Why Nvidia earnings are so important?

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Nvidia Corporation (NASDAQ: NVDA) Delayed: 207.87 +0.58 (0.28%)
Previous Close $207.29    52 Week High $88.77 
Open $205.81    52 Week Low $24.75 
Day High $208.23    P/E 280.91 
Day Low $204.95    EPS $0.74 
Volume 25,561,988       

Novadel Pharma, Inc. (NASDAQ: NVDL) Delayed: 31.82 +0.20 (0.63%)
Previous Close $31.62    52 Week High $0.03 
Open $31.23    52 Week Low $0.00 
Day High $31.95    P/E N/A 
Day Low $30.95    EPS $-0.05 
Volume 2,788,313       

Nevada Stock Exchange, Inc. (NASDAQ: NVDS) Delayed: 21.37 --0 (-0%)
Previous Close $21.37    52 Week High $0.22 
Open $21.56    52 Week Low $0.00 
Day High $21.56    P/E N/A 
Day Low $21.21    EPS $0.00 
Volume 62,985