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Q: S&P 500 jumped 2.5% and Dow rose 2.8% following US-Iran ceasefire announcement, but tensions quickly

S&P 500 jumped 2.5% and Dow rose 2.8% following US-Iran ceasefire announcement, but tensions quickly resurfaced over Lebanon attacks and Strait of Hormuz disputes.

Q: Meta released Muse Spark, its first AI model from superintelligence lab that outscored Grok and comp

Meta released Muse Spark, its first AI model from superintelligence lab that outscored Grok and competed with OpenAI models on internal benchmarks.

Q: Airlines including Southwest (+6.7%) and United (+7.9%) rallied on hopes of lower jet fuel costs fro

Airlines including Southwest (+6.7%) and United (+7.9%) rallied on hopes of lower jet fuel costs from potential oil price relief.

Morning Brew·Thursday, April 9, 2026·11 min read

Finance Technology Politics

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AI Summary

Markets rallied significantly following a US-Iran ceasefire announcement, but tensions quickly resurfaced over disagreements about Lebanon and the Strait of Hormuz. Meta released its first AI model from its superintelligence lab, called Muse Spark, designed to compete with OpenAI and other leading AI companies.

Key Facts

✓S&P 500 jumped 2.5% and Dow rose 2.8% following US-Iran ceasefire announcement, but tensions quickly resurfaced over Lebanon attacks and Strait of Hormuz disputes.

✓Meta released Muse Spark, its first AI model from superintelligence lab that outscored Grok and competed with OpenAI models on internal benchmarks.

✓Airlines including Southwest (+6.7%) and United (+7.9%) rallied on hopes of lower jet fuel costs from potential oil price relief.

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