Maybe wait for announcements to come out, then place the cash for less risk. Oca is looking healthier than ever. Sum is proven (but im waiting on the announcement before topping up).

You could buy nzx.wbc. they're easy to trade, just buy near $30, then sell when it goes up, rinse and repeat. If you get stuck with them, the dividend is better than the bank (though note there are no tax credits).

Why just a one year hold? Maybe if you give more info, people might have some out of the box ideas.