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MicroStrategy连续四周未买入比特币，Saylor暗示新动作
Michael Saylor teases ‘another color’ after four straight weeks without a Strategy bitcoin buy
Strategy holds 843,775 BTC at an average cost of $75,476, leaving the position roughly $9.3 billion underwater with bitcoin near $64,600.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力