Looking at the movers and shakers on the ASX200 today.

Paladin Energy is leading the stock rockets today, up 10.63% today this session so far.

GrainCorp is up almost 6% after the grain receiver and storage company announced a guidance upgrade which led RBC Capital Markets to reiterate its outperform rating on the stock. GrainCorp announced it now expects FY22 underlying EBITDA to increase to between $590-$670 million, and Net profit after tax to be much higher than previously forecasted.

And Whitehaven Coal rounds out the top three stock rockets today, up 3.7% after lunchtime.

On the losing front, Platinum Asset Management leads the losers today, tumbling 16% after the company revealed its funds under management dropped from $21 billion to $19.4 billion for the March quarter.

Tyro Payments is trading down 2.8% today.

And IGO is trading 2.2% lower today despite no price sensitive news released by the mineral explorations company today.