Fidelity FBTC faces narrowing margins and volatility risks

The Morgan Stanley Bitcoin Trust (MSBT) charges an annual expense ratio of 0.14%. This fee is lower than the 0.25% expense ratio held by both Fidelity’s FBTC and BlackRock’s IBIT. MSBT began trading on April 8, 2026, and it is the first spot Bitcoin ETF issued directly by a major U.S. bank. The 2024 approval of spot Bitcoin ETFs allowed institutional capital to enter the market without needing to manage private keys or wallets, which provided a legal path for big investors to get exposure to BTC. As of its June 30, 2026, filing, MSBT held 5,059 BTC and roughly $299 million in net assets. While FBTC is a leading choice for Fidelity users, MSBT is a direct challenge to the existing fee hierarchy. The era of fee waivers ended in July 2026 when VanEck’s HODL waiver expired. Smaller funds like Franklin Templeton’s EZBC or Bitwise’s BITB struggle to maintain market share against these giants. The Bitcoin ETF market is a winner-take-most business where scale and distribution drive investor decisions. Because BlackRock manages over $10 trillion in assets globally, IBIT attracts significant institutional attention.

Liquidity and custody concentration

Investors face different operational risks depending on their chosen provider. BlackRock’s IBIT is the leader with $87.1 billion in assets and the deepest liquidity in the category. Because IBIT trades roughly 60 million shares daily, it produces much tighter bid-ask spreads than smaller funds that struggle to maintain sufficient liquidity during volatile periods when investors decide to flee the market. Most Bitcoin ETFs rely on Coinbase or Coinbase-affiliated services for custody, which creates a concentration of risk in a single provider. Fidelity FBTC is a way to diversify this custody risk because it uses Fidelity Digital Assets for in-house self-custody, and you should evaluate how much slippage you can tolerate during a market crash. FBTC holds approximately $26 billion in assets, which places it in a strong second position.

The Bitcoin market concentration grows as ETFs buy Bitcoin to match inflows, which slowly shrinks the available supply. Investors also watch how much Bitcoin is held by these funds compared to the total supply.

High volatility and capital flight

Bitcoin price swings are a primary concern for FBTC holders because the cryptocurrency fell more than 45% from its all-time high during the February 2026 drawdown. Specifically, Bitcoin fell below $61,000 in a single session on February 5. In the second week of September 2026, investors withdrew nearly $450 million from Bitcoin ETFs over three consecutive days. The net outflows reached $46.6 million on September 8, $120.2 million on September 9, and $282.7 million on September 10, which totaled nearly $450 million over those three consecutive days of heavy selling. During that same period, the Fidelity Wise Origin Bitcoin Fund lost $33.6 million while the ARK 21Shares Bitcoin ETF lost $164.3 million. This capital flight occurred as Bitcoin prices moved toward $77,393. Bitcoin’s daily trading volume rose to $29.7 billion during the period of increased selling pressure, as Bitcoin’s market capitalization sits at $1.6 trillion.

However, Fidelity saw a massive rebound on September 18 when it supplied $310.7 million in net inflows. This single day of demand from FBTC was nearly 2.9 times the inflow seen in BlackRock’s IBIT. Such rapid shifts in money movement show that institutional interest can reverse instantly when technical signals change. Large price movements often force traders to exit positions through ETFs to avoid the technical hurdles of managing private keys, so can the current levels of liquidity withstand another massive drawdown?