Why Nvidia earnings are so important?

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Nvidia Corporation (NASDAQ: NVDA) Delayed: 211.80 -0.41 (0.19%)
Previous Close $212.21    52 Week High $88.77 
Open $210.99    52 Week Low $24.75 
Day High $213.85    P/E 286.22 
Day Low $210.18    EPS $0.74 
Volume 55,683,347       

Novadel Pharma, Inc. (NASDAQ: NVDL) Delayed: 31.14 -0.18 (0.57%)
Previous Close $31.32    52 Week High $0.03 
Open $30.91    52 Week Low $0.00 
Day High $31.75    P/E N/A 
Day Low $30.68    EPS $-0.05 
Volume 5,666,644       

Nevada Stock Exchange, Inc. (NASDAQ: NVDS) Delayed: 19.64 +0.02 (0.10%)
Previous Close $19.62    52 Week High $0.22 
Open $19.75    52 Week Low $0.00 
Day High $19.86    P/E N/A 
Day Low $19.46    EPS $0.00 
Volume 95,045