Because GME was the largest Senvest holding as of Oct 7, an oddity considering many within the hedge fund world at the time viewed it as a potential bankruptcy candidate - hardly a prudent move from a fiduciary standpoint, unless Senvest had a plan... and boy did it have a plan.

But let's back up.

Senvest principles, Richard Mashaal and Brian Gonick, started buying GSE stock equity in September, the Wall Street Journal report reveals, just weeks before they had accumulated a massive 3.6 million shares making Gamestop the fund's largest holding. Mashaal told the Journal: "When it started its march, we thought, something's percolating here. But we had no idea how crazy this thing was going to get."