Consensus, in financial markets, has a peculiar property: by the time it forms, it has already been priced in. The view that is held by everyone—that a particular asset is attractive, that a sector is transformative, that a trend is unstoppable—is the view that has already been reflected in the price of the assets it describes. The investor who acts on consensus is not getting ahead of the market; she is arriving after the market has already processed the same information and moved accordingly.
This is not a subtle or theoretical point. It is the central mechanism through which most speculative bubbles inflate and deflate. The belief that technology stocks could not fall because the internet was changing everything was consensus in 1999 and 2000. The belief that house prices could not decline nationally was consensus in 2006. The belief that highly leveraged financial institutions had permanently eliminated risk through sophisticated derivatives was consensus among institutional investors and regulators alike in 2007. In each case, the consensus was based on real observations—the internet was changing things, house prices had been stable for a long time—but had already been so thoroughly priced into markets that there was no return left for new entrants.
Consensus investment theses are almost always built around compelling narratives—stories that explain why this time is different, why the traditional analytical framework does not apply. These narratives are seductive precisely because they are coherent and internally consistent. The dot-com thesis correctly identified transformative technology and merely miscalculated the price at which that transformation was worth owning. Narratives that justify consensus positions are typically well-constructed—which is part of why they are so dangerous.
The practical challenge for the individual investor is that acting against consensus is socially costly in ways that acting with it is not. The investor who buys what everyone else is buying and loses money has the consolation of company; the investor who acts against consensus and loses money faces the specific embarrassment of having been wrong in a way that others can observe. This social asymmetry creates a structural bias toward consensus investing that is entirely independent of its analytical merits.
None of this is an argument for reflexive contrarianism—the position that consensus is always wrong and that whatever everyone is avoiding is therefore attractive. Consensus is sometimes correct, and assets that are widely avoided are sometimes genuinely poor investments. The argument is rather for independence of analytical process: for forming views about value and expected return that are grounded in fundamental analysis rather than in what one's peers believe.
The investor who achieves genuine analytical independence is not guaranteed superior outcomes—but she has at least eliminated the structural disadvantage of always arriving where the crowd has already been.