Canadian Solar (CSIQ) shares soared 5.36% in Monday's trading session, building on earlier gains that saw the stock up nearly 15% intraday. This surge comes in the wake of a mixed analyst action from Jefferies, which has captured investors' attention and driven the stock's significant uptick.

Jefferies made headlines by downgrading Canadian Solar from Buy to Hold. However, in an unexpected twist, the firm simultaneously raised its price target for CSIQ from $13.70 to $19.64. This substantial increase in the price target, representing a potential upside of over 40% from the previous target, appears to be the catalyst behind today's rally. Investors seem to be focusing on the bullish price target revision rather than the more cautious rating change.

The market's enthusiastic response to Jefferies' action is particularly noteworthy given that the average analyst rating for Canadian Solar is Hold, with a mean price target of $12.57, according to FactSet. Jefferies' new price target of $19.64 stands significantly above this consensus, suggesting a more optimistic outlook for the company's prospects. As trading continues, market participants will be watching closely to see if Canadian Solar can maintain this momentum and potentially challenge Jefferies' newly established price target.