Square and Match shares jump in their market debut
Members of tech's $1 billion club made a positive start on their first day of trading
Two of Silicon Valley's big players saw their shares jump in their first day of trading amid concern over their growth prospects.
Shares of Square, the mobile payments company run by Twitter chief executive Jack Dorsey, closed up 45 per cent in New York, valuing the company at about $4.2 billion.
It rose as much as 64 per cent in early trading after selling shares at $9 apiece, below the planned range of ...
