Pro: Why a government shutdown won't crush stocks

Polcari: Macrodata trumped by D.C.
Polcari: Macro data trumped by D.C.   

Wall Street is bracing for the threat of a partial government shutdown on October 1 as Congress wrangles over the debt ceiling,

The budget battle will continue to capture the attention of traders and investors alike, Kenny Polcari, a CNBC contributor and director of NYSE floor operations for O'Neil Securities, said. However, he doesn't think a government shutdown would necessarily crush stocks.

(Read more: Why markets should pray for a government shutdown)