CoreWeave (CRWV) shares rose 3% before surrendering their gains Monday after Goldman Sachs upgraded the neocloud provider to Buy from Neutral.

The analyst also raised the stock’s price target from $106 to $139 per share following a sell-off of more than 25% last week.

A viral chart showing CoreWeave’s spiking bond yields last week underscored concerns about the company’s debt-heavy balance sheet and whether it can scale its business quickly enough to cover rising interest expenses.

Nvidia (NVDA) CEO Jensen Huang tried to ease concerns on Thursday about the company’s debt-heavy balance sheet by stating he was “optimistic” and that its “cost of capital is actually decreasing.”