Panic Buying has been quantified in Nasdaq on 8/27/18, according to a news item posted on Tradingview.
The Nasdaq Trin, which is a ratio measuring buying pressure in volume/ b the number of issues it is going into, fell to a reading of .31 on Monday afternoon. Earlier this month, selling pressure had spiked the Nasdaq Trin above 1.80, ( See Chart)
The message here to me, is one of extreme caution, as crowd behavior like this often comes near significant market tops.