Tradewatch for Q4 2017

Trading analytics
Commissions and implementation shortfall based on ITG's peer group.* Volatility annualized is the 60-day historical volatility for the S&P 500 index. Data are as of Sept. 30, 2017. Source: Investment Technology Group.
U.S. trading costs: Commissions and implementation shortfall
Average spread and annualized volatility of S&P 500 constituents
*4Q 2017 peer data are preliminary.
Tradewatch broker rankings from Elkins/McSherry, a State Street company, were not available for the quarter ended Dec. 31, 2017.