A retail investor today has access to more market information than a professional fund manager had in 1995. Outcomes have not improved correspondingly. The reason is that most of what has been added is noise, and noise does not merely fail to help — it actively degrades decisions by producing false confidence and prompting unnecessary action.
The daily-explanation problem
Every evening, someone explains why the market moved. The explanation is constructed after the fact, from whatever happened that day, and it is delivered with complete confidence. The same 0.4% fall would have been attributed to entirely different causes depending on which news items were available to point at.
A defensible information diet
- Annual reports of companies you own — primary source, no interpretation layer.
- Earnings call transcripts — especially the questions management declines to answer.
- Exchange filings — shareholding, pledging, bulk deals, insider trades. Free, factual, barely read.
- Credit rating rationales — analysts explaining exactly what worries them about the debt.
- Books on the underlying disciplines, which do not go stale in a week.
- Daily market commentary explaining why the index moved 0.3%.
- Target prices from anyone with a position or a distribution incentive.
- Telegram and WhatsApp tip groups — everyone in them already owns it.
- Anything containing "sure shot", "multibagger" or "before it is too late".
- Your own portfolio, checked more than weekly.
Base rates: the antidote to a compelling story
A vivid narrative about a company entering a huge new market is persuasive. The base rate — how often companies entering huge new markets actually succeed — is not vivid at all, and it is far more predictive.
Story versus base rate
The story is always more compelling. Check what the base rate says.
The three-question filter
- 1Who benefits from me believing this?
A brokerage recommending frequent trading, a channel needing viewers, a fund launching a product, an anonymous account that already owns the stock. Not necessarily dishonest — but the incentive is information.
- 2Would this change what I do?
If the answer is no, it is entertainment. Most market news is entertainment consumed with a serious expression.
- 3Is this a fact or a forecast?
A filing is a fact. A target price is a forecast dressed as a number. Both can be useful; only one is checkable.
Din bhar junk food khaoge toh tabiyat kharab hogi — sabko pata hai. Din bhar market news, tips aur reels dekhoge toh faisle kharab honge — yeh kisi ko pata nahi hota. Dono mein ek hi baat hai: kitna le rahe ho aur kahan se le rahe ho.
- Financial news must fill airtime daily; markets do not produce news daily.
- Daily explanations of index moves are constructed after the fact and are not actionable.
- Primary sources — filings, annual reports, transcripts — beat commentary about them.
- Check your portfolio weekly, not daily. It is free and it works.
- Against a compelling story, ask what the base rate is.
Mark it done to track your progress through the curriculum.
Common questions
Short, direct answers to what people ask about this topic.
- signal versus noise meaning in stock market
- Signal is information that would change what you actually do; noise is everything else that arrives dressed as information. Most of what has been added to a retail investor’s daily feed is noise, and noise does not merely fail to help — it degrades decisions by producing false confidence and prompting unnecessary action. A usable filter is to ask of anything you read whether it would change a decision; if not, it is entertainment.
- annual reports and exchange filings are examples of
- Primary sources — material published by the company or the exchange itself, with no interpretation layer between it and you. Annual reports, earnings call transcripts, shareholding and pledging disclosures, bulk deal data and credit rating rationales all sit in this category, and on the Indian exchanges they are free and barely read. Commentary about those documents is a secondary source and carries the commentator’s incentives with it.
- how often should I check my portfolio
- Weekly is enough for a long-term portfolio, and moving from daily to weekly is the highest-value change most investors can make at zero cost. It removes hundreds of opportunities to react, takes away most of the anxiety, and adds no useful information — the underlying businesses did not change between Tuesday and Wednesday.
- how do I check if someone is registered with SEBI before paying for advice
- SEBI maintains a public, searchable register of registered investment advisers and research analysts on its own website, and a legitimate adviser’s registration number should appear on their material for you to match against it. Verify it before paying anyone, because dealing with an unregistered adviser leaves you with very little recourse. Language such as “sure shot”, “multibagger” or “before it is too late” is a reason to stop regardless of what any registration says.
- how often does the Indian stock market fall 10 percent
- Historically a decline of 10% or more has arrived roughly once a year in Indian markets, and a 20%-plus decline every few years, with a recovery from every one of them so far. That is the relevant reference class whenever someone argues that this correction is different — but it describes the past and is not a promise about the future. Checking the base rate is the standard antidote to a story that is compelling precisely because it is vivid.