Good guess. Trading volume for last month.
Date Volume
5-Sep-17 13,936,971
1-Sep-17 19,002,700
31-Aug-17 21,261,800
30-Aug-17 16,269,400
29-Aug-17 15,769,000
28-Aug-17 13,114,800
25-Aug-17 18,664,700
24-Aug-17 17,821,300
23-Aug-17 11,185,200
22-Aug-17 14,573,300
21-Aug-17 19,640,600
18-Aug-17 13,670,000
17-Aug-17 15,183,900
16-Aug-17 17,255,200
15-Aug-17 10,477,400
14-Aug-17 15,047,200
11-Aug-17 14,484,300
10-Aug-17 22,644,400
9-Aug-17 11,537,600
8-Aug-17 17,511,100
7-Aug-17 16,380,800
4-Aug-17 15,089,900