# IonQ (IONQ) shares closed notably higher on April 15 after Nvidia announced its Ising AI models.

*fintech · news · 2026-04-16 · Barchart*

## Key points

- Nvidia's Ising AI models provide open-source quantum software aimed at rapid error correction and calibration.
- IONQ's stock RSI surged into the overbought zone after Nvidia's Ising announcement, signaling potential correction.
- IonQ secured a new DARPA contract to develop high-speed quantum interconnects, boosting its defense ties.
- IonQ succeeded in photonically interconnecting two independent trapped-ion systems, demonstrating modular scalability.
- IonQ's $3.3 billion cash reserve provides years of funding for its 256-qubit development roadmap.

**Companies:** Nvidia, IonQ
**Countries:** United States

[Read the full story on Barchart](https://www.barchart.com/story/news/1347545/as-nvidia-sparks-a-rally-in-ionq-stock-is-the-quantum-computing-company-a-buy-sell-or-hold)

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