Last night’s 737 MAX production halt announcement should be the end of the negative news flow for Boeing, Jefferies analyst Sheila Kahyaoglu tells investors in a research note. The analyst keeps a Buy rating on the shares with a $420 price target. The stock in premarket trading is down $4.60 to $322.40. The halt creates continued volatility given uncertainty on the return to service, says the analyst. However, Kahyaoglu still targets over $30 per share of free cash flow in 2022. She estimates $18.30 per share of free cash flow in 2020, climbing to $27.90 in 2021 and $30.80 in 2022.