Source text: Grayscale Head of Research Zach Pandl reports that Bitcoin’s 225% cumulative return over the past three years is heavily concentrated in a small number of trading sessions. Data indicates that excluding just the five best-performing days reduces BTC returns to 95%, while missing the top 10 days drops gains to 27%. Removing the best 15 days turns the three-year performance into an 11% loss, whereas the Nasdaq would still retain a 21% return after excluding its top 15 days. Less than 0.5% of trading days accounted for gains large enough to cut Bitcoin's cumulative return by more than half during this period. Pandl emphasizes that because these peak performance days are unpredictable, attempting to time the market carries significant opportunity cost for investors seeking long-term capital appreciation. The research suggests maintaining continuous exposure rather than trying to navigate high-volatility entry and exit points. Target language code: ko Translation instructions: This is the news article content. Please maintain the original meaning.