精选70MarketWatch（RSS）股市
激光武器不再科幻，重塑国防股估值逻辑
Laser weapons aren’t science fiction anymore — and they’re changing how defense stocks are valued
Why Palantir and Elbit are top plays in the booming counterdrone market.
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