Maetis
Decision Intelligence
Mastering Yourself · Unit 4

Performance Reviews

9 min read

1

Hook

Two Boards at the Carrom Club

Every Saturday, Rohan and Kiran met at the carrom club two lanes from Kiran's house in Kothrud. They played two games, drank cutting chai, and talked about their trades — small positions, nothing dramatic, just money they'd set aside to learn the market with.

Both of them took reviewing seriously. The same evening a trade closed, they'd sit with it for ten minutes — why did I enter, did the exit make sense, would I do it again. Rohan was almost proud of this habit. "Not everyone does this, yaar," he'd say, flicking the striker. "Most people just trade and forget."

But something didn't add up. Most months, both of them closed slightly in the red. Not big losses. Just a quiet, steady leak, like a bucket with a pinhole no one could find.

"I checked every single trade this month," Rohan said one Saturday, missing an easy corner shot out of frustration. "Every one. Entry was fine. Exit was fine. I don't understand where the money is going."

Kiran nodded slowly. "Same. I don't even remember a trade where I thought — this was a bad decision. Each one made sense at the time."

They sat with that for a minute, watching the coins scatter on the next break.

"Maybe," Kiran said, half-joking, "the problem isn't in any one trade at all."

Rohan didn't answer. He was busy re-racking the board, already planning to review Monday's trade extra carefully that evening — as if reviewing harder was the fix he was missing.

2

Learning Objectives

  • Explain why stepping back to review a batch of past decisions together reveals something a single-decision review cannot.
  • Distinguish periodic batch review from single-trade review and from portfolio snapshot review by what each one is actually checking.
  • Identify why a repeating pattern across many decisions is more trustworthy than any one standout win or loss.
  • Set up a recurring, scheduled habit of reviewing a batch of recent decisions together rather than only reacting after each one.
3

Core Concept

You already know how to review a single decision. You check a trade the evening it closes — was the entry sound, did the exit make sense. You also know how to check your portfolio's numbers now and then. Both of those are useful. Neither of them can catch the one thing that's actually costing you money over time.

Here's why. A habit that repeats — say, always selling winners too fast, or always trading right after a bad day — can look completely fine every single time you check it. Each individual decision passes the test: the entry made sense, the exit made sense. There's nothing wrong to flag. The problem was never inside any one decision. It was in what kept happening across many of them.

That's the idea behind a periodic review: stepping back on a schedule, once a month say, to look at a batch of your past decisions together, not one at a time. This is a different skill from checking a single trade, and different from glancing at portfolio numbers — those look at one decision or one moment. A periodic review looks at your behavior spread across time.

A pattern only becomes visible when decisions are laid side by side, not checked one at a time.

And this is where the real shift happens: a pattern only becomes visible when decisions are laid side by side, like photos placed together in an album instead of viewed one at a time.

Once you lay several decisions next to each other, something a single review could never show starts to stand out — a decision pattern. Maybe every trade you held past a week lost money, while every trade you sold within a day made money. No single review would flag that, because each of those decisions looked reasonable in isolation. It only shows up in the batch.

This also tells you why a pattern deserves more trust than your best or worst single trade. One incredible win or one painful loss can simply be luck — good or bad. But something that repeats across ten or twenty decisions isn't luck. It's you. That's the real reason this habit matters: not to recalculate your numbers, but to read your own decision trail honestly, so you start seeing what's actually repeating instead of chasing the last big outcome.

4

Visual Understanding

One Decision at a Time
Looks fine, on its own
A Batch, Side by Side
The pattern only shows up together
5

Real-life Example

Back at the carrom club, Kiran pulls the scorepad toward him and starts writing. Not one trade — all ten from the last month, one under the other. Next to each, he jots two things: was the entry logic sound, and was the exit reasonable. Every single line gets a tick. Ten out of ten, clean.

"See," he says, sliding it toward Rohan. "Told you — nothing wrong with any of them."

Then, almost as an afterthought, he adds a third column: how many days he held each trade before closing it. He fills it in and sits back to look at the whole sheet at once, not line by line this time, but all ten together.

That's when he sees it. Every trade marked as a win was sold within a single day. Every trade marked as a loss had been held for six days or more. Same person, same month, same "sound entry, reasonable exit" tick mark on every line — but a dead-even split in how long he waited depending on which way the trade was going.

"I sell winners fast and I sit on losers," Kiran says slowly. "Every single review I ever did missed this. Because each one, on its own, looked fine."

Rohan leans over the scorepad, quiet for once, doing the same count for his own trades in his head.

Point: A repeating behavioral pattern can be completely invisible in single-decision reviews and only surface when a batch of decisions is laid out and read together.

6

Deep Dive (optional)

It's easy to mix this up with the portfolio snapshot you already learned in Level 6, since both involve looking at more than one thing at once. But they're answering completely different questions. A portfolio snapshot looks at what you currently hold — your positions and metrics at one moment, like a photo of your bag's contents right now. A periodic batch review looks at how you've behaved across time — a stretch of past decisions laid out together, like flipping through several photos from different days. One is a snapshot of a moment. The other is a study of a trail. You need both, but only the second one can show you a repeating habit, because a single snapshot, however detailed, is still just one photo.

7

Common Mistakes

  • Believing that reviewing every trade carefully, right after it closes, means you've done all the reviewing you need to do. — Each individual review feels thorough — the entry made sense, the exit made sense — so it seems like nothing could be missing. Fix: Treat single-trade review and periodic batch review as two separate habits. Keep doing the first, but also schedule the second — a fixed day each month to look at several decisions together.
  • Thinking a periodic batch review is basically the same thing as checking your portfolio's numbers now and then. — Both involve looking at more than one trade at a time, so they feel interchangeable. Fix: Remember what each one is actually checking: a portfolio snapshot checks your current holdings at one moment; a batch review checks your behavior across many past decisions. Keep both, but don't let one replace the other.
  • Treating your single best or worst trade as the most important lesson about your decision-making. — Standout wins and losses are emotionally memorable, so they feel like they must mean something big. Fix: Ask instead: does this happen again and again, or was it a one-time thing? Only what repeats across many decisions tells you something reliable about yourself.
8

Key Takeaways

  • Checking one decision at a time can hide a pattern that's quietly repeating across many decisions.
  • A periodic batch review — stepping back on a schedule to look at several past decisions together — is a separate skill from single-trade review or a portfolio snapshot.
  • Patterns are more trustworthy than any single best or worst outcome, because one great or terrible trade can just be luck.
  • Schedule your batch review in advance, like once a month, instead of only reviewing when a win or loss triggers you to look back.
  • Reading your decision trail honestly over time is what actually improves your judgment as a decision-maker.
9

Quiz

Q1. What is a 'periodic batch review' in the context of reviewing your money decisions?

  • Stepping back on a schedule to look at a group of past decisions together
  • Checking a single trade the same evening it closes
  • Glancing at your portfolio's current holdings and metrics
  • Reviewing only your best or worst trade of the month Answer: Stepping back on a schedule to look at a group of past decisions together — A periodic batch review means deliberately setting aside time, on a schedule, to look at several past decisions side by side — not just checking one trade right after it happens.

Q2. Why can a repeating costly habit stay invisible even if you carefully review every single trade right after it closes?

  • Because each individual decision can look reasonable on its own, so nothing seems wrong to flag
  • Because single-trade reviews are always done too quickly to notice anything
  • Because portfolio snapshots already catch every repeating pattern
  • Because reviewing a single trade is not actually useful at all Answer: Because each individual decision can look reasonable on its own, so nothing seems wrong to flag — A pattern like always exiting winners early can pass every single-trade check, since each trade's own logic looks fine in isolation. It only becomes visible when several decisions are laid out and compared together.

Q3. A portfolio snapshot review (from Level 6) and a periodic batch review are the same thing, since both involve looking at more than one trade at once. Answer: False — A portfolio snapshot looks at your current holdings and metrics at one moment in time. A periodic batch review looks at your behavior and decision patterns spread across time. They answer different questions, even though both involve multiple trades.

Q4. Why is a pattern that repeats across many decisions more trustworthy than a single standout win or loss?

  • Because a single win or loss can simply be luck, while something that repeats reflects a real behavior
  • Because single decisions are never worth reviewing at all
  • Because patterns always predict exactly what will happen next in the market
  • Because standout wins and losses are never emotionally memorable Answer: Because a single win or loss can simply be luck, while something that repeats reflects a real behavior — One incredible win or painful loss can happen by chance. But when the same behavior shows up again and again across many decisions, that's much less likely to be luck — it reflects something real about how you decide.

Q5. A trader reviews every trade right after it closes and has never once looked at a month's worth of decisions together. Is per-trade review by itself a complete review habit? Reveal: Weak: yes, reviewing every trade individually is thorough enough. Strong: single-trade review can't reveal a pattern repeating across many decisions — that only shows up in a scheduled batch review, a separate habit from a more-detailed single-trade check.

10

Curiosity Bridge

Somewhere between one trade and the next, a version of you is quietly repeating itself — and no single glance back has ever been enough to catch it.

This week, try: Pick one fixed day each month right now — say, the 1st — and decide you'll spend ten minutes that day looking back at your last 5-10 money decisions together, side by side, instead of one at a time. (Say your chosen date out loud right now — for example, 'the 1st of every month, ten minutes' — and set a repeating phone reminder for it before you move on.)

Have you ever looked back at your last several money decisions together, side by side, instead of just one at a time? Yes/No

(Binary Yes/No with optional one-line elaboration)

Play long-term games with long-term people.
Naval Ravikant