Big build up in 6200 puts and 6300 calls unwinding, so bias is up. Break above yesterday's high should be sudden, because there must be a lot of stops above it - need to observe if that BO sustains. Above 6300 is a big fluid zone.
If it breaks out in the next 30 min above 6270, might be a quick ride to near 6300. Maybe a good idea to place Buy Stop at 6269 and tight SL after entry.