Identify the most important advice out of the given.
Do your research before investing, stay calm in volatile markets and invest in a diverse portfolio.
The most important advice out of the given is to: Do your research before investing.
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify the most important advice out of the given.

### Input:
Do your research before investing, stay calm in volatile markets and invest in a diverse portfolio.

### Output:
The most important advice out of the given is to: Do your research before investing.