Nvidia is slipping ahead of earnings (NVDA)

Shares of Nvidia dropped as much as 1.2% to $256 in trading Thursday ahead of earnings.
Wall Street expects earnings per share of $1.85 f0r the chip maker's second quarter.
UBS analysts said their field work had suggested a several-month delay beyond the original August plan of the Turing's launch.
They have a target price of $285 and maintain a neutral rating on Nvidia.
Shares of Nvidia slid as much as 1.2% to $256 in trading Thursday ahead of the chipmaker's secon