Legg Mason is planning to offer a number of index ETFs as well as actively managed fund of funds ETFs.

The initial fund in the series of index ETFs will be the Legg Mason Global Income ETF, which will be pegged to the Global Income Index. Future funds may include global, international and domestic equities, fixed income and blended passive ETFs, according to an "exemptive relief" petition filed on Aug. 20.

"Legg Mason is actively considering niche opportunities in the passively managed ETF space, in conjunction with its advisory affiliates, and will be providing more specific information once filings for such products are made," a spokeswoman said.

The company is also in the process of requesting exemptive relief for one or more ETFs that invest in other "open-end and/or closed-end investment companies and/or ETFs ('Fund of Fund ETFs')," according to an amended exemptive relief petition filed on Wednesday.

The initial funds will include the Legg Mason Western Asset Ultra-Short Duration ETF, Legg Mason Capital Management Systematic Equity Fund and the Legg Mason Equal-Weighted Equity Sector Fund, according to the document.

Western Asset, a unit of Legg Mason, is a fixed-income manager. Western Asset is a subadvisor to WisdomTree, a provider of actively managed ETFs, and is the subadvisor to the WisdomTree Emerging Markets Corporate Bond Fund ETF, which was rolled out earlier this year.