The manager live homework help online Armstrong said in a note to clients last month that he used the jump in implied volatility to sell put options – the right to sell – with a strike price of $1,270. Options cost more when volatility is higher. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])