Rothschild Hits CoreWeave and Nebius With Sell Ratings, and Both Stocks Rose Anyway

The call, and the shrug

Rothschild & Co Redburn opened coverage of the neocloud pair on 21 September 2026↗ with the most bearish call on the board: Sell CoreWeave, Sell Nebius, and Neutral on six bitcoin miners that have pivoted into AI data centers ¹². The equity market answered the same day. CoreWeave closed at $85.43, up 5.00%. Nebius closed at $232.80, up 4.14% ³⁴.

The targets carry the sting

The price targets do the arithmetic: $54 on CoreWeave sits roughly 37% below Monday's close, and $84 on Nebius roughly 64% below ²³⁴. Nebius is the bank's named worst case, a stock "pricing in the most optimistic outcome" from the repricing of compute economics; CoreWeave falls less but its risk-reward "remains sufficiently unattractive" ¹².

Credit is the signal the bank trusts

"Credit markets are beginning to price risks that equities largely ignore," the note reads↗ ¹². Count the off-balance-sheet commitments, and hyperscalers carry more economic leverage than their balance sheets show, which could cap the next leg of AI infrastructure spending ¹.

The Fed made that bill dearer on 16 September 2026, lifting its target range 25 basis points to 3.75–4.00%, the first hike since July 2023↗, with 16 of 18 officials seeing another this year ⁸. If the credit desks are right, neocloud shareholders pay when refinancing costs what the bond market already charges AI paper.

The bond market already charges 9.75% for the same boom

CoreWeave's own stack is the receipt. Its straight senior notes pay coupons of 8.5% to 9.75%; the $3.7 billion of convertibles priced on 17 September 2026↗ pays 2.875%, cheap because the buyer is really taking equity ⁵.

CleanSpark just paid 7.875% for $2.276 billion of notes backed by a 175 MW campus↗ whose rent and operating costs Meta guarantees, up from the 7.5% first modeled ⁶. Oracle's newer, larger 2055 bond yields 22 basis points more than its smaller twin↗, backwards bond math, and hyperscalers have sold roughly $220 billion of debt in a year ⁷.

Credit already charges CoreWeave as much as 9.75 points to build the AI boom; equity has not opened the invoice.

The bulls' receipts: a $104 billion backlog and a 21% price hike

The bull case carries numbers too. CoreWeave's backlog stood near $104 billion on 30 June 2026, before more than $25 billion of new commitments landed in July↗, and second-quarter revenue rose 112% year over year ⁹.

Nebius lifted on-demand GPU rates by as much as 21% effective 1 October 2026, per a customer notice↗ ¹⁰. The schedule had not reached Nebius's public pricing page when reviewed on 17 September, and committed customers pay up to 35% less than list; whether the new rates stick is the open test ¹⁰. Consensus analyst targets sit at $144.44 and $290.71, against the bank's $54 and $84 ³⁴.

Three dates will settle the argument

The convertible settles on 22 September 2026, the new rate card goes live on 1 October, and the Fed's December projections set the refinancing math ⁵⁸¹⁰. If credit keeps winning the argument, Rothschild's quiet winners are traditional REITs, "underappreciated second-derivative beneficiaries" of the buildout ¹.