At the end of February, exchange-traded funds (ETFs) listed around the world had a combined $3.84 trillion in assets under management, a new record and up from the previous record of $3.68 trillion seen at the end of January. What that means is the indomitable growth of the ETF industry is continuing, seemingly unabated, and that trend is prompting some investors to look for ways to profit from that growth. Plenty of major issuers of ETFs, including BlackRock, Inc. (BLK) and WisdomTree Investments, Inc. (WETF), are publicly traded. But until now, there has not been an ETF dedicated to ETF issuers.

That changed Thursday with the debut of the ETF Industry Exposure & Financial Services ETF (TETF). TETF tracks the Toroso ETF Industry Index and is the first ETF dedicated to ETF issuers, index providers and exchange operators with significant ETF footprints. Other members of the TETF lineup include data companies, trading and custody platforms, and liquidity providers, according to Toroso Asset Management. (See also: Guide to ETF Providers.)

TETF's index allocates about 75 percent of its weight to companies deemed to have "significant" levels of ETF industry participation, with 15 percent allocated to firms viewed as moderate ETF participants. The remaining 10 percent is allocated to companies with small or below moderate ETF exposure. "ETFs and the industry have experienced significant growth over the past five years, as their assets have grown in the U.S. from $1.2 trillion to $2.7 trillion; the number of U.S. ETF sponsors has increased from 45 to 78; and the average ownership of U.S. equities by ETFs has more than tripled," said Toroso in a statement. (See also: Another Assets Record for US ETFs.)

TETF holds 37 stocks with weights ranging from 0.63 percent to 6.44 percent. The ETF's largest holding is CBOE Holdings, Inc. (CBOE). Last year, CBOE acquired Bats, one of the fastest-growing listing destinations for U.S. ETFs. Among fund issuers, Invesco Ltd. (IVZ) is the largest such holding in TETF at a weight of 6.42 percent. Invesco is the parent company of PowerShares, the fourth-largest U.S. ETF sponsor.

MSCI Inc. (MSCI) and S&P Global Inc. (SPGI), the two largest providers of indexes for use by ETF issuers, combine for almost 13 percent of TETF's weight. BlackRock, the world's largest asset management firm and parent company of iShares, the world's biggest ETF issuer, carries a weight of just over 6 percent in TETF. New York-based WisdomTree, the only publicly traded pure ETF issuer, is 5.9 percent of TETF's lineup. (See also: ETF Profits: How Much Money Are Providers Making?)

The new ETF charges 0.64 percent per year, or $64 on a $10,000 invested.