Considering that ORCL IM was 5% and the June straddle entry price target was 4.5 - 4.7% or ($1.75-1.80) .
We ended up paying approximately 1% more for the July straddle to decrease THETA, right?
How did we determine the approximately 1% increase in the July options entry price was fair or good for the ______% decrease in theta. Is , for example , 5 theta point decrease worth 1/2% or 10 theta point decrease worth 1.0% increase in options price?? Is there a formula somewhere to be able to calculate this? If my questions is completely off the mark I apologize.
Thanks,
Paul