The following three defense stocks are to be combined into a stock index in January $2019($perhaps a portfolio manager believes these stocks are an appropriate benchmark for his or her performance$).$ Suppose that Douglas McDonnell shareholders approve a $2-$for$-1$ stock split on January $1,2020.$

$\backslash$table$[[,,$Price$],[,$Shares,,,$],[$Douglas McDonnell,$($millions$),\frac{1}{1}\frac{?}{19},\frac{1}{1}\frac{?}{20},\frac{1}{1}\frac{?}{21}$