Shares of WK Kellogg ( KLG) surged 30% Thursday as the maker of Froot Loops and Frosted Flakes announced it had reached a deal to be acquired by Italian sweets company The Ferrero Group for $23 per share in cash, or about $3.1 billion.

Ferrero has once again used M&A to expand into another part of the store – but will it pay off? After The Wall Street Journal and Reuters reported on Wednesday (9 July) Ferrero was nearing an agreement to buy WK Kellogg Co,