Lean Hogs Butterfly HE JKM6

If we take a look at last 10 years of butterfly HE JKM, we get this stacked chart:

Now, let´s take 2015 butterfly away, and the chart looks like this:

The Butterfly´s Seasonal chart (including 2015) has a nice bearish trend:

I have marked my sell area in the grey rectangle.

Charts: Scarr Visual Trading. 10% discount coupon: 912CA5B4AB