In a research note on government services companies, Wells Fargo analyst Ed Caso tells investors that he continues to favor Booz Allen Hamilton (BAH), CACI International (CACI), Leidos (LDOS), Perspecta (PRSP) and ManTech (MANT) as the government continues its shutdown, though he says near-term outperfomance may be difficult despite being "defensive" names. Caso notes that this shutdown is different than the 16-day shutdown in October 2013, as this time about 75% of the government is funded, particularly Defense/Intel versus none in 2013. Though services providers fell into the 2013 shutdown, then recovered starting mid-event, this time, investor concern has weighed on the group for a few months now, which he believes has dampened the group's traditional defensive characteristics.