The ABCDE Elliot wave pattern forming an inverted triangle.

We see wave A starting from the upper trend line. So we expect price to eventually breakout to the downside.
There are two possible ways to trade this move.

(1) Completion of the ABCDE Elliot wave to point E confirms that the short trade can be made at point E to follow the wave to the lower trend line, and possibly beyond as price breaks out of the lower trend line.

(2)The trader can decide to wait until the breakout from the lower trend line is confirmed, then a Sell Limit order can be used for the trade entry as price attempts a pullback to the broken lower trend line.