Boston-based Fidelity disclosed the valuation adjustments on Sunday in fund holding disclosure updates for January.

Fidelity's $103 billion Contrafund disclosed reduced valuations for Blue Apron Inc (-12 percent), Nutanix Inc (-7 percent), Twilio (-13 percent), Cloudflare (-31 percent), Delphix (-12 percent) and DropBox Inc (-10 percent).

(Reporting By Tim McLaughlin; Editing by Chizu Nomiyama)