D&C, I suspect some of the money is flowing from lithium into...

D&C, I suspect some of the money is flowing from lithium into vanadium, although it is a fraction of the value of shares traded in lithium stocks...My list is not exhaustive but I calculate 13 million dollars were traded in vanadium stocks on the ASX today, whilst ~$14 million were traded in PLS. The XEC also finished negative today after 2 days, in part reflected by divestment in lithium?

Something that would be a useful metric to better understand the flow of money would be share turnover as a function of time. That is, how long on average are shares held. Does such a metric exist?