European shares gain on oil rebound, hopes of stimulus

(Reuters) - A rebound in oil prices and hopes of more stimulus lifted European shares on Wednesday, even as investors remained cautious about a swift recovery as more companies issued worrying financial forecasts.The pan-European STOXX 600 index finished up 1.8% after tumbling more than 3% on Tuesday following a historic collapse in oil prices. Oil prices rose on the prospect of pledges of extra output cuts, and optimism from the recovery spilled in to most other commodity markets. BP Plc ..