now that volatility is back, I can add some thoughts as several wanted real time.
the sell-off today is like a delayed action. also the trade war story has already been proven bogus once, with new high in June. so, if it looks bogus, it is bogus. fxcm long/short ratio has moved towards neutral - so near term a secondary sell down is quite possible... as we still have 1-2 weeks time before the earning run starts, so right now with the trade war talk it's a perfect time to shake for a few days.
there is no buy/sell calls... the idea of 'calls' is fundamentally wrong... a individual trade that may look like a buy on itself, but when it's put in a portfolio it may not fit... everyone's portfolio is different.