Nasdaq

Concerns about corporate and economic growth

Fears over Trump Amazon tweet and trade war

Dow Jones enjoys third largest ever gain

Leading losses in the NASDAQ

Asian stock markets also down

Buoyed by Trump's tax promises

Number of stocks reset to $123.47

BofA Merrill Lynch survey

Investors favouring tech stocks

The US Nasdaq index has closed above its dotcom boom record for the first time in 15 years.