The narrative fallacy, popularised by Nassim Taleb, is the human tendency to construct coherent stories explaining past events as if they were inevitable, and then to extrapolate those stories into the future. Markets are particularly fertile ground for narrative fallacies because every move attracts a "reason".
In investing, narrative fallacy creates two problems: (1) overconfidence in our explanation of past returns, leading us to mis-attribute luck to skill; (2) excessive belief in the next compelling story, leading us to overpay for narrative stocks (EV, AI, defence, semiconductor, India-stack) when the storytelling is loudest.
Narratives are sticky because they reduce cognitive load: "the stock rose because of the China reopening" is easier than "the stock rose, and the reason is unclear". Once internalised, the narrative resists revision until the price action falsifies it.
Example 1: A 2020-21 EV narrative drove dozens of Indian battery / EV-component stocks up 5-10x in 18 months. The "India will electrify by 2030" story was directionally correct, but valuations priced in 5x more growth than fundamental delivery. Stocks corrected 50-70% in the next 24 months even as the underlying industry kept growing.
Example 2: The 2024 AI narrative drove certain India-IT names up despite earnings growth lagging the price move. The story ("India IT will be the AI services hub") may or may not eventually be true; the valuation question was independent and was largely ignored.
Defences: (a) Separate the directional thesis from the valuation — a true story can still be a bad stock at the price; (b) Be wary of "too neat" causal explanations; markets are messy; (c) Pre-mortem: write out what would prove the narrative wrong before you buy.
Disclaimer: Educational content from MintByte (ARN-314872, MFD). Examples are illustrative. SEBI Investment Adviser registration is in process; we do not provide personalized advice.