Entry Level for a Short Trade

NASDAQ climbs higher and higher. Where will we see price reversal with following down movement? May be 4750 or 4800? It does not matter if we try to open a short trade like this: we have to wait when a candle breaks the up trend line and closes below. It will be a signal that probably the up movement is over. Place a pending order below the low of this 4H candle. And one more confirmation of a down movement, ADX made new high which is lower then previous. It's also a signal that we have to be ready for short trades.