured $1.3 billion of the total inflows over the past five trading days, helping drive bitcoin’s price from around $85,000 to $94,000. The annualized bitcoin ETF basis trade on the CME has surged to nearly 10%, signaling increased risk appetite as futures open interest rises alongside inflows. U.S. spot bitcoin (BTC) ETFs have recorded approximately $2.8 billion in net inflows over the past five trading days, contributing to driving the price of bitcoin higher from around $85,000 to $94,000. The iShares Bitcoin Trust (IBIT) has accounted for $1.3 billion of these inflows alone. Michael Saylor, Chairman of the largest listed bitcoin holder Strategy (MSTR), stated that "IBIT will be the biggest ETF in the world in ten years." Saylor made the comments at the Bitcoin Standard Corporation’s Investor Day. STORY CONTINUES BELOW Don't miss another story. Subscribe to the Crypto Long & Short Newsletter today . See all newsletters Sign me up By signing up, you will receive emails about CoinDesk products and you agree to our terms of use and privacy policy . To put this into perspective, IBIT currently has a market capitalization of $54 billion and on Thursday over $1.5 billion in volume. In comparison, the largest ETF by market cap, the Vanguard S&P 500 ETF (VOO), boasts a market capitalization of $593.5 billion, more than ten times that of IBIT. Eric Balchunas , Senior ETF Analyst at Bloomberg, acknowledged the possibility of IBIT becoming the largest ETF, though he emphasized that it would be extraordinary. “It’s possible, especially if IBIT starts taking in more cash than VOO, but that would require inflows well north of $1 billion a day—more likely in the range of $3 to $4 billion daily, to gain ground. In short, some extraordinary things would have to happen, but it’s possible,” Balchunas noted. Meanwhile, the annualized basis trade for bitcoin ETFs, investors going long the ETF and short the CME bitcoin futures, has risen to nearly 10%, up from 5% in early April. This increase, coupled with a 2,000 BTC rise in futures open interest over the past week, suggests that a portion of the net ETF inflows may not be purely directional bets, but part of the basis trade. Bitcoin ETF Saylor James Van Straten James Van Straten is a Senior Analyst at CoinDesk, specializing in Bitcoin and its interplay with the macroeconomic environment. Previously, James worked as a Research Analyst at Saidler & Co., a Swiss hedge fund, where he developed expertise in on-chain analytics. His work focuses on monitoring flows to analyze Bitcoin's role within the broader financial system. In addition to his professional endeavors, James serves as an advisor to Coinsilium, a UK publicly traded company, where he provides guidance on their Bitcoin treasury strategy. He also holds investments in Bitcoin, MicroStrategy (MSTR), and Semler Scientific (SMLR). X icon About About Us Masthead Careers CoinDesk News Crypto API Documentation Contact Contact Us Accessibility Advertise Sitemap System Status DISCLOSURE & POLICES CoinDesk is an award-winning media outlet that covers the cryptocurrency industry. Its journalists abide by a strict set of editorial policies . CoinDesk has adopted a set of principles aimed at ensuring the integrity, editorial independence and freedom from bias of its publications. CoinDesk is part of the Bullish group, which owns and invests in digital asset businesses and digital assets. CoinDesk employees, including journalists, may receive Bullish group equity-based compensation. Bullish was incubated by technology investor Block.one. Ethics Privacy Terms of Use Cookie Settings Do Not Sell My Info © 2025 CoinDesk, Inc. X icon