ProShares S&P MidCap 400 Dividend Aristocrats ETF (REGL) is an exchange-traded fund that seeks to provide investment results that correspond, before fees and expenses, to the performance of the S&P MidCap 400 Dividend Aristocrats Index. The fund tracks mid-cap U.S. companies within the S&P MidCap 400 Index that have increased their dividends for at least 15 consecutive years, offering investors exposure to a select group of financially stable firms with consistent dividend growth; its primary holdings include sectors such as industrials, financials, consumer discretionary, and materials, with top constituents typically featuring companies like Esprit Holdings, Federal Signal Corp., and Granite Construction Inc. REGL provides daily liquidity through trading on major U.S. exchanges, employs a full replication strategy to mirror the index, and distributes dividends quarterly to shareholders. Launched in 2013 by ProShare Advisors LLC, headquartered in Bethesda, Maryland, the ETF operates primarily in the U.S. equity market, targeting long-term investors seeking income and growth from dividend aristocrats in the mid-cap segment. No significant recent changes, such as partnerships, acquisitions, funding rounds, or product launches, have been reported for REGL in the last 1-2 years; it continues to adhere to its established index-tracking methodology under ProShares, a subsidiary of ProFunds Group focused on leveraged, inverse, and non-traditional ETFs.