Your comments

Bit of clarity on the subject would be appreciated by the community, thanks.

50 x 17 = 850. Could be the USD value rather than actual amount of GVT tokens. Labeled poorly/incorrectly. Maybe it's the value of the managers tokens that you bought?? Needs to be a bit clearer. Confusing. 

Has N. Armstrong gone through an entire reporting period yet? I've got the same bug. It is possibly missing the "Not enough data to draw graph" tag. Some are missing, others are straight lines, or dotted lines yet there are 0 trades.