# Hidden Smash Day

Detects Hidden Smash Day patterns and trades based on confirmation on the next bar.

Canonical: https://prismaticalgos.com/compendium/algo/166-hidden-smash-day
Record ID: 166
Catalog rank: 754 (reading order, not performance)
Snapshot: 2026-10-31 15:46 UTC
Family: Risk, Money Management & Portfolio Overlays (J)
Source: https://www.mql5.com/en/articles/21391
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: _Symbol
- timeframes: M15
- sessions: any
- market_regime: any

## Indicators

- ATR: {"period": 14}; applied to: close

## Recorded long-entry rules

- bar close higher than previous bar
- closing price within lower 25% of bar range
- optional: close below bar open

## Recorded short-entry rules

- bar close lower than previous bar
- closing price within upper 25% of bar range
- optional: close above bar open

## Recorded exit rules

- confirming bar closes above smash bar high for long
- confirming bar closes below smash bar low for short

## Recorded filters

- Not specified.

## Risk controls

- Stop loss: based on ATR or smash bar structure
- Take profit: not specified
- Position sizing: manual or auto based on account balance