This kind of trading activity was rife with AOE in the lead up to the Shell/Petro bid. If I remember, for about 4-6months prior to the bid, to me, it became quite obvious that it was a tactic aimed at suppressing the SP.
Although with BOW I get the feeling this activity has been ongoing for sometime now, id say the last 6-7 months. With a ceiling of around the high 130's.
Not trying to imply anything, just humble observations from previous experiences ;)
Cheers H
BOW Price at posting:
$1.30 Sentiment: None Disclosure: Held