RiverPark Advisors, in an updated exemptive relief filing with the U.S. Securities and Exchange Commission, laid out plans to offer three specific actively managed ETFs—one of which, a short-term, high-yield debt portfolio, it had previously described to regulators.

The funds outlined in the July 28 filing included the RiverPark Short Term High Yield ETF, the RiverPark Small Cap Growth ETF and the RiverPark/Gravity Long-Biased Fund. It didn’t include trading symbols or possible expense ratios for the proposed funds.

RiverPark, which made its original filing outlining plans to offer its own funds in February, has said the move was in response to forecasts for significant growth in actively managed ETFs. The company is already involved in the ETF industry as a subadviser to four active ETFs from San Francisco-based Grail Advisors.

Those Grail funds are: The RP Growth ETF (NYSEArca: RPX), the RP Focused Large Cap Growth ETF (NYSEArca: RWG), the RP Technology ETF (NYSEArca: RPQ) and the RP Financials ETF (NYSEArca: RFF).

Exemptive relief filings grant the ETF firms exception to sections of the Investment Act of 1940 and are just the first step in the path to launching ETFs. It often takes at least six to 12 months from the date of the initial filing for a company’s first ETF to hit the market.