Interesting, not what I was expecting !!!
Looks like they are displaying summary P/C data for each of the exchanges [the top entry being a combined/total] for all of the equities/indexes. Maybe they break it out by exchange because all products are not traded on all exchanges ??
No clue what/who BOX is [2 below CBOE entry]
No clue at moment what you might do/infer from this data. Maybe an attempt to infer market sentiment for all of the products/items traded across the various exchanges ??
You did mention that E-Signal mentioned folks had been asking for it ....
Maybe Haligonian will pick up on this. He often gets into COT and market sentiment type stuff.
Will have to stew on this.