AT&T buys AppNexus as it looks to bulk up its adtech business

AT&T has snapped up adtech giant AppNexus in a deal estimated to be worth more than a billion dollars as it looks to bulk up its adtech capabilities. The move marks the telcoms giant's second acquisition within a month. 
The pair haven't publicly disclosed the value of the transaction, but last week Wall Street Journal sources placed it at circa $1.6bn amid talk of a takeover – earlier AppNexus had been valued at $2bn.
AT&T hopes the takeover of the adtech