期權大單 | 奈飛期權成交量翻倍！英偉達獲減持評級
一、期權異動
12月15日，美股奈飛、新興市場ETF、Roblox等標的出現了期權成交量上的較大變化，分別爲日常成交量的2、1.8、2倍。
特斯拉收跌2.58%，報156.8美元，市值跌破5000億美元大關；週三期權成交328.8萬張合約，環比前一交易日增加近15%（前值286.1萬張），看跌期權佔比57.6%；其中2022年12月16日到期的150美元行使價看跌期權的成交量特別高，成交量爲147,754張。
兩年來首次！特斯拉市值跌破5000億美元，華爾街唱空接踵而至
週三，至少有兩家華爾街投行對特斯拉和整個電動汽車行業持謹慎態度。高盛對特斯拉股票依舊維持“買入”評級，但將目標價從305美元下調至235美元，以反映供需“疲軟”；大摩則警告稱，“電動汽車需求正在急剎車”，並下調了其對電動汽車在美國的採用前景的預測。
匯豐銀行：予英偉達減持評級，目標價136美元
匯豐銀行分析師Frank Lee予英偉達減持評級，目標價136美元。Lee在一份研究報告中告訴投資者，英偉達在汽車和人工智能軟件方面的潛力被短期芯片庫存修正和需求不確定性所掩蓋。分析師認爲，英偉達的股價可能沒有充分考慮到盈利下滑的因素。Lee的預測比2024年的普遍預測低9%，並提供了進一步的下行預測。
$奈飛(NFLX)$收跌8.63%，報290.41美元；消息面，“廣告支持”收視率不及預期；週四期權成交556,950張合約，是90日平均量的2倍，其中看跌期權佔比52.7%。其中2022年12月16日到期的290美元行使價看跌期權的成交量特別高，成交量爲33,498張。
美東時間週四，美股三大指數大幅收跌，均錄得數週以來的最大單日跌幅，因市場愈發擔心美聯儲大幅加息將引發經濟衰退。截至收盤，道指收跌764.13點，跌幅爲2.25%，報33202.22點；納指跌360.36點，跌幅爲3.23%，報10810.53點；標普500指數跌99.57點，跌幅爲2.49%，報3895.75點。
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