the tryptophan effect

1:15 pm : It was a very quiet day in the stock market.  The indices all opened significantly lower.  The dollar dropped sharply in European trading.  That knocked European stocks lower and produced a negative tone for the US open.  There were no economic releases or earnings reports, and virtually no corporate news.   The markets began to claw their way back through the day, reflecting the resilience that has been apparent in recent weeks.