为啥很多high tech的beta<1# StockT*U2015-03-09 07:031 楼不理解啊,tsla 0.6, aapl 0.87, ebay 0.91, amaz 1.0倒是几个老不死的>1, googl 1.07, msft 1.03, yahoo 1.11, orcl 1.40, bidu 1.78