The OMS-EMS business is generally depicted by the Buyside as one where OMSs are paid for and EMSs are supplied free-of-charge by the brokers. Historically there was little value in offering OMSs free-of-charge as they handle, among other functionality, back office functions that did not generate a flow for the provider. For broker provided EMSs, it is execution services, such as algorithms and access to dark liquidity, and the relationship driving the correlation between EMS usage and broker rankings.
Historically OMSs and EMSs have been developed separately. OMS and portfolio management functions started to merge, followed by the addition of TCA functionality. The trend to include elements of EMSs and OMSs in a single offering started to emerge about four years ago.
Vendor offerings can be grouped as follows:
• Standalone OMS solutions with portfolio management
• Specialised EMS solutions with algos
• Hybrid OEMS solutions