[thedufer]

From the article:

> Barclays was advertising LX to high-frequency traders by offering them more information, lower fees, and faster connections than it gave to institutional investors.

The "more information" being the key part - it sounds like the pools weren't as dark as their customers were led to believe. Your other points are spot on, though.

[minimax]

If Barclays was displaying resting orders to HFTs in LX, the AG wouldn't beat around the bush about it in the complaint. It would have been the headline issue. Doesn't seem likely that was the case.