What metrics can you use to determine the quality of an investor?

What metrics can you use to determine the quality of an investor? 

I start with:

1. Shares held

2. Purchasing power

3. Holding period 

These quantitative data points, combined with your qualitative understanding of the investor, can help guide your engagement strategy. 

As those metrics grow – you should aim to have management engage with those investors at least once a year.