8月3日｜美股光通信板塊盤初走低，Lumentum、邁威爾科技、Ciena跌近5%。主要由行業龍頭Ciena發佈的財報指引引發市場擔憂所致，同時板塊也受到了整體市場情緒和資金輪動的影響。同時，市場存在 ...
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