I need help with this question as I can't figure .

Boeing has suffered two crashes of its 737 Max8 aircraft in the last 5 months, the most recent on March 10.This new model is expected to be a very significant part of its commercial aircraft business in the future, with an order book of about 5,000 planes. The 737 is Boeing's most important plane, generating 30% of the company's revenues and 35% of its profits according to Bloomberg Intelligence.[First sold in 1967, its 10,000^thplane was delivered in 2018.]Naturally, markets have responded.

By looking at the market prices of the company's stock and its bonds.what has happenedjQuery2240621126347031133_1555977872189?? what the markets are telling us about this time in the company's experience and where you believe the company is headed based on market reaction and sentiment.?In evaluating the bonds, three bonds of the company as follows: the 2.35% bond maturing 10/30/21; the 6.125% bond maturing 2/15/33 and the 7.5% bond maturing 8/15/42.look at is the spread above Treasuries on these bonds and whether they have changed significantly?.the stock price and prices and YTM of the 3 bonds and Treasuries of comparable maturity a month before the incident, a week before the incident and then March 15, 22, 29 and April 5.Need help in Calculating the spread of each bond on these dates.A material increase would indicate that the company's default risk has increased.

thewww.finra.org/marketdatasite for information on corporate bonds.For information of US Treasuries you may use this link.http://www.wsj.com/mdc/public/page/2_3020-treasury.html.