The article discusses the significant movements in stocks during premarket trading, particularly highlighting companies like nvidia, ebay, and snowflake, among others, which had varying earnings reports and forecasts affecting their share prices.

nvidia reported earnings and revenue that surpassed Wall Street estimates in the fourth-quarter and issued a positive outlook for the current quarter.

The copper producer advanced more than 2% following an upgrade to buy due to improving free cash flow trends.

ebay's stock fell nearly 8% after first quarter revenue guidance came in short of expectations.

snowflake surged more than 12% on better-than-expected fourth-quarter results.

salesforce shares slid 3.4% after posting fourth-quarter revenue that missed Wall Street's expectations.