Essentially it's about the direction and velocity of the stock price, when it's going up, sell puts, when it's going down, sell calls, if the velocity is low then you can get away with both, given sufficient distance to the money. This week we had a huge down-day Tuesday, with the $SNAP debacle, then markets changed direction, abruptly and TSLA moved real fast, three days in a row. We all knew something like this was coming, but we didn't know when or how violent, and we don't know how long it will last for, but it will have caught some folks out...
In my infinite wisdom, I sold -c700's @$16 late yesterday (yes, I know!!), and they were ~$50 today when I rolled to next week. I took the same strike for +$8 net and straddled with 2x the number of puts for an extra net +$18 per call position, so if we stay flat not too bad, but if we keep with the 5-7% daily for a couple of weeks, it's going to be painful (remember March this year...??)
It all hinges on whether this is a bear-market rally or a true reversal. TBH I see no good reason for markets to go back to ATH, the macro situation is broadly unchanged, regardless of some slightly softer inflation figures and the trend is still down. We will see!