A tough arbitration - is there life on Mars? - page 10

 
what's the point of an aggregator? it's essentially the same (same eggs, but side by side) as a multi-currency hedge ...
 
SLAWIK:
what's the rationale behind an aggregator? it's essentially the same (same eggs, but side effect) as a multi-currency hedge ...

The purpose is different. The purpose is to reduce the trading costs of a conventional (predictive) strategy.

Arbitrage is incomplete here. It does not reach the profit, but it greatly reduces the spread. Most short term strategies lose exactly on the spread. This is a way to put them "on the wing".