As the DAX 30 is climbing again back to the mid 12.400s while the Implicit Volatility has dropped all the way from 18% to 13% since the beginning of the month, I have decided to open a October - December 12450 Put Calendar Spread.
|DAX 30 on September 21st 2018. Source Investing|
The idea behind this trade, is to do it when Volatility drops and expect a return of the Volatility to its mean value. If that happens, the Option that we own far in the future will gain more value that the value lost by the Option being sold in the front month.
If by the end of the month, I have not achieved that increase in volatility, I will roll the short option into November in order to recover as much premium as possible, from the original debt paid.