Fintech firms Fidelity National Information Services Inc. and Worldpay Inc. have agreed to merge in a cash-and-stock deal that brings Worldpay's enterprise value to approximately $43 billion, including the assumption of Worldpay debt, which Fidelity expects to refinance.

Worldpay shareholders will be entitled to receive 0.9287 of a Fidelity share and $11.00 in cash for each share of Worldpay.

Upon closing, Fidelity shareholders will own approximately 53% of the combined company, while Worldpay shareholders will own the remaining approximately 47%.

More details to follow.