DISPERSION IS HERE
“Now this is not the end. It is not even the beginning of the end. But it is, perhaps, the end of the beginning.”
-- you know who
During the eighth step of the bubble, the flow of new investors starts shrinking while existing investors approach their risk and leverage limits. Volatility and dispersion grow, and gains become less uniform across stocks.
Now, dispersion is here.
Owen Lamont posted this graph today, which illustrates well how cross-sectional dispersion of monthly returns peaks at tops and bottoms.
My interpretation of the graph is not that high dispersion is always a sell signal, or a buy signal for that matter. To me, it's a signal that what has worked very well so far will stop working relatively soon. High beta was great during the late nineties, being short levered small caps was great going into the global financial crisis, and having just cash was great when Covid lockdowns hit. When the dispersion peaked each of those times, what worked on the way in stopped working soon, and what didn't work on the way in started working very well.
The obvious caveat is that we don't know that the dispersion has peaked yet. If this is a bubble, then we are close to the end of the beginning of it, but it's not yet clear whether the correct analogy is April 2000 or December 1999, the two alternative analogies having very different short-term return implications. To build on the analogy of the quote, the battle of El Alamein has started, but it hasn't been won (lost, if you're a Platner supporter) yet.
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