Toronto-based First Asset Investment Management Inc. has introduced a class of unhedged units for First Asset Tech Giants Covered Call ETF.

The new class of units began trading on the Toronto Stock Exchange on Thursday. The hedged class of units have been available since October 2011.

With the unhedged units, any foreign currency exposure attributed will not be hedged back to the Canadian dollar.

The ETF gives investors access to a selection of large technology companies by reducing volatility and generating income via an “actively managed cover call writing strategy,” the firm says in a statement.

The biggest 25 issuers — determined by market capitalization — are chosen for inclusion in the ETF on an equally weighted basis. They are rebalanced quarterly.

Distributions are paid quarterly and no greater than 25% of the portfolio’s securities will have call options written on them at any point.