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OSX Flush DNS Cache

dnscacheutil -flushcache

Options pricing – a little deeper

Getting a bit mathematical now. When pricing an option, we are attempting to put a value on the probability of future price movements. So we are now terribly interested in the mean and standard deviation of an underlyings price movements. The mean is the average price movement, whilst the standard deviation tells us how far [...]

Basic Option Trading Strategies

Two basic trading strategies for Options – Speculation & Insurance/Hedging. Remember the characteristics of an option. Buying a call or put option contract over a stock, gives you the right to buy (call) or sell (put) 100 shares of the underlying stock, at a certain price, on or before a set date in the future. [...]