Options are a decaying asset, and as you get closer to expiration, the rate of decay accelerates. The value of a straddle’s long calls and puts constantly declines because of time decay. As a result, to make a fair profit you need a price move and / or an IV increase that may overcome the time decay and the primary purchase cost.
Theta is used to measure a position’s sensitivity to the passing of time. It is usually expressed as the worth a position would lose in twenty four hours thanks to the effect of time alone. Theta is always negative for a long straddle as the options decline in value as time goes by.
Time rot does not manifest itself immediately. A six-month straddle doesn’t decay much initially, and time rot does not truly start to accelerate till the last month or so before expiration.Day trading for dummies happens to be another option to think about.
Because volatility trades take a little time to develop, ensure you give yourself sufficient time for IV to make the move you are expecting. Look to use farther-out options, even leaps ( long term Equity anticipation stocks, which are options that may expire a few years in the future ), when buying straddles to provide masses of time for IV to fall back to its average level.
choosing the best position. Many traders have difficulty understanding exactly how option spreads start to be profitable. For a long straddle to be rewarding at expiration, the stock price must be satisfactorily lower or higher than the options’ strike price to give either the call or put enough inbuilt price to cancel out the straddle’s original cost. But before expiration, you need to take into account the concurrent effect changes in the basic stock price, implied volatility, and time have on each leg of the spread. For that reason, having access to a programme that allows you to analyze and graphically show the profit or loss of a potential option trade is essential.
Let’s compare how lucrative 2 long straddles in the Biotech HOLDRS could be, one using the Aug 2004 options ( with 54 days to expiration ), and the other using the January 2007 jumps ( more than two years to expiration ). In early July, BBH was futures trading at 142.5, precisely halfway between the available strike prices of 140 and 145. Comparing the probable trades exposed using the 145 strike price had a higher expected return.

