GrainCorp Ltd (ASX:GNC) shares are soaring 6.99% in Thursday's trading session following a series of positive announcements that have boosted investor confidence. The Australian agribusiness and processing company reported strong fiscal first-half 2025 results, upgraded its full-year guidance, increased its share buyback program, and declared dividends.

For the first half of fiscal 2025, GrainCorp posted diluted earnings per share of AU$0.261, surpassing both the previous year's AU$0.22 and analysts' expectations of AU$0.2071. Revenue from ordinary activities jumped to AU$4.09 billion, up from AU$3.38 billion a year earlier and beating the analyst consensus of AU$3.66 billion. The company's net profit after tax (NPAT) for the half-year reached AU$58.1 million, while EBITDA came in at AU$141 million.

In light of the strong performance, GrainCorp upgraded its fiscal 2025 guidance. The company now expects underlying EBITDA to be in the range of AU$285 million to AU$325 million, up from the previous forecast of AU$270 million to AU$320 million. Underlying NPAT is projected to be between AU$65 million and AU$95 million, an increase from the prior guidance of AU$60 million to AU$90 million. Adding to the positive sentiment, GrainCorp also announced an increase in its share buyback program to a maximum of AU$75 million, up from AU$50 million. Furthermore, the board declared an interim ordinary dividend of AU$0.14 per share and a special dividend of AU$0.10 per share, bringing the total interim payout to AU$0.24 per share.