We feel traders can go for a short straddle strategy where maximum profit will be made in the range of 37,850 and 40,649. However, one needs to be careful above these ranges in the current weekly settlement.Nifty Bank has to cross and hold above 39,500 zone for an up move towards Rs 39,750 and 40,000 zones, whereas supports are placed at 39,250 and 38,888 zones.