MMasters in Business
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FinanceAlan Shaw

Small-Loss, Big-Profit Discipline

Define risk early, cut failed calls, and preserve winning trends

Difficulty
Advanced
Time to result
~ongoing to results
Steps
5
Confidence
98%

Before entering a position, use technical evidence to define a price or structural point that would indicate the call is probably wrong. Size the position so an exit there produces a tolerable loss, then act when that point is reached instead of allowing hope, pride, or a company narrative to override the rule. At the same time, avoid taking profits merely because a winner has become large; remain with the position while its supporting trend is intact. Shaw reduces outcomes to small losses, large losses, small profits, and big profits, then states the desired combination: minimize large losses while remaining available for big profits. The mechanism creates positive asymmetry by controlling downside without imposing an equally tight ceiling on upside.

Origin

Extracted from Masters in Business, where Alan Shaw summarized what technical analysis taught him about risk after decades of market practice.

Core principles

  • 01Every market call can be wrong
  • 02Risk points turn uncertainty into controlled exposure
  • 03Small losses preserve capital for future opportunities
  • 04Large profits require room for valid trends to continue

How to run it

  1. 1

    Define invalidation

    Identify the price level or structural change that would show the thesis is failing. Write it down before entering the position.

    Pro tip Base the level on market structure rather than an arbitrary amount of money.

    Watch out A risk point chosen after losses begin is vulnerable to emotional revision.

  2. 2

    Size for the loss

    Choose a position size that makes the loss at invalidation acceptable within the portfolio. Reduce size when the required stop is wide.

    Pro tip Calculate risk at the portfolio level when positions are correlated.

    Watch out A sensible stop cannot rescue an oversized position from poor risk management.

  3. 3

    Exit failed calls

    Close or reduce the position when the invalidation condition occurs. Treat the exit as execution of the process rather than a personal verdict.

    Pro tip Automate the action when hesitation is a recurring problem.

    Watch out Do not let a small planned loss become a large unplanned one.

  4. 4

    Let valid winners continue

    Hold winning positions while their technical evidence remains favorable. Tighten risk only when the evolving structure justifies doing so.

    Pro tip Use trailing structural levels rather than fixed profit targets for strong trends.

    Watch out Taking every small gain can prevent big winners from paying for inevitable losses.

  5. 5

    Audit outcome asymmetry

    Classify completed trades as small losses, large losses, small profits, or big profits. Adjust the process to suppress large losses without eliminating big profits.

    Pro tip Review the distribution of outcomes, not only the win rate.

    Watch out A high win rate can conceal poor performance if occasional losses are enormous.

In the wild

A disciplined trend position

An investor buys after a confirmed breakout and places invalidation below the supporting structure. The stock initially dips but does not breach that level, then advances for months. The investor trails the risk point as new support forms instead of taking a quick fixed profit.

→ Downside remains predefined while the position retains the possibility of an outsized gain.

Common mistakes

Moving the risk point away

Widening invalidation after the market moves against the position converts controlled risk into hope.

Cutting every winner quickly

Frequent small profits cannot offset occasional large losses if valid trends are never allowed to mature.

Judging success by win rate

Outcome size matters more than the percentage of trades that happen to be profitable.

Is it for you?

Best for

It is best for active investors and traders who can define observable invalidation points.

Not ideal for

It is not ideal for positions that cannot be exited promptly or whose prices are too illiquid for dependable risk controls.

From the transcript

“you can set risk points in a k A stop losses.”

Alan Shaw · 52:17

“maybe you made the wrong call and not let the loss run and let the profit run.”

Alan Shaw · 52:23

“We're in we're in for the big profits and the small losses as possible.”

Alan Shaw · 52:36

From the episode

Alan Shaw Says the Days of Charting Stocks By Hand Are Over

Alan Shaw

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