Investing.com -- 根据结算数据，随着股市周四大幅下跌，美国期权市场交易量创下历史新高，日均交易量较10月水平飙升53%。
Investing.com -- US options markets recorded their highest trading volume ever on Thursday as stocks fell sharply, with average daily volumes climbing 53% above October levels, according to clearing data.
11月5日，日均交易量达到1.12亿份合约以上，其中略超过一半为看跌期权。购买看跌期权通常反映看跌情绪。
Average daily volumes reached more than 112 million contracts on Nov. 5, with just over half consisting of put options. Put options typically reflect bearish sentiment when purchased.
自周四早盘股市抛售开始以来，对冲成本大幅上升。衡量美国基准指数预期波动率、作为市场压力关键指标的芝加哥期权交易所波动率指数（VIX）飙升至3月以来的最高水平。
Hedging costs rose substantially since the stock sell-off started Thursday morning. The Cboe Volatility Index, known as VIX, which measures expected volatility in the US benchmark and serves as a key gauge of market stress, jumped to its highest level since March.
周四，标普500指数下跌4.4%，纳斯达克100指数跌幅超过6%。
The S&P 500 fell 4.4% and the Nasdaq 100 dropped more than 6% on Thursday.
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美国期权市场交易量创纪录，因周四股市暴跌 风险披露：金融工具和/或加密货币交易涉及高风险，包括可能损失部分或全部投资金额，且可能不适合所有投资者。加密货币价格极其波动，可能受金融、监管或政治等外部事件影响。保证金交易会增加财务风险。
US options markets hit record volume following Thursday’s market rout Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
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