I have written many times over the years about the bullish tendency of the market during opex week in December. I used to refer to it as “The Most Wonderful Week of the Year”. And it was…up until 2018. So below is an updated look at the stats and profit curve for owning SPX from the close of the Friday before December opex to the close on December opex.

That is a 7% loss you are looking at in 2018. So that will likely take a few more years to recover. But we are entering the time of year when the market typically has the seasonal winds at its back. And despite the 2018 December collapse, that is something traders may want to keep in mind this week (and even a bit longer).

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