Bitcoin's market has quieted this summer after the sharp swings seen at the start of 2026, according to a July 17 report from U.S. crypto asset manager Grayscale and separate analysis from BIT Official Chinese account @BITofficial_CN. Grayscale said spot Bitcoin trading volume and realized volatility have fallen to cycle lows, price reactions to news have become more muted, and one-month implied volatility dropped to 32%, below the 42% average seen so far this year. BIT said 7-day implied volatility fell below 30% to 25%, a level it compared with the low-volatility period in summer 2023, making options relatively inexpensive. BIT said that backdrop could support a spot substitution strategy, such as replacing part of a spot Bitcoin position with a bull call spread or outright call options to retain upside while limiting downside to the option premium. Grayscale also highlighted $385 million in weekly ETF outflows as part of the broader cooling in market activity.