社区

U.S. stock-index futures advanced Thursday morning after the market staged a U-turn the previous trading session, welcoming a Federal Reserve decision to ramp up the pace of its taper and leave interest rates unchanged — for now.$Delta Air Lines$ – Delta rose 2.3% in the premarket after projecting a $200 million fourth-quarter profit. Consensus forecasts were predicting a quarterly loss for Delta, but the carrier said it is seeing strong holiday demand and it is on the path toward exceeding pre-

Adobe stock was the worst performer in S&P 500 Friday, after e-signature rival suggested pandemic bo

After a few days’ break, Elon Musk resumed selling shares in Tesla Inc., now coming more than halfwa

After a few days’ break, Elon Musk resumed selling shares in Tesla Inc., now coming more than halfwa

First-movers are often assumed to carry a lasting advantage. This is not the case and, especially with the EV market, the first-mover advantage is not a powerful long-term asset.Tesla’s success has made Lucid’s challenge far more effective than it otherwise would’ve been, creating a market for the car and the investor interest required to fund the company.Lucid looks to be a far more nimble company than Tesla, allowing it to take the industry’s rapid evolution in stride, with a superior vehicle

Some of the stocks that may grab investor focus today are: Wall Street expects Best Buy Co Inc (NYSE: BBY) to report quarterly earnings at $1.91 per share on revenue of $11.56 billion before the opening bell. Best Buy shares rose 0.7% to $139.00 in after-hours trading.

BEIJING, Nov 22 (Reuters) - Chinese tech giant Baidu Inc(9888.HK)said on Monday it has licensed its

Ford Motor Co’s highly-anticipated electric truck F-150 Lightning has 160,000 bookings but those ord

今天的主角是$阿里巴巴(BABA)$ $阿里巴巴-SW(09988)$ 财报后大跌11%，可能还要跌。 原因很简单： 收入不及预期 利润不及预期 指引还下调了 唯一还不错的是云业务的发展不错以及海外活跃用户的增长。但中国人往往喜欢“丑话说在前面”，当这一季表现得这么糟糕的时候，往往就有可能是为了以后在做铺垫，因此很多人也在考虑要不要抄底。 财报季我做了很多“财报前期权策略”，本质上还是在意财报这种公司事件带来的波动性。的确，很多人谈“波动色变”，但是我觉得，波动也同时给我们带啦机会。 对期权玩家来说，波动——Volatility是最重要的数据指标之一。简单地说，当波动率越大的时候，相同情况产生的权利金就越高，这样对期权的概念而 今天的策略很简单，naked sell put 可能很多朋友都用惯了这个策略，我想再强调一些概念。 首先，Long和Short，分别代表“多方”和“空方”，代表你是看涨还是看跌。 然后，Buy和Sell，分别代表“买”和“卖”的动作，代表你对标的产品的交易动作。 那么，有Buy操作的一定是“多方”，有Sell操作的一定是“空方”对吗？ 显然不是。 因为期权分为“看涨期权Call”和“看跌期权Put”—— 当我们“Buy Put”，也就买入看跌期权的时候，我们就是“Short空方”，和我们“Sell Call”也就是卖出看涨期权的时候一样，都是“Short空方”； 反之，当我们“Buy Call”买入看涨期权的时候，我们就是“Long多方”，和我们“Sell&nb

(Bloomberg) -- Bitcoin has a long way to drop before mining the digital token becomes unprofitable f