Be very cautious as we are in a very volatile week. Till May 23, there will be volatility and choppiness. Weakness in Nifty can continue, probably there will be a pullback rally but at the same time that rally will face resistance at 11400-11500. Probably Nifty Spot can hit 11000 Strike and 10800 may be possible, so one needs to be cautious. A relief rally may be there for Bank Nifty. The index may hit 29400-29500 and this can be used to liquidate long positions. Support for Bank Nifty at 28500, says Rajesh Satpute, Associate Director- Research, LFS Broking.