The company traded over 8,000 options on total daily average option volume of just 435. The action was in the Dec options; a Dec 10/15 risk reversal (buy puts/sell calls) 4,000x. The Stats Tab and Day's biggest trades snapshots are included (click either image to enlarge).
The Options Tab (click to enlarge) illustrates that the calls and puts are mostly opening (compare OI to trade size). We can also see that Dec vol is 93 compared to Aug (63) and Sep (72).
On Tuesday, SGEN announced the start to a new pancreatic cancer drug trial. I haven't verified it, but it seems like there is an expectation for results out in the Dec options cycle. This bet is bearish.
The Skew Tab snap (click to enlarge) illustrates the vols by strike by month.
This is a great view of how much higher Dec vol is relative to Sep indicating an expectation that a vol event will occur in the Dec cycle, but not in the Sep cycle. I've highlighted the strikes that were traded.
Finally, the Charts Tab (6 months) is below (click to enlarge). The top portion is the stock price, the bottom is the vol (IV90™ - green vs HV90™ - purple). The yellow shaded area at the very bottom is the IV30™ vs. the HV20™ vol difference.
SGEN has traded in a tight range recently and is up from the $9 range six months ago. Note the difference int he IV90™ which is ~85 (green line in the bottom chart) compared to the HV90™ which is ~51 (purple line in the bottom chart).
This is trade analysis, not a recommendation.
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