Investor sentiment in the US is bearish as the American Association of Individual Investors’ net bull minus bear spread currently registered its third negative reading and now stands at -7.36.  That is the bad news. But, this contrarian metric can signal market upward and downward shifts when registering positive or negative extremes.  The gauge registered -20 last week, so the most recent figure, although still negative, is an improvement and could provide psychological support to carry further gains in US stocks.