# Modified Nicolas' Trailing Stop

Trailing stop mechanism that uses HIGH and LOW to adjust stop loss for long and short positions.

Canonical: https://prismaticalgos.com/compendium/algo/3439-modified-nicolas-trailing-stop
Record ID: 3439
Catalog rank: 2911 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Trade & Execution Management (K)
Source: https://www.prorealcode.com/topic/modified-nicolas-trailing-stop-code/
Evidence label (unverified): source_code

## Scope and limitations

These are machine-extracted research records, not verified trading systems. Catalog rank measures specification detail and claimed evidence, not profitability. The catalog extraction pipeline did not independently backtest these records. Its separate selected testing ledger does not validate the wider corpus. Rules, labels and parameters can be incomplete or wrong; consult the original source and its reuse terms.

No endorsement, ownership claim or source-code reuse permission is implied.

## Extraction warnings

No automated warnings recorded; this is not validation.

## Recorded profile

- symbols: any
- timeframes: any
- sessions: any
- market_regime: any

## Indicators

No indicator stack recorded.

## Recorded long-entry rules

- Not specified.

## Recorded short-entry rules

- Not specified.

## Recorded exit rules

- IF newSL > 0 THEN SELL AT newSL STOP
- IF newSL > 0 THEN EXITSHORT AT newSL STOP

## Recorded filters

- Not specified.

## Risk controls

- Stop loss: adjusted based on HIGH and LOW
- Take profit: null
- Position sizing: null