This document summarizes the key findings of Callan's 10th annual Defined Contribution Trends Survey, which received responses from 165 large 401(k) plan sponsors. Some of the top trends include a rise in automatic contribution escalation programs, more plan sponsors offering Roth features and retirement income solutions, and continued growth in the use of collective trusts compared to mutual funds. The top priorities for plan sponsors in 2017 are reducing plan fees, ensuring compliance, and improving participant communications.