Which ITR I Should File?

I am a salaried person who usually files ITR-1, but in the previous year, I bought and sold some shares through my online demat/trading account. At the end of the year, I incurred a very little sum of loss which I do not want to claim. In the present year, can I file ITR-1 or should I file ITR-3? My total shares transaction in the past year was less than Rs. 10000. ps: I also have invested in mutual funds but did not sell any unit in the previous year.