Thanks for all the responses. Just to clarify, let's say ES opening is 2160 and I think total weekly range will be 40 points or more. It could be a ton of combinations, provided that range is >= 40 pts If range is exactly 40 points it could be 2160 - 2200 2120 - 2160 or any other combination engulfing 2160 like 2140-2180 BUT, it could be also 50 points, 60 points, 80 points. If 60 points could be: 2120-2180 2130-2190 2140-2200 and so on My only assumption is that weekly range will not be under 40 points.
Fun fact: The ES has been in an 18 points range for the last 10 trading days. That is 2 weeks. The more you know...But anyway, you could make binary bets for your guess...
Off-topic but I think the purest play would be touch/no touch binary options like betonmarkets, if you are non-US based.