Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Yingli Green Energy Hold. Co. Ltd. (NYSE:YGE) rose more than 10% in Monday's early trading, then settled to close up just over 5% after an SEC filing revealed Skagen Funds holds a 5.31% stake in the Chinese solar specialist.

So what: That's a big vote of confidence in Yingli's prospects from the Norway-based firm. The news also arrives just days after Yingli announced it had delivered 10 MW of monocrystalline silicon modules to Kingspan Energy to power the largest rooftop solar project in the UK. 

Now what: While Yingli isn't expected to turn a profit on a full-year basis in 2014, Yingli management subsequently told investors after last quarter's painful earnings miss that they expect to hit breakeven "through the end of Q2 and start to make profit from early Q3." If that's still the case and Yingli continues to show progress when it reports first-quarter 2014 results in a few weeks, I think the stock could still be poised to handsomely reward patient investors even after today's pop.

Steve Symington and The Motley Fool have no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.