European stocks tumbled in opening deals on Wednesday after Donald Trump was elected US president, beating market favourite Hillary Clinton.

In initial deals, London's benchmark FTSE 100 index shed 1.87 percent to 6,718.85 points, Frankfurt's DAX 30 dived 2.9 percent to 10,181.89 points and the Paris CAC 40 index slid 2.8 percent to 4,350.07 compared with Tuesday's close.