I will buy shorts as soon as the AEX goes below 354,97.
If, after the purchase, the market goes down:
I will sell, at a profit, half the shorts at the AEX 354,24 level and the other half at the AEX 353,80 level.
I will put my stoploss at the AEX 356,14 level. This means that if the AEX moves above 356,14, and I still have a position, whole or half, I will sell it at a loss immediately. The stoploss is there to limit my loss and preserve my capital in order to be able to trade another day.
This specific setup proposal is only valid for today.