Options are a disintegrating asset, and as you get closer to expiration, the rate of decay accelerates. The value of a straddle’s long calls and puts consistently declines because of time rot. As a result, to make a reasonable profit you want a price move and / or an IV increase that may overcome the time decay plus the original purchase cost.
Theta is used to measure a position’s sensitivity to the passing of time. It is generally voiced as the price a position would lose in a single day thanks to the effect of time alone. Theta is always negative for a long straddle because the options decline in value as time goes by.
Time rot doesn’t manifest itself immediately. A six-month straddle does not decay much initially, and time decay does not really begin to accelerate until the last month or so before expiration.Day trading for dummies happens to be another option to think about.
Because volatility trades take some time to develop, make sure you give yourself enough time for IV to make the move you are expecting. Look to use farther-out options, even jumps ( long-term Equity anticipation stocks, which are options that will expire a few years in the future ), when buying straddles to provide plenty of time for IV to go back to its average level.
choosing the best position. Many traders have trouble understanding precisely how option spreads start to make profits. For a long straddle to be rewarding at expiration, the stock price must be sufficiently higher or lower than the options’ strike price to give either the call or put enough natural price to offset the straddle’s original cost. But before expiration, you have to take into account the simultaneous effect changes in the underlying stock price, implied volatility, and time have on each leg of the spread. For that reason, having access to a program that allows you to research and graphically display the profit or loss of a potential option trade is highly important.
Let’s compare how moneymaking 2 long straddles in the Biotech HOLDRS could be, one using the August 2004 options ( with 54 days to expiration ), and the other using the January 2007 leaps ( more than two years to expiration ). In early July, BBH was futures trading at 142.5, precisely halfway between the available strike costs of 140 and 145. Comparing the probable trades exposed using the 145 strike price had a higher expected return.