Hewlett Packard Enterprise is buying Juniper Networks in an all-cash deal valued at about $14 billion, which is anticipated to double HPE’s networking business.

Shares of both companies rose before the market open today. A Wall Street Journal report about a potential deal saw Juniper’s stock surge 22% and HPE’s stock dip 9% before an official announcement was made.

HPE will pay $40 per Juniper share.

Juniper, based in Sunnyvale, Calif., helps companies access the cloud infrastructure that serves as the foundation of digital and AI strategies.

“This transaction will strengthen HPE’s position at the nexus of accelerating macro-AI trends, expand our total addressable market, and drive further innovation for customers as we help bridge the AI-native and cloud-native worlds, while also generating significant value for shareholders,” HPE President and CEO Antonio Neri said late Tuesday in a statement.

Juniper CEO Rami Rahim will lead the combined HPE networking business. He will report to Neri. HPE was spun off from Hewlett-Packard, one of the founding companies of Silicon Valley, in 2015 and is now based in Houston.

The transaction, which was approved by both companies’ boards, is expected to close either later this year or early next year. It still needs approval from Juniper shareholders and regulators.