Jarden Brief: Why Discovery stock dropped 5.7 per cent 17 May, 2021 08:38 PM 7 minutes to read AT&T announced it will be merging WarnerMedia with Discovery in a US$43 billion deal. Photo / Getty Images AT&T announced it will be merging WarnerMedia with Discovery in a US$43 billion deal. Photo / Getty Images NZ Herald New Zealand The S&P/NZX 50 traded up following a poor performance last week, with the index recovering 0.3 per cent to 12,411 points. Leading the index performance were healthcare and technology stocks, making gains of 1.0 and 0.8 per cent, respectively. Film software developer Vista Group Ltd led the way with a strong performance, up 5.7 per cent at yesterday's close following a sell off earlier in the month. Similarly, Restaurant Brands NZ Ltd jumped 5.1 per cent to $13.90 – a touch below its record highs.