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Ernest's avatar

Re: Beating S&P 500

Cullen Roche wrote an interesting little paper last year showing durations for a wide series of different investments. He computed that global equities has a duration of 17.75 years and REITs 18.75 years. Based on several different people's viewpoints, the duration is described as the point in time of indifference to a decline considering the other aspects, such as future dividend streams, from the investment. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4185202

So the correct time period to evaluate an equity manager's performance then is at that point of indifference or beyond. The equity manager just has to negotiate with his bosses that they can't judge his performance for 20 years. I think the only equity manager who has ever pulled that one off is Warren Buffet. It only took him 50 years to get to that level of respect. It was in the GFC 2008-2009 where he was the big gun still standing bailing out the young whipper snappers at Goldman Sachs etc. who only had 20-30 years of experience . That is when people realized that Buffet understood investments over long time horizons unlike his peers. A lot of people have already forgotten that lesson. Prior to that, it was the actual JP Morgan who was in a similar position in 1908 who had that perspective.

Peter Lynch's fabulous run at Fidelity Magellan was from 1977-1990, only 13 years. His successors did not fare so well.

Active managers will probably have a chance to shine over the next decade if this chart on expected S&P 500 total returns over the next 10 years is correct. However, probably most of the managers will have lost their jobs for not keeping up with the recent run of the S&P 500 over the past decade, so it will be new ones who will get a chance at glory. https://alephblog.com/2023/06/17/estimating-future-stock-returns-march-2023-update/

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Ernest's avatar

Mentoring and WFH

I have been working from home in a technical field for 3 years now. My pool of mentees has actually expanded because I now have people working on my projects from two countries and multiple states. The under 30 folks are eager to learn and take well to Teams calls. Successful mentoring is an attitude. If you are interested in it, you can be mentored from 3,000 years away. If you are not interested, being in the same conference room won't help.

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