The greatest streak of stock market gains in almost 28 years may have some wondering if it is sustainable, but, according to AAII, this objective spike in valuations following Donald Trump's victory has sparked overwhelming bullishness among investors.

15 straight days of gains in Small Caps (only bettered by 1988's streak) has sent AAII bullishness soaring to its highest since January 2015 (following the end of QE3) with the biggest 3-week spike since September 2010.

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There is no fear... 

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And equity market breadth is certainly not supportive... 

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"Buy High, Buy Higher, Don't Sell"