Consider this a testament to:
B) Computerized trading.
According to CNBC, this was the lightest trading day of the year so far on the New York Stock Exchange.
Just 2 and a quarter billion shares changed hands.
Today was the lightest volume day of the year at the NYSE, with just 2.29 billion shares traded. (via @HumOnTheMarkets)
— CNBC Newsroom (@CNBCnow) August 22, 2014