Commonstock, a social network for retail traders that requires them to link their brokerage account before posting about their investments, raises $25M Series A (Kate Rooney/CNBC)

Kate Rooney / CNBC:
Commonstock, a social network for retail traders that requires them to link their brokerage account before posting about their investments, raises $25M Series A  —  – Commonstock is a relatively new social media platform dedicated to financial markets.  It requires traders to link …