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The run up began end of April and Peaked on June 6th... which btw is still in the Spring. Know how I know? This:

"First official day of summer in 2017 in Northern Hemisphere was at 9:24 PM on
Tuesday, June 20"

Not only did the run up start in the Spring, but it ended there too.

It's right on the chart...

I'm fairly certain that those people are clueless as to what spring is:

Thus, in the US and UK, spring months are March, April and May,

https://en.m.wikipedia.org/wiki/Spring_(season)

Anyway, the point is that what came first, the increased activity or the price? Chart me that.