Nvidia's board authorized an additional $80 billion share repurchase program as the chipmaker becomes the first company to surpass $5 trillion in market cap.

Nvidia forecast second-quarter revenue above Wall Street expectations on Wednesday, and announced an $80 billion share repurchase program.Shares of the

It expects “revenue of US$91 billion, plus or minus 2 per cent,” the company said.

Its first bond sale in five years