Somebody(s) know something, and it looks good for AMRN and us - massive call volume today - and out of the blue the previously zero price Sept $2.5's are selling for 13 cents - not much volume in any of the other weeklies, so some traders are looking for a quick hitter, meaning this action is not hedges against long/short positions - can't see this as anything less than a leak of good news:
16-Aug-14 | Bid | Ask | Last | Change | Previous | Change | Vol | Op Int
2.0 Call $0.09 $0.15 $0.15 $0.13 $0.02 750.00% 4,652 886
20-Sep-14 | Bid | Ask | Last | Change | Previous | Change | Vol | Op Int
2.0 Call | $0.21 | $0.25 | $0.24 | $0.13 | $0.11 | 218.18% | 7,178 | 9,397
2.5 Call | $0.12 | $0.18 | $0.13 | $0.13 | $0.00 | -- | 6,530 | 1,867