is this a garanteed winning trade set up?

 

I was just wondering if anyone has any experience with this trading set up, at the end of the trading week, if you were to place a buy order to trigger (if the price goes up) just above, or if you place a sell order to trigger (if the price goes down) just below, then after the new week starts will the jump in price trigger on of the orders so you can take the profit?

 
The broker will open your order when the market opens [ not in between the gap ]. So this strategy will likely not-work unless the broker guarantees stop-orders.
Reason: