來源:[1] 分析師上調思科目標價 - 做空CSCO看跌期權在此奏效 (https://www.barchart.com/story/news/34943119/ ...)[2] 分析師上調思科目標價 - 做空CSCO看跌期權在此奏效 - Barchart.com (https://vertexaisearch.cloud.google.com/groun ...)[3] 在下跌市場中保護股票的3種期權策略 - MarketBeat (https://www.marketbeat.com/originals/3-option ...)