Dictionary.com
Thesaurus.com

dollar-average

American  
[dol-er-av-er-ij, -av-rij] / ˈdɒl ərˌæv ər ɪdʒ, -ˌæv rɪdʒ /

verb (used without object)

dollar-averaged, dollar-averaging
  1. to engage in dollar averaging.