Stocks posted solid gains by the close of the first week of the new year. A favorable jobs report helped push the benchmark indexes listed here higher last Friday, as stocks recovered from an ominous start at the beginning of the week. Helping ease investors’ fears of a slowing economy, Fed Chair Jerome Powell indicated economic data is pointing to a good start to the economy in 2019, but, more importantly, the Federal Reserve is amenable to making adjustments if necessary. The small caps of the Russell 2000 led the way last week, followed by the Nasdaq and the Global Dow. The large caps of the S&P 500 and the Dow also advanced by more than 1.50%.