
Downbeat surveys of economic activity in China and parts of Europe highlighted the fragility of the global recovery and raised concerns about the withdrawal of monetary stimulus.

The preliminary China purchasing managers' index from HSBC/Markit for February came in at a seven-month low, falling deeper into contraction territory. The gauge slid to 48.3 from 49.5 in January.
In Europe, the factory gauge for the region unexpectedly slipped to 53 from 54 in January, while the services measure rose less than estimated to 51.7 from 51.6, Markit Economics said yesterday. A composite gauge fell to 52.7 from 52.9.
But the US data provided a surprise as the Markit Economics preliminary index of US manufacturing increased to 56.7 in February from a final reading of 53.7 last month, the London-based group said.
"The macro data is starting to be not as good as before and some red lights are appearing in our model," Johann Nouveau, partner at Seven Capital Management, a hedge fund that uses mathematical models that gauge economic data and market momentum.