# Trailing Stop by Fixed Parabolic SAR

Modifies long positions using a trailing stop based on Parabolic SAR.

Canonical: https://prismaticalgos.com/compendium/algo/480-trailing-stop-by-fixed-parabolic-sar
Record ID: 480
Catalog rank: 1562 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Trend Following & Directional (A)
Source: https://www.mql5.com/en/code/39931
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: Not specified
- timeframes: Not specified
- sessions: Not specified
- market_regime: any

## Indicators

- Parabolic SAR: {"maximum": "InpPSAR_Maximum", "step": "InpPSAR_Step"}; applied to: null

## Recorded long-entry rules

- Not specified.

## Recorded short-entry rules

- Not specified.

## Recorded exit rules

- modifies position if trailing stop is triggered

## Recorded filters

- Not specified.

## Risk controls

- Stop loss: modified to be sl + (m_trailing_max - sl) * m_trailing_step
- Take profit: null
- Position sizing: null