Weekly Flow Report: Apple, SPY Upside ¦ Bank Calls ¦ Nikkei Skew Rockets

​In this week’s Weekly Flow Report, we examine upside call flow on the SPDR S&P 500 ETF (SPY) going in to week end amid a healthy day for options volume on Friday. In Europe, meanwhile, investors were hedging a spike higher in banks in both index and single stock options. In Asia, the standout development in the Nikkei this week was around skew, which is becoming increasingly expensive.