As you can see, from the chart that the current trajectory of the 50 and 200 day SMA's are indicating that by mid December we will have us a Death Cross in the Broadest market measure...the S & P 500.
This could however happen sooner or later than 12/12/18. This is given that the SMA's stay on their current trajectory through 12/12/18.
A larger than expected fall from here could make that Cross happen much sooner, and a rise from here would push it out until mid January or February.
Its going to happen either way.