We investigate the technical problem of community and clique detection in investor network. We introduce a pruning technique for investor clique enumeration based on specific economic and financial contexts. It can be incorporated into the central clique solver to reduce the computing time and...

We introduce various network similarity measures that can capture the topological changes of investor networks over time. We use them to study the joint dynamics of investor networks and stock price time series. We find that the network changes are positively correlated with volatility while...