Peter Hecht from AQR sat for the Flirting With Models podcast. Hecht is the Co Head Of Portfolio Solutions at AQR and the conversation was about portable alpha/capital efficiency/return stacking.
We've looked at this quite a few times. It's a fascinating concept, I track my interest back to my time at Fisher Investments in 2002 (repeat story coming). A couple of the smarter guys there geeked out over the fact that going short Nikkei futures with 2% of your portfolio and nothing else equaled the return of the S&P 500. It doesn't matter whether they were correct, I don't know, but the idea was mind blowing.
Then something similar from before the GFC when Nassim Taleb talked about going all out for risk with 10% of the portfolio and then putting the other 90% in T-bills from around the world. The idea from Taleb was getting most of your return from a small slice of the portfolio while the vast majority of the assets are safe.
The word efficiency applies to both ideas. I think they both fit the bill of leveraging down as we've talked about it before. The history of portable alpha drew negative attention as fallout from the GFC when the common implementation was leveraging up equity exposure to buy more equities which ended very badly when the S&P cut in half.
Today the conversation is about using leverage as a funding source for uncorrelated alternatives without selling stocks or bonds. Someone concerned about tracking error but wanting exposure to alternative strategies could leverage up to include something like managed futures. 10% into a levered fund like CTAP when combined with 50% SPY and 40% AGG would have 60% in equities (10% from CTAP and 50% from SPY), 10% in managed futures from CTAP and 40% in aggregate bonds from AGG. In this example, CTAP solves the "funding problem." Man Group has a similar fund and of course ReturnStacked's entire lineup is about solving funding problems. WisdomTree has also been a leader in the liquid, capitally efficient fund space.
So there is bad leverage and good leverage. Bad means just adding equity beta on top of equity beta where good leverage is adding uncorrelated betas on top of equity beta as a means of adding uncorrelated alts or alts with low correlation. That is a takeaway from the podcast not me weighing in.
One way to manage the leverage and keep it as good leverage is to just add up and net out the betas. Here's an example with SPY and client/personal holding BTAL.
So that's a good amount of leverage over a reasonably long period. You can see the betas are almost the identical with the 120/30 having a noticeably better growth rate. It's not a great example but it works...sort of. It is more volatile and there aren't any defensive attributes but the reliability of BTAL allowed for leveraging up.
There was a lot of the podcast devoted to equity long/short. BTAL is an example of short biased long/short, there's also market neutral like merger arbitrage and long biased like QLEIX. If I understood correctly, using portable alpha (leverage) to add market neutral is the most common use of portable alpha that AQR sees but it's not necessarily the most effective use for portable alpha. Hecht thought that multi-strategy is the best way to go because it allows for easily diversifying your diversifiers. He added that if whatever multi-strat you're using isn't quite getting it done, increase the managed futures exposure.
A quick sidebar, Hecht noted that over the long term, longer than any of the current mutual funds have been around, managed futures as pretty much equaled 60/40. Claude, is that right? The TLDR from Claude was the on a risk adjusted basis (not nominal returns) it's close but that the paths are wildly divergent.
Peter and Corey talked about how to size a portable alpha strategy in client accounts and the answer boiled down to right up to the point that the advisor would panic. I've never heard an answer like that in any sort of investment related setting. It seems both very honest and flippant at the same time but I really got a kick out of it.
The idea of "portfolio efficiency," pretty sure that is the term I used 20 years ago on the first iteration of my blog, plays a role in my portfolio process. It's about understanding where return is likely to come from among the holdings. In a normal bull market, more of the portfolio's growth will come from tech instead of staples or utilities for example. One aspect to how I use alts is that they dynamically protect more of the portfolio in a falling market which is a form of efficiency that helps pursue the goal of greatly reducing downside capture.
I built out a capitally efficient model for this post that uses just a little leverage with an approach we haven't used before (I don't think). It is a variation on leveraging down. I am not a fan adding a lot of leverage.
WTLS is WisdomTree Efficient Long/Short US Equity Fund. It is 90% S&P 500 and 90% long biased equity long/short. QNZIX is 50% domestic equity and 50% managed futures. The others are one we regularly use for blogging purposes. The leverage of this mix is modest. The notional equity exposure is 53%. There's modest managed futures and the fixed income sleeve avoids duration.
Portfolio 2 adds 5% BTAL and takes 5% away from BKLN. This adds a little negative convexity and slightly reduces credit risk if there is ever a credit event.
The backtest is very short due to WTLS' inception. Most of the outperformance comes from going down a lot less when the Iran War started. SCHD has done much better than market cap weighting this year which has also helped. Copilot tried to backtest it (theoretical of course) and the version without BTAL would have been down 10% in 2022, maybe, and the version with BTAL would have been down 9.5%, maybe. I do believe the volatility numbers are little more useful than the CAGR numbers and the standard deviation is also quite a bit lower.
No portfolio can always be best and with a longer period to look at, that would be the case here but it does bring in attributes that I think are important for navigating a full stock market cycle.
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