As they explan: Gives investors a simple and accessible way to...

As they explan:

Gives investors a simple and accessible way to obtain magnified ‘short’ exposure to the U.S. sharemarketA 1% fall in the U.S. share market on a given day can generally be expected to deliver a 2.0% to 2.75% increase in the value of the Fund (and vice versa)

It was 7% down last night, how come the stock was openning $4.2 this morning? BTW, Last Close was $4.050

Can someone do the math for me??

This stock is rip off~~~~~~~~~~