The Long Arithmetic: Issue 7

Last week I left a job half done.

I made the case that the flat years of compounding are normal, that your discomfort during them is not information, and that most of what a quiet year tempts you to do is the flatness talking rather than the portfolio. I still believe all of it. But I closed on a question, whether something had actually changed about the thing you own or only about how long you were being asked to wait, and I handed it to you without the tool for answering it.

Two readers wrote back and named the gap better than I had. One put it this way: telling “a plan that has actually broken from a plan that is only having a boring year is the diagnostic that most investors never develop, because the two states feel identical from the inside until one of them proves to have been wrong.” Another said it shorter. It is “the actual skill, and almost nobody teaches it.”

They are right, and the omission was mine. “Do not act on the flatness” is good advice and incomplete advice, because some plans really do break during their flat years, and the flatness is exactly what hides the break. So, this is the other half. Last week was how to sit still. This week is how to look, once you have stopped flinching.

Start with plain definitions, because the whole check lives in the difference between them.

A boring plan is one where the reasons you bought the thing are still true, and only the timing has disappointed you. Nothing about the holding has changed. The clock has just run longer than your patience priced in.

A broken plan is one where the reasons you bought the thing have stopped being true. The reasons themselves, and not the price, because a price can fall while every reason still holds. The business you bought for its pricing power lost the pricing power. The property you bought for the employer down the road still stands, but the employer left. The fund you backed for a particular manager is now run by someone else. Something load-bearing in your original case is gone.

The difference does not show up on the chart. Both holdings print the same flat line. It shows up in the reasons, which are not on the chart but in whatever you wrote down when you bought. That is why the feeling cannot tell the two apart. The feeling only has the chart to read.

Here is where most people get fooled, and it happens before the flat year ever arrives.

The check needs a baseline. To ask whether the reasons you bought something are still true, you have to know what those reasons were, specifically enough to test them one by one. Most people do not. They bought for a blur, or a sense that it was a good idea at the time. When the quiet year comes, there is nothing to test against, so they fall back on the only input left, which is the chart and the feeling. And we are back where last week started.

This is how I evaluate it now, and I learned it the slow way. When I buy something, I intend to hold, I write down the two or three reasons in a sentence each, plain enough that a flat year later I can read them and answer a yes-or-no question. Three sentences is plenty. The point is not rigor for its own sake. The point is that a year in, sitting inside a quiet stretch with discomfort whispering do something, I have a fixed thing to check against instead of a mood.

I did not always do this. I have held four positions through two decades mostly by never finding a reason to sell that was anything more than discomfort looking for a justification, which worked, but worked by luck about as much as by method. In year seven I could not have told you whether I was being patient or just being stubborn. I had no record to check against. I simply did not sell. That is survivable. It is not a method I could hand you and honestly call a skill.

The same missing record once pushed me the other way. I sold a set of Marsico funds once I admitted I could not say why I had bought them, which is not the same as a quiet year spooking me, and owning something you cannot explain is its own kind of answer.

Once the reasons are written down, the check is three questions, and the whole discipline is keeping every one of them pointed at the holding rather than at your patience.

First: has any reason on my list stopped being true? Go down them one at a time. The price being down, or the wait being long, are different questions, and neither is on the list. If a reason changed, that is real information, and it would be real whether the line was flat, climbing, or falling.

Second: is my disappointment about the thing or about the clock? Would I make this move if the line had been quietly climbing for the same three years? If the answer is no, the flat line is what is bothering me, and the flat line was never one of the reasons I bought it.

Third, the one people skip: what did I say, at the start, would prove me wrong, and has it happened? A plan you cannot imagine being wrong is a blind spot wearing the costume of conviction. If you named the development that would break the thesis, you can check now whether it arrived. If you never named one, that absence is worth more of your attention than the flat year is.

Run it on two holdings, both flat for three years. The first you bought for pricing power. Are the increases still sticking, the margins holding? They are. Nothing broke, so it is a boring plan, and the flat line is just the clock. The second you bought for the foot traffic to its stores. Same flat three years, but the traffic moved online, and the store base is now a cost rather than the advantage you paid for. A reason broke, so it is a broken plan the flat line was hiding. The charts look the same. What differs is the thesis, the only thing the check reads.

None of this delivers certainty, and I do not want to sell it as if it does. The two states can feel identical, as one reader put it, until one proves to have been wrong. What the check changes is the input your decision rests on. It moves you off the feeling, which is always misleading during a flat year, and onto the reasons, which sometimes give a clear answer and sometimes do not. That is a smaller claim than most finance writing makes, and one I can stand behind.

Key points:

The check has two failure modes, and they pull in opposite directions, which is part of why it is hard to teach.

The first is the reader who took last week too well. Patience hardens into a rule of never selling, and a genuinely broken thesis gets filed as a boring one because not selling has become a habit. Holding through a thesis that has actually broken is still a mistake, even though it looks exactly like the patience that pays off, because the action, doing nothing, is the same in both cases. The check is the only thing that separates them, and skipping it is how a broken holding gets kept for years.

The second is the reader who cannot sit in the quiet at all. Every flat stretch reads as a break, every holding gets re-examined monthly, and the re-examining turns into the overtrading last week warned about. The questions are worth running when a reason actually changes, or on a set schedule, rather than every time the statement fails to move.

The tell that separates the skill from both is the same in either direction. The chart stops being the thing that triggers a review. A changed reason triggers it. A scheduled check triggers it. A flat line, on its own, does not, because a flat line is only evidence that time has passed.

Last week I ended on a question I had not earned the right to ask, because I gave you no way to answer it. Here is the tool that was missing, in three steps.

1.    Recover the two or three reasons you bought the holding for. If they were never written down, write them down now. That gap is the real finding, and it matters more than any single flat year.

2.    Take the holding that has gone quietest, the one that is simply still rather than falling, the one your eye skips because nothing about it has moved in a long while.

3.    Look at the holding, not the chart, and ask one thing: has any one of those reasons stopped being true?

If yes, you may be looking at a broken plan the flatness was hiding, and it is worth a closer look with someone who knows your whole picture. If no, you are early, and early is the part that always feels like nothing is working.

I would like to know what you find when you look. Reply and tell me.

Disclaimer: This is not financial advice. Consult your CPA or licensed advisor before acting on anything specific to your situation.

Until Monday.

Alina