The Labor Department’s fiduciary rule in the U.S. and the Markets in Financial Instruments Directive II in Europe are reshaping the investment landscape as more assets shift away from traditional portfolios managed by advisors and into a so-called model portfolio that includes a number of cheap ETF options.

“I do believe the changes in the ecosystem in retail are giving us accelerated flows,” Fink said.

Investors who are interested in tapping into the rising growth story of the ETF industry can look to the ETF Industry Exposure & Financial Services ETF (NYSEArca: TETF) as a way to play ETF providers. TETF tries to reflect the performance of the Toroso ETF Industry Index, which tracks publicly-traded companies that directly or indirectly provide services or support to ETFs, including management, servicing, trading or sales of ETFs.

Related: 10 Hugely Popular ETF Plays in July

These companies include ETF sponsors; asset managers; index providers; broker-dealers; securities exchanges; and service providers, such as custodians, transfer agents, and administrators, according to the prospectus. The ETF also includes a 6.4% tilt toward BlackRock.

For more information on the ETF industry, visit our current affairs category.