STRATEGY E019 · ALTERNATIVE SYSTEM

FathomTurn 探深转向

Wait for the tide to turn, then let the smooth line steer — a demand-supply gauge crossing its midline, confirmed by an adaptive trend line.

Core Idea

FathomTurn fires only when two independent conditions nod at once, so choppy, directionless drift is filtered out.

🌊 Demand-supply gauge (DeMarker)

Compares how far each bar's high pushes up vs. how far each low pushes down, blended into a clean 0–1 line. Crossing above 0.5 = buyers take the wheel; below = sellers.

🛡️ Smooth adaptive line (JMA)

A fast-yet-silky adaptive trend line. Its slope direction decides which side is allowed — we glide with the bigger flow, not against it.

Signal Logic

signal

Fig 1 — Signal judgement: gauge crosses 0.5 · smooth line agrees · activity gate

Entry Windows

LONG ↑

  • ① Gauge crosses ABOVE 0.5
  • ② Smooth line slopes UP
  • ③ Active: ATR ≥ floor

SHORT ↓

  • ① Gauge crosses BELOW 0.5
  • ② Smooth line slopes DOWN
  • ③ Active: ATR ≥ floor

Execution Flow

flow

Fig 2 — One evaluation per closed H1 bar, single position, magic-number isolated

Parameters (defaults)

DeMarker period14
Midline0.5
JMA length10
JMA slope lookback3 bars
ATR period14
Activity floor0.6 × 50-bar avg
Stop-loss1.5 × ATR
Reward-to-risk1.8
TimeframeH1 (M30–H4)
Max trades / day10
Risk per trade1% balance
Sim. frequency≈ 1.6 / day
⚠️ Educational sharing only — not investment advice and no promise of returns. Markets carry drawdown risk. Backtest 1–2 years of H1 data in the Strategy Tester and trade on a demo account first.