In May, Goldman Sachs, Morgan Stanley and UBS announced bilateral agreements to offer reciprocal access for algorithmic trades to each others "dark pools".
Dark pools are matching engines for non-displayed, anonymous trading away from the public markets.
The arrangements, which apply to US stocks only, connect three of the largest investment bank-operated dark liquidity pools in the US Goldman Sachss Sigma X, Morgan Stanleys MS Pool and UBSs Pin ATS but stops short of full integration. The banks involved have also left open the possibility that they might connect to other dark pools in the future.
By linking their internal dark pools, the banks hope to improve the proportion of trades executed away from...