Defined contribution plan participants continued allocating assets into target-date funds, according to Vanguard Group's "How America Saves" report that it published last month. Last year, 40% of DC assets were invested in target-date funds compared with 33% in 2017.
The portion allocated to equity was 72%, which has been relatively constant each year since at least 2013. This includes the equity amount in target-date and balanced funds.