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An Analysis of Market Makers' Behavior on NASDAQ Europe

The paper empirically investigates market makers' behavior on Nasdaq Europe. The impact of market makers' competition and some other microstructure effects on spreads are analyzed. We perform a decomposition of the spread into its components in both Huang & Stoll (1997) and Lin, Sanger & booth (1995) settings. The main finding is the small adverse selection component on this rather thin market, together with a high serial correlation in the order flow. Although the spread decomposition does not succeed in identifying inventory costs, we show that market makers manage their inventories effectively. However, reversion to a desired inventory level appears to be slow, compared to what has been documented on more active markets.