Nvidia's B200 compute price slides as Kalshi bets signal more downside

Nvidia shares have stalled while the rest of the semiconductor sector runs. The VanEck Semiconductor ETF (SMH) is up 84% this year and gained 15% in the past month alone. Nvidia is up about 12% in 2026 but has lost roughly 3% over the last four weeks.

The divergence tracks a shift in Wall Street's AI focus. Money has rotated toward memory chips and infrastructure plays. Micron Technology and Sandisk have each rallied nearly 60% in the past month. Nvidia has sat out the move.

Now a pricing signal is compounding the concern. The compute-per-hour price for Nvidia's flagship B200 GPU peaked at $6.11 on May 30, according to Ornn, a provider of live GPU pricing. By June 21, that price had fallen to $4.22, a drop of roughly 31% in three weeks.

Kalshi traders are betting the B200's compute price will not reclaim that May high. The prediction-market contracts reflect a view that the supply-demand balance for Nvidia's highest-end chips is softening, at least in the short-term rental market.

Most companies access GPU compute through cloud providers or neoclouds. The rental price fluctuates with demand for AI infrastructure, and the current decline suggests that the frantic scramble for capacity that defined 2024 and early 2025 is cooling.

"A lot of people don't know how much computing power they'll need in the next year, and a lot of suppliers of that computing power right now don't know how many GPUs and to what capacity they should order," Seoyoung Kim, a finance professor at Santa Clara University, told CNBC. "And the manufacturers, like Nvidia, they don't know how much they should produce."

That uncertainty has not stopped large-scale commitments. Earlier this month, Google agreed to pay SpaceX $920 million a month to rent AI computing capacity from October 2026 through June 2029. The deal will use roughly 110,000 Nvidia GPUs, along with CPUs, memory, and other components.

RBC Capital Markets cited the Google-SpaceX deal as a reason to stay bullish on Nvidia for the second half of 2026 and 2027. "Regardless of the precise rationale, these GPU rental agreements should put to rest lingering concerns about NVDA losing share to application-specific integrated circuits, at least in the short term," the analysts wrote.

The B200 price decline and the Kalshi bets sit in tension with that longer-term view. Rental markets are forward-looking: a falling spot price suggests that near-term demand is not absorbing supply at the peak rate. If the compute price continues to slide through July, the narrative that Nvidia is simply taking a breather while the sector catches up will face a harder test.

For now, the stock's Alpha Score sits at 69 out of 100, a Moderate reading that reflects the mixed signals between long-term positioning and near-term price pressure.