“The benchmark Shanghai Composite Index gained 2.8% Tuesday to finish at a record 3950.01. The move resumed a streak that began before a weeklong May Day trading break and came on nearly $41 billion in turnover on the Shanghai and Shenzhen markets, the second-highest level ever.”
"In a early sign of unrest, tens of thousands of [Greek] workers took to the streets Saturday in a larger-than-usual May Day rally, which was later followed by sporadic violence between police and anarchist youth. Another nationwide strike, also sure to feature mass demonstrations, has been set for next Wednesday."