Context :

Aims : We present new results regarding the companion mass-ratio distribution ( CMRD ) of stars , as a follow-up of our previous work .

Methods : We used a maximum-likelihood-estimation method to re-derive the field CMRD power law avoiding dependence on the arbitrary binning .
We also considered two new surveys of multiples in the field for solar-type stars and M dwarfs to test the universality of the CMRD .

Results : We found no significant differences in the CMRD for M dwarfs and solar-type stars compared with previous results over the common mass ratio and separation range .
The new best-fit power law of the CMRD in the field , combining two previous sets of data , is dN / dq \propto q ^ { \beta } , with \beta = 0.25 \pm 0.29 .

Conclusions :