Expecting nifty to reach 18800. A gap down to 18656 can take market upto 18795. A rejection at 18795 (or Fridays high) and the gap above it means it can fall back to low of 18656. Momentum is on the upside. Watch 18800/18900 calls today and 18550/18600 puts. Fresh call writing at 18800 means 18795 zone will be rejected.