Walgreen Co., (WAG) will have two important support levels coming up if it continues to decline.
The first level is at 36.68 and it corresponds to a gap fill and a 50% fib retrace. The second level at 34.71 corresponds to another gap fill and a 61.8% fib retrace.
As both of these levels have multiple support factors, both can be entered long for a short term swing trade. For either of these levels, be sure to use an appropriate stop and set it to trailing once in the money.