This looks like a marked change of behavior for CHS and could be a bullish flag forming prior to more upside on the way. You can see recent moves into this price zone led to intense sell-downs. Worth keeping an eye on at least.
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Per Zacks recent article: The reality is that e-commerce is still in its early stages, only accounting for just over 9% of total retail spending in the fourth quarter of 2017. However, e-commerce continues to grow rapidly, posting a 17% year-over-year increase that same quarter.