The argument that the market depth and liquidity will ensure narrower bid-ask spreads make no sense. Bucket shops not executing trades don't narrow bid-ask spre

The argument that the market depth and liquidity will ensure narrower bid-ask spreads make no sense. Bucket shops not executing trades don't narrow bid-ask spreads. Unless you mean, the broker/dealer generally offers fairly competitive spreads and so 10 pips isn't too big of a deal.