Unlock stock picks and a broker-level newsfeed that powers Wall Street.
Welcome to the Thunderdome: An Imperfect Theory of What’s Going On

This article was originally published on ETFTrends.com.

(The following are my compiled notes for a recent presentation at ETF Trends. I've included the slides for reference in line, however you can also watch a replay here. Thanks!)

[[Note: I have talked to a lot of people in the past two weeks, through phones and Zooms and IBs and texts, and who knows what. I'm sorry if I discredited something or misrepresented some of your thinking here or adopted something of yours as my own. Please don't sue me, my note taking is just not what it used to be.]]

Let's start with a couple of quick asides: what we're seeing in GME, and whatever else comes next, is most likely a blip. If you believe it's a blip, here's your narrative cheat sheet:

Right up front - I think this is the 98% outcome. We have a quick little bubble like we've seen before and we move on. But I think there's a 2% outcome that which, while unlikely, is still instructive.

The Briefest of Recaps

It's been covered by everyone. Surprisingly well until it got to the end. The specifics aren't as interesting as this guy named Keith Gill:

First, I gotta say, an incredible piece of journalism (especially photojournalism) here by the Journal. Gill was a genuinely smart, CFA-accredited value investor, and got really public about his pick of the moment on YouTube and on Reddit. He and a cadre of quite professional 'amateurs' educated an enormous legion of folks about short squeezes (GameStop was real short):

And more interestingly, about Gamma squeezes:

Which, in a nutshell, exploit the procyclical nature of how people who write call options have to hedge -- that is, they initially have to hedge very little when things are well out of the money, until all of the sudden they turn into covered call writers. That idea of procyclicality is important, and we'll come back to it.

That's Part A of the story. Part B is that these guys caused enough of a ruckus to cause some problems in this:

I will just drop this nugget from an old BCG study rather than get into the nitty-gritty. While Dodd Frank put in place fairly nuanced collateral requirements to make sure the DTC and NSCC could in fact backstop all the trading in the country, the move to T+2 actually scaled much of that capital back:

The end result is that some brokers had problems depositing enough cash in their accounts in the settlement plumbing because of how volatile they made the very thing they were deciding to own a lot of. But while it has been a rare treat to be someone who understands the most boring parts of investing for a few days, I don't think any of this is all that new or unexpected, but more on that in a second.