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2002issue C091

Bound the next loss before the bear trade

A 2002 market commentary named risk-control as the central lesson of the then-current bear market and identified position-sizing as the most effective way to put that lesson into practice. Editorial view: treat a confidence shock as a pre-trade filter that sets an exposure-bound from account equity, volatility, and stop distance, then keep adjusting size as those inputs change.

  • A 2002 commentary named risk-control as the central lesson of the then-current bear market and presented money-management as a way to limit how severely account assets could be depleted.
  • Position-sizing was identified as the most effective way to put risk-control into practice, including simpler techniques when complex systems were not available.
  • The preferred approach used market-dynamics-adjustment, changing position size when market conditions change instead of keeping a fixed size.
  • Readers were cautioned not to let a period of success push them beyond their risk limits, and responsibility for protecting assets was placed with the individual rather than with market mood.
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Current trackVolatility position sizing57 readings

The central lesson of a long decline

A 2002 market commentary named risk-control as the central lesson of the then-current bear market. Risk-control is the practice of limiting how far assets can fall by deciding exposure before and during a trade rather than after a loss has already grown.

A two-year market decline was described as both unusually steep and unusually long for many investors, coinciding with capital leaving mutual funds. Money-management methods were presented as a way for traders to limit how severely account assets could be depleted. Money-management here means rules that govern how much capital may be placed at risk so that a sequence of losses does not empty the account.

Position-sizing when conditions change

Position-sizing was identified as the most effective way to put risk-control into practice. Position-sizing means choosing how large a position may be so that a single adverse move cannot deplete capital beyond a decided limit.

The preferred approach included systems that change position size when market conditions change. That is market-dynamics-adjustment: changing position size when volatility, stop distance, or other market conditions change instead of keeping a fixed size. The commentary noted that traders without access to complex systems still have simpler position-sizing techniques available.

An exposure-bound is a pre-committed ceiling on loss or market exposure that a trade must satisfy before it is allowed. Editorial view: apply that ceiling with volatility-position-sizing so the next loss is bounded before entry, then revise size if equity, volatility, or stop distance changes.

Limits after success, and who holds them

Readers were cautioned not to let a period of success push them beyond their risk limits. Risk-control practice included identifying both the type of trader one currently is and the type one should become.

Responsibility for protecting assets was placed with the individual rather than with the prevailing market mood.

Educational research material, not investment advice. Historical source context does not establish present-day performance.
7 of 25 in the Volatility position sizing track
20041-5 pp.Next on Volatility position sizingDollar-loss tolerance versus percent-of-equity stopsHolding planned loss at 2% of trading capital still lets the dollar amount at risk grow, and that larger cash figure can weaken the discipline to take a stop-loss.
All readings on this track · 25 readings
  1. 1988Two-sided optimization for volatility-scaled breakout rules
  2. 1990Weekly range volatility as a tactical regime filter
  3. 1993Heat first, then contract count on a weekly close-only breakout
  4. 1994Shared sigma for trend entries, retests and stops
  5. 1995The promised result as one testable trading procedure
  6. 2001Convert a survival ceiling into a volatility filter
  7. 2002Bound the next loss before the bear trade
  8. 2004Dollar-loss tolerance versus percent-of-equity stops
  9. 2004Bounded risk before entry: stop, size, and leverage
  10. 2006Position sizing as the pre-trade bound on loss and exposure
  11. 2006A trend-regime matrix for volatility position sizing
  12. 2011A premarket range checklist for opening-hour breakouts
  13. 2011Stop-defined share count on a clustered intraday short
  14. 2012Mechanical system design with strategy, signals, and size
  15. 2012Precommit size before a one-day policy shock
  16. 2013R-multiple expectancy, drawdown, and volatility position sizing
  17. 2014Constructing trend-aware slope-divergence rules
  18. 2014Pretrade drawdown fences and volatility sizing
  19. 2015Convert pip value into cash before a forex lot size is chosen
  20. 2016Expectancy as an execution skill rather than a backtest score
  21. 2017Volatility parity equalizes the ticket; implied volatility is a regime dial
  22. 2018Wide-range breakout rules from chart volatility
  23. 2019A structure-based stop, then resize or pass
  24. 2020A cash rule that zeros a trend book on extreme volatility and a short losing window
  25. 2025R-multiples before you size up
By fieldSizing and leverage109 readingsBy year2002145 readings
All 57 readings tagged Volatility position sizing
Also on Volatility position sizing5 readings
1987Volatility-layered mechanical system with fixed contracts1988Two-sided optimization for volatility-scaled breakout rules1989Measured range, scale-in ladders, and spread replay as a cash-reserve design1990Weekly range volatility as a tactical regime filter1992Sizing capital from degraded records and volatility