Fiona Bassett is CEO of FTSE Russell, one of the largest indexing firms in the world and the owner of the small-cap benchmark Russell 2000 and large-cap Russell 1000. She joins Todd Rosenbluth, Vettafi head of research, and CNBC's Bob Pisani on 'ETF Edge' to discuss the Russell rebalancing this week, trends in the Russell indexes, what's driving investors now and more.