There are fancy ways to take a guess on what the investment prospects are for Berkshire’s stock returns in the near future.
But here’s a simple to understand one:
The ratio of price to peak-to-date known book is a not bad measure of value, so let’s use that.
That yardstick may get less accurate in future, but to date my fancier valuation models give nearly identical results, so it will suffice for this back of the envelope exercise.
Imagine the future is not particularly worse than the past. Could be, but bear with me.
The price has never been below 1.4 times peak-to-date known book for more than 25 months.
Let’s assume that record holds, for the sake of discussion.
1.4 is also a reasonable target figure because it’s only maybe 1-2% above the valuation typical in recent years. Average, within rounding error.
The current stretch below P/B 1.2 is a bit over a month already, so if the record holds, we might reasonably expect to see P/B above 1.4 within two years.
That would be a one-time gain of 20.3% from rising multiples alone.
Value per share has grown unusually well in the last few years, roughly inflation + 10%/year in the last decade.
I think it’s reasonable to count on inflation + 7% in a typical year.
Two years of that would be a value gain of 14.5%.
Multiply in the one-time gain from valuation multiple expansion, and that’s a two year price gain of inflation + 37.7%.
That’s inflation + 17.3%/year compounded.
Limitations?
Obviously the multiple might not be higher than 1.4 on the precise anniversary, but odds probably favour that being cracked before then, or at worst not long thereafter.
We might have a couple of below-average years for value growth, but then again value generally rises faster in bear markets due to new investments–you just don’t see it right away.
The returns might arrive a bit sooner or a bit later, but we can be reasonably confident they’ll arrive.
Anyway, inflation plus 17%/yr for a couple of years is a reasonable guess.
Unfortunately can’t be more precise at this time.
We’ve run out of envelope.
Jim