Footprint chart bid side looks smaller than ask side even with equal volume...

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Hi guys!

So two options either the MW is bugged or am I just dumb and forgot the basics of how the market moves and works xD...

Basically if we have the same size on the bid x ask, shouldnt the block be the same width... Why is always the ask side "bigger" than the bid side when equal amount of volume is traded on both sides?


Thanks!