On the more senior exchanges, the size can represent either the number of shares offered, or the number of blocks offered (shares per block can vary with share price, and possibly by exchange). On the Pinks, the size does not necessarily mean anything at all. It seems to be published at the discretion of the Market Maker. Don’t put much or any faith in the “size” that you see on the Pinks.
rjc
News 
Market Data 
Discover 
AI
