Shares of quantum computing and artificial intelligence companies rose on Monday, as investors hoped that Nvidia would blow some life back into the beaten-down sectors with new announcements at its annual conference.

Arqit Quantum (ARQQ) led several quantum computing stocks higher on Monday ahead of Nvidia's (NVDA) first-ever Quantum Day at its annual GTC event this week. Arqit soared about 35%, Quantum Computing (QUBT) jumped nearly 17%,

The problem with sending quantum computing stocks soaring is there is no guarantee Nvidia will actually reveal one. It is all based on speculation by Mizuho Securities analyst Vijay Rakesh who suggested it might do so. If Nvidia and Huang don’t deliver, expect quantum computing stocks to crash once more.