nifty will so far play in the range of 5200 to 5500. i also expect nifty to remain in the above range at expiry....as today option statistics suggests that:
1) open interest for 5200 put is : 86.51 lakhs ( in today when mkt is down also ther is addition of 4 lakh put in open interest suggesting strong support at 5200 levels. similarly 5300 put also adds open interest but for sake of argument we can't say its a good support or nifty will not go below it.)
2) similarly open interest for 5500 call is : 104.64 lakhs suggesting strong resistance at that level.
see this the broad range for nifty during expiry is 5200-5500.