Nvidia (NVDA) options prices increasing into hosting earnings call

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Nvidia Corporation (NASDAQ: NVDA) Delayed: 229.81 -0.55 (0.24%)
Previous Close $230.36    52 Week High $88.77 
Open $233.11    52 Week Low $24.75 
Day High $233.71    P/E 310.55 
Day Low $229.46    EPS $0.74 
Volume 15,614,300