Australia's JB Hi-Fi slides as domestic first-quarter sales turn negative
** Shares of JB Hi-Fi JBH.AX fall as much as 3.1% to A$68.48, their lowest level since September 30
** Stock set for third consecutive session of losses, if current trends hold
** The consumer electronics retailer says first-quarter sales at its key JB Hi-Fi Australia unit fell 0.4%, compared with a 6% growth a year earlier
** Adds October sales slowed ahead of Black Friday and Christmas trading periods amid heightened competition
** Stock down 27.4%, YTD, including moves in current session