[QCP Group: Long-term interest rates and perpetual contract short covering are the main drivers of this rally] According to QCP Group's analysis, BTC rose from approximately $64,000 to nearly $76,000 within four trading days. During this period, the yield on the U.S. 30-year Treasury bond briefly touched a high of around 5.33%, the highest level since 2007. The U.S. Treasury announced that starting September 9, the maximum liquidity repurchase size for long-term Treasury bonds per transaction would be increased from $2 billion to at least $4 billion. QCP stated that the initial phase of this breakout was primarily driven by short covering in perpetual contracts, with Wednesday's perpetual buying volume being approximately 15 times the spot buying volume, while open interest remained largely flat. Subsequently, leverage began to accumulate again as prices continued to rise on Thursday. Spot demand followed suit, with U.S. spot BTC ETFs seeing a single-day net inflow of $517 million on Wednesday, marking the highest level since May. Perpetual funding rates retreated from their highs, but BTC prices did not experience a corresponding pullback. Additionally, implied volatility at the front end of options rose significantly.