The coming week has weekly derivatives expiry coming up and coming sessions will be dominated by rollover centric activities. The levels of 15700 and 15765 will act as resistance points; the supports will come in lower at 15580 and 15475 levels. If Nifty tests 15,450 levels again, it would have a classical throwback as such a move will take Nifty back to the levels from where it broke out.