Quantum Stocks Lead Midday Gainers on Nvidia Boost

TL;DR

Yahoo Finance lists top US stock midday gainers led by quantum computing companies.
XNDU up 69.79% to $25.18, QBTS up 22.63% to $20.81, IONQ up 20.95% to $43.25.
Gains follow Nvidia's launch of open-source AI models for quantum computing, boosting sector optimism.[[1]](https://finance.yahoo.com/gainers)[[2]](https://finance.yahoo.com/quote/XNDU)[[3]](https://finance.yahoo.com/markets/stocks/articles/quantum-computing-stocks-surge-nvidias-131336963.html)

The story at a glance

Yahoo Finance published a midday update on the biggest US stock gainers, highlighting quantum computing firms amid high trading volumes. Top names include Xanadu Quantum Technologies (XNDU), D-Wave Quantum (QBTS), and IonQ (IONQ). The report comes as these stocks surge following Nvidia's announcement of new open-source AI models tailored for quantum tasks.[[3]](https://finance.yahoo.com/markets/stocks/articles/quantum-computing-stocks-surge-nvidias-131336963.html) Quantum computing has drawn investor interest lately due to AI overlaps and projected market growth past $11 billion by 2030.[[4]](https://ca.finance.yahoo.com/news/nvidia-move-sparks-unexpected-quantum-140515270.html)

Key points

XNDU (Xanadu Quantum Technologies): +10.35 (+69.79%) to $25.18, volume 8.97M vs avg 1.45M, market cap $8.64B.[[1]](https://finance.yahoo.com/gainers)
QBTS (D-Wave Quantum): +3.84 (+22.63%) to $20.81, volume 96.5M vs avg 27M, market cap $7.70B.[[1]](https://finance.yahoo.com/gainers)
IONQ (IonQ): +7.49 (+20.95%) to $43.25, volume 84.9M vs avg 23.3M, market cap $15.90B.[[1]](https://finance.yahoo.com/gainers)
MAAS (Maase): +1.17 (+17.44%) to $7.88, volume 167K vs avg 45K, market cap $2.80B.
QUBT (Quantum Computing): +15.91%, volume 40.7M, market cap $2.11B.[[1]](https://finance.yahoo.com/gainers)
Surge tied to Nvidia's "Ising" AI models, first open-source ones for quantum, sparking premarket and intraday rallies across sector.[[3]](https://finance.yahoo.com/markets/stocks/articles/quantum-computing-stocks-surge-nvidias-131336963.html)[[5]](https://finance.yahoo.com/sectors/technology/articles/quantum-computing-stocks-surging-models-181333083.html)

Details and context

The article focuses on intraday performance around midday, listing stocks with the largest percentage gains, prices, changes, volumes, and market caps. It ignores broader market moves, zeroing in on these leaders.

Quantum stocks like these have volatile histories but gained traction from Nvidia's push, including partnerships and models to speed quantum apps in AI. Nvidia forecasts the sector hitting over $11B by 2030, fueling the day's action.[[4]](https://ca.finance.yahoo.com/news/nvidia-move-sparks-unexpected-quantum-140515270.html)

High volumes signal strong trader interest, far above averages, which often precedes continued momentum or pullbacks in speculative tech plays.

Key quotes

None drawn from the article, as it is a data-driven list without sourced commentary.

Why it matters

Quantum computing gains spotlight potential tech shifts blending with AI, drawing capital to early-stage firms.

Investors and traders get clear signals on hot sectors, with volumes pointing to liquidity for positions.

Watch Nvidia updates, quantum earnings, or sector ETFs for sustained moves, though volatility could lead to quick reversals.[[6]](https://finance.yahoo.com/quote/IONQ)