Here are the biggest calls on Wall Street on Wednesday: Jefferies upgrades DoorDash to buy from hold Jefferies says its growth algorithm is underappreciated. "We believe DASH's 2026 outlook helped lower expectations, providing flexibility for both long-term investments and upside to consensus." Read more . William Blair reiterates Nvidia as outperform William Blair says the stock remains too attractive to ignore ahead of earnings on Wednesday after the bell. "We continue to see a favorable risk/reward equation for the stock as AI demand drives continued growth and earnings power. AI training and inferencing demand across a growing number of hyperscaler, neocloud, and sovereign AI projects should only drive continued growth for Nvidia's data center business." Baird upgrades Simmons First Na

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