The most talked about and market moving research calls around Wall Street are now in one place. Here are today's research calls that investors need to know, as compiled by The Fly.Top 5 Upgrades: Jefferies upgraded Instacart (CART) to Buy from Hold with a price target of $45, up from $38. The company is positioned to beat consensus estimates, trades at "notable growth-adjusted" discount, and is less exposed to geopolitical risks, contends the firm. Wolfe Research upgraded CrowdStrike (CRWD) to Outperfo ...