The image you posted is certainly clear !!!
For fun, I have been "peeking" at various futures options, just to try to get a better feel for how they trade.
Just looked at Dx. The Feb11 options expire in 13 days and very little Open Interest. BUT, what there is is all on the nearby Calls [79 thru 84] and ONLY 4 puts in the nearby PUTS [76 thru 78].
What has me curious here (beyond what might appear to be an upside bias) is the lack of some balance between total puts and calls that I think should be indicative of various spread trades ???? The OI is essentially all on the Call side ??
For March11 [expire 41 days] there is more balance, but still seems to favor the Call side eyeballing the OI.
Any thoughts ??