The “Zurich Axioms” are a good set of guidestones on investing, less axiom, and more dictums, these statements mostly focus on when to take profit, how to be a keen contrarian, and most importantly, how to govern your own decision-making to ensure you’re not being overly optimistic (or pessimistic). There are 12 major axioms and 16 minor ones. To be honest, I didn’t perceive much substantive difference to explain why a statement fell into “major” or “minor”, except that the author choose to organize the minor axioms thematically with respect to a major one.
In the context of investing philosophy, this book is definitely not from the technical school, in fact one of the minor axioms is to “Beware the Chratist Illusion”, though I suppose skepticism of chartism doesn’t preclude one to being a technicalist, though the term “chartism” is often used pejoratively by those skeptical of the whole enterprise of technical analysis. Yet, this book is not from the “value” school nor is it from any kind of fundamental analysis. Unlike those, the Zurich Axioms makes clear that it is instructing it’s readers to speculators, pure and simple.
Speculation however, necessarily makes the decision/strategy around the investment activity more abstract than either the fundamentalist or technical schools In those perspectives, one is assessing something “real” and there is a belief that the “real” object, whether it be the business reflected in an accounting book, or a time series, who’s abstract physicality can be understood from certain assumptions on the nature of trend, and how it is constricted, which can be predicted by observing momenta, and other indicators/filters etc, follow some kind of inherent system driven law, which allows extracting a regularity (and does concrete advice) possible.
From the perspective of the Zurich Axioms, however, much of what is correlated to successful speculation can be described as applying a healthy amount of skepticism to one’s own thoughts. Whether those thoughts occur after observing other market participants, or arise within from the ether of one’s own mind, this kind of speculation is dependent on one knowing when “the getting is good”, in a way, it’s sort of like being a self-therapist for one’s self while one is engaged in the activity of investing.
I suspect these rules would apply better in certain types of equities relative to others. For instance, more than a few axioms center on not being too greedy, and taking profit when you have a good a profit, or when an equity is dropping, to not second guess one’s self, and get out of that position before it goes down further. One specific rule actually states not to average-down. Though this later rule has often been repeated by many other schools of thought, including trend-followers, I’ve personally seen many instances where these rules would have failed spectacularly, and the book admits as much. However, as the text states, for every one moment you kick yourself for missing a major trend-up, you will kiss yourself for avoiding duds. However, in the case of the past 10 years, just finding and holding onto one equity, averaging-down during down-swings, and being crazy, for say a Tesla, or an Nvidia, or a Shopify, would have been worth 1000 other moderately growing stocks. Many of these could be symptoms of a bubble, or their growth could be emenating from the exponential nature of the evolution of technology. It's yet unclear, and thus how "timeless" the advice provided in the Zurich axioms is also unclear.
Still, I believe these rules/axioms are great mental companions to decision making in the market, and like any rules, they are never always right, and sometimes contradictory. It’s really up to you to marry them to your own experience to form something cohesive. For what they are, I believe they are a great set of tools. Recommended.