SDVY aims to curate a portfolio of 100 small- and mid-cap US companies with increasing dividends over the past five years. Holdings must also meet certain fundamental criteria, including a cash-to-debt ratio greater than 25%, a payout ratio no greater than 65%, and positive earnings. The resulting portfolio is then equal-weighed. SDVY looks to be a small- and mid-cap version of RDVY, which applies a similar methodology to the large-cap space. The index is rebalanced quarterly and reconstituted annually.