ETMarkets Smart Talk: Short covering highly likely in post-Christmas week: Anand James
"Among Nifty December month options, activity in calls far exceeds that of puts. Put OI is concentrated at ATM, and at psychological points of 17500 and 17000, which do not reflect a positioning bias. However, OI and activity along calls are spread across the near OTMs suggesting that traders have been trying to capitalize on the falling momentum by building shorts."