US small business optimism jumped 6.2 points to 100.6 in June, according to the National Federation of Independent Business' survey released Tuesday. Small business sales expectations jumped 37 points to net 13%. Eight of the ten components tracked by the index improved during the month, according to the report. Visit Business Insider's homepage for more stories. US small business optimism in June jumped the most since December 2016 as owners anticipate a short recession and boosted sales as the economy reopens.