Morgan Stanley’s new spot bitcoin ETF, MSBT, opened trading with about $33.9 million in day-one inflows and more than 1.6 million shares traded, figures the bank disclosed. With a 0.14% expense ratio, MSBT enters the category as the lowest-fee spot BTC ETF and immediately puts pricing and distribution back at the center of the flow debate.

Key Takeaways

• MSBT opened trading with more than 1.6 million shares traded and about $33.9 million in day-one inflows, based on figures disclosed by Morgan Stanley.
• The fund’s 0.14% expense ratio is described as the lowest among spot ETFs.
• MSBT tracks the CoinDesk Bitcoin Benchmark 4 PM New York Settlement Rate for its daily reference pricing.
• BlackRock’s IBIT remains the category heavyweight, with over $53 billion in assets since launching in January 2024.

MSBT Opens Trading With ~$34M in Day-One Inflows

Morgan Stanley’s spot bitcoin ETF began trading under ticker MSBT with more than 1.6 million shares traded and roughly $33.9 million (about $34 million) of day-one inflows, according to figures the bank provided. The source material describes the debut day inconsistently, referencing both Tuesday and Wednesday, so the clean takeaway for flow-watchers is the first full session’s print rather than the weekday label.

MSBT is built to be legible for benchmark-sensitive allocators. It tracks the CoinDesk Bitcoin Benchmark 4 PM New York Settlement Rate, anchoring how the fund marks its daily reference price. For traders comparing products, that benchmark choice matters because it defines the timestamp and methodology used for daily settlement reference versus other funds’ conventions.

The early numbers show immediate demand, but the market structure question is persistence. One-day creations can be launch-day positioning, marketing-driven allocations, or a one-off burst of liquidity. The more informative signal will be whether MSBT keeps printing net creations after the debut.

IBIT Sets the Bar: The $53B Incumbent MSBT Has to Dislodge

MSBT is entering a spot BTC ETF market where leadership is already entrenched. BlackRock’s iShares Bitcoin Trust (IBIT) is identified as the largest spot bitcoin ETF and has amassed over $53 billion in assets since launching in January 2024.

That scale gap matters for how any competitive shift will show up in the tape. Even if MSBT grows steadily, IBIT’s base is large enough that near-term share changes are more likely to appear first as incremental flow leakage or slower net inflows at the margin, not an immediate reshuffling of category leadership.