Core Insights - U.S. spot Bitcoin ETFs experienced a significant capital influx of $368.25 million, marking the largest single-day inflow since August 8, indicating renewed institutional investor confidence [1] - Fidelity's FBTC led the inflows with $156.50 million, followed by Ark Invest and 21 Shares' ARKB with $89.47 million, with all twelve spot Bitcoin ETFs recording inflows [1] Institutional Activity - The increase in institutional buying aligns with key macroeconomic reports, including Nonfarm Payrolls revisions, Producer Price Index, and Consumer Price Index, which are crucial for the Federal Reserve's interest rate decision on September 17 [2] - Investors are repositioning ahead of the Fed's rate decision, reflecting a strategic shift in response to anticipated monetary policy changes [2] Market Trends - A modest quarter-point rate cut was expected, but the potential for a half-point cut is generating increased interest in the crypto market [3] - Ethereum ETFs experienced a negative net flow of $96.69 million, indicating a shift in investor sentiment back towards Bitcoin as a safer investment [3][4] Volatility and Price Movements - Short-dated implied volatility for Bitcoin and Ethereum surged by 15%, suggesting that options traders are preparing for significant market movements [4] - Current trading prices show Bitcoin at approximately $112,654 (up 0.8%) and Ethereum at $4,348 (up 1.1%) [5]