Well the volume is WAY down. All of the day traders have moved on now from the looks of it so ROKU should be somewhat stable now and all moves from now on will be carried by people that are really interested in the company.
When day traders split they usually leave a stock in a down turn for a couple of days and then it stabilizes. I think this is about stable at this point. Soon you might start to see new money coming in that has just been waiting for all of the day traders to leave. Some people don't like volatility so they just wait until it's stable.