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jt compher 保密 ID: 70061835
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    jt compher 參與了投票
    $蘋果 (AAPL.US)$ “Time Flies”活動定於太平洋時間9月15日上午10點/東部時間下午1點舉行,公司預計推出一系列新設備,包括新一代蘋果手錶和iPad,還有一款頭戴式耳機,這是該科技巨頭首次推出的。
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    蘋果9月15日活動中可以期待什麼?
    jt compher 評論了
    when buying options there's a few things to consider and one of the most important factors is the Delta
    What Is Delta?
    Delta is the ratio that compares the change in the price of an asset, to the corresponding change in the price of its stock. For example, if a stock option has a delta value of 0.65, this means that if the underlying stock increases in price by $1 per share, the option on it will rise by $0.65 per share, all else being equal. Delta values can be positive or negative depending on the type of option. For example, the delta for a call option always ranges from 0 to 1 because as the underlying asset increases in price, call options increase in price. put option  deltas always range from -1 to 0 because as the underlying security increases, the value of put options decrease
    Delta values can be positive or negative depending on the type of option. For example, the delta f
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