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Stocks making the biggest moves after hours: Boeing, H&R Block and more

Maggie Fitzgerald

Shares of Boeing BA ticked higher in extended trading Thursday on news that the aircraft-maker completed 96 flights testing performance of the 737 Max with updated software. The company is working to fix the aircraft's MCAS flight control software and improve pilot training, according to Boeing CEO Dennis Muilenburg. Shares of H&R Block HRB dipped as much as 2% after hours Thursday after the company released data that showed overall tax liability is down almost 25% on average under the first year of tax reform.