- The nine ways good analysis gets wasted
- A concrete countermeasure for each
- Why writing things down is the highest-leverage habit available
You can do everything in this course correctly and still lose money, because the analysis is only half the job. The other half is not undoing it afterwards. Every mistake below is common, well documented, and happens to people who know better.
1. Falling in love with the story
The narrative is vivid and memorable; the cash flow statement is neither. So the story wins, and the numbers get reinterpreted to fit it.
Run the forensic sweep before you read anything qualitative about the company. Numbers first, story second — in that order, every time.
2. Anchoring to your purchase price
"I'll sell when it gets back to what I paid." The market has no idea what you paid, and your cost has no bearing on what the business is worth.
Ask the only question that matters: at today's price, knowing what I know now, would I buy this today? If not, ownership is a decision you're re-making by default.
3. Confusing a falling price with a bargain
Down 60% feels like a discount. It's only a discount if the business is intact — and often the price fell because it isn't.
Re-run the numbers before adding to anything that's fallen. If earnings fell more than the price, it got more expensive, not less.
4. Ignoring the cash flow statement
It's the least readable of the three statements and the most informative. Skipping it is the most expensive shortcut available.
Cumulative CFO ÷ cumulative PAT over five years. One number, sixty seconds, and it eliminates a meaningful share of the disasters.
5. Over-diversifying, or not diversifying at all
Forty stocks means you can't possibly track any of them, and you've bought the index at higher cost. Three stocks means one accounting fraud takes a third of your capital.
Hold what you can genuinely follow — for most people that's somewhere between twelve and twenty-five positions. And size them so that being completely wrong about any one is survivable.
6. Judging your thesis by the price
The stock rose, so the analysis was right. The stock fell, so it was wrong. Over months, price movement tells you almost nothing about whether your reasoning held.
Judge the thesis against the results: did margins hold, did cash convert, did growth land where you expected? Those either happened or didn't, independent of the ticker.
7. Treating a forecast as a fact
Management guidance, analyst targets and your own DCF are all estimates. Precision is not accuracy — a value of ₹847.30 is no more reliable than "somewhere around ₹800–900", it just sounds like it is.
Work in ranges. Run every valuation at pessimistic, base and optimistic assumptions, and make decisions on the pessimistic case.
8. Averaging down without re-checking the thesis
Buying more as it falls is either conviction or denial, and from the inside the two feel identical.
Before adding, re-read your written thesis. Has anything in line 5 — what would prove me wrong — actually happened? If yes, adding is denial. If no, adding may be conviction. You cannot answer this without having written it down.
9. Not writing anything down
Memory is not a record — it edits itself continuously to match what later turned out to be true. Without notes you cannot learn from your own decisions, because you no longer have access to what you actually thought.
Five sentences per position, dated, kept somewhere permanent. Review them quarterly. This single habit does more for skill development over five years than any additional ratio.
- Falling for the storyCountermeasure: Forensic sweep before the narrative
- Anchoring to your costCountermeasure: "Would I buy this today?"
- Falling price = bargainCountermeasure: Re-run the numbers before adding
- Skipping cash flowCountermeasure: Cumulative CFO ÷ PAT, five years
- Wrong number of positionsCountermeasure: Hold what you can actually track
- Judging thesis by priceCountermeasure: Judge it against the results
- Forecast treated as factCountermeasure: Always work in ranges
- Averaging down blindlyCountermeasure: Re-read your written invalidation
- No written recordCountermeasure: Five sentences, dated, reviewed quarterly
Nearly every countermeasure on that list is the same underlying habit: decide in advance, in writing, what would change your mind — then check against it rather than against the price.
- ☐Write five sentences before every purchase, including a specific invalidation.
- ☐Run the cash-conversion check on everything, without exception.
- ☐Review holdings quarterly against results, never daily against price.
- ☐Re-read the thesis before adding to any losing position.
- ☐Keep a dated record of decisions — including the ones you decided against.
- ☐Accept that you will be wrong regularly, and size positions so that being wrong is survivable.
In one screen
- 1Good analysis is undone by predictable behaviour, not by missing ratios.
- 2Numbers before narrative; results before price.
- 3Work in ranges, never in false precision.
- 4The written, dated thesis with a specific invalidation is the highest-leverage habit in the whole course.
Check yourself
Nothing is scored or stored — the explanation after each answer is the point.
A stock you own has fallen 45% and reported worse results each quarter. You're considering buying more. What's the right first step?
Your stock is up 40% in six months. What does that tell you about the quality of your analysis?