John Rogers看好小盘股Covista——市场轮动扩散观点与单一买方评论交易价值判定

John Rogers在市场上涨扩散期间看好小盘股Covista——但单一买方评论不足以构成交易信号

Ariel’s John Rogers likes these small-cap names as the market rally broadens

Ariel Investments' John Rogers highlighted for-profit education company Covista as a small-cap stock he's currently bull…