The increased tick size, intended to more closely reflect the prevailing volatility and bid/offer spreads, represents an underlying price movement of $50 instead of the current $5. The calendar spread will continue to trade in the current 0.05 index points ($5) in order to facilitate precise rollover transactions from an expiring contract into a deferred contract.
Nasdaq 100 Index options also will remain unchanged at 0.05 or $5 per tick. Nasdaq 100 futures trade on the CME from 8:30 a.m. to 3:15 p.m. (Chicago time) and overnight on GLOBEX2 from 3:45 p.m. (5:30 p.m. on Sundays) to 8:15 a.m. the following day. E-mini Nasdaq 100 futures trade exclusively on GLOBEX2 from 3:45 p.m. to 3:15 p.m.