The two 'minis' have been launched over BetaShares Resources and Financial Sector ETFs - the CitiFirst Mini, Resources and the CitiFirst Mini, Financials.
Citigroup's minis are leveraged trading tools classified as warrants.
BetaShares head of investment strategy and distribution Drew Corbett said that particularly in a sideways-moving market, some investors looked to actively trade all or part of their portfolio to generate or boost returns.