Several notable upgrades have been observed in the stock market today. 

AnaptysBio, Inc. (Nasdaq: ANAB) experienced an upgrade from Underweight to Neutral by JP Morgan. This upgrade reflects a more positive outlook on the company's performance. The current trading price for $ANAB stands at $19.91, showing a gain of $0.78 or 4.08%.

Avidity Biosciences, Inc. (Nasdaq: RNA) received an upgrade from In-line to Outperform by Evercore ISI. This upgrade suggests an increased expectation of strong performance from the company. At present, $RNA is trading at $11.71, exhibiting a rise of $0.89 or 8.23%.

Corteva, Inc. (NYSE: CTVA) saw an upgrade from Hold to Buy by Vertical Research. This upgrade indicates an improved perception of the company's prospects. The current trading price for $CTVA is $57.22, with a slight increase of $0.25 or 0.44%.

Knight-Swift Transportation Holdings Inc. (NYSE: KNX) received a significant upgrade from Citigroup, moving from Neutral to Buy. This upgrade indicates a more positive outlook for the company's stock. Additionally, Citigroup also raised the price target for KNX from $58 to $66. Currently, $KNX is trading at $55.02, with a gain of $0.43 or 0.79%.

KeyCorp (NYSE: KEY) received an upgrade from Hold to Buy by Odeon, indicating an enhanced expectation of the company's performance. $KEY is trading at $10.18, with a gain of $0.36 or 3.62%.

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