Rumble (RUM), a video-sharing platform with growing cloud computing and crypto ambitions, surged 13% on Monday as major shareholder Tether boosted its stake in the firm and investor sentiment around data center firms

A Friday filing to the U.S. Securities and Exchange Commission (SEC) shows that Tether Investments purchased roughly 1.06 million shares for around $5.7 million between November 19 and 21.

With the latest purchases, Tether held over 104 million shares in the company. Rumble jumped to $6.40 in the Monday session, up 13%.

The gains occurred as data center and high-performance computing stocks rebounded on Monday following a steep drawdown over the past weeks. Cipher Mining ( CIFR ) , IREN ( IREN ) and BitDeer ( BTDR ) led gains in the sector with double-digit percentage rallies.

Rumble is set to acquire cloud computing and data center firm Northern Data ( NDTAF ), also backed by Tether. The merger would add 22,000 Nvidia ( NVDA ) chips to Rumble's cloud division.