Which analysis should I use? Ordered Probit?

#1
I want to run a regression: (person's stock performance rating) = B(nonS&P/S&P500 portfolio concentration) + Ei
...where a person's stock performance is on a 1-10 point scale.

I want to see what the probability a person's rating will be given the concentration of nonS&P to S&P stocks.

I have been told that an ordered probit would be the best. Any thoughts?