Why Nvidia earnings are so important?

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Nvidia Corporation (NASDAQ: NVDA) Delayed: 211.78 +4.49 (2.17%)
Previous Close $207.29    52 Week High $88.77 
Open $205.80    52 Week Low $24.75 
Day High $211.81    P/E 286.19 
Day Low $204.95    EPS $0.74 
Volume 34,606,885       

Novadel Pharma, Inc. (NASDAQ: NVDL) Delayed: 33.03 +1.41 (4.46%)
Previous Close $31.62    52 Week High $0.03 
Open $31.23    52 Week Low $0.00 
Day High $33.05    P/E N/A 
Day Low $30.95    EPS $-0.05 
Volume 4,646,821       

Nevada Stock Exchange, Inc. (NASDAQ: NVDS) Delayed: 20.68 -0.69 (3.23%)
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 $20.68    EPS $0.00 
Volume 94,219