ATR Trend Follow for USDJPY (USD/JPY)

Volatility-adjusted trend following — trail stops by ATR multiples.

Why ATR Trend Follow Works on USDJPY

A simple EMA trend with ATR-based exits. Stop and trailing stop scale with the asset's realised volatility, so the same code works on quiet EUR/USD and wild Bitcoin. ATR multipliers (typically 2-3×) are the only parameter you need to tune per market.

USD/JPY is heavily driven by yield differentials and BoJ policy. Slow-grinding trends on the daily, predictable Tokyo-session ranges — a strong fit for swing and trend bots.

Forex pairs trade with tight spreads, deep liquidity, and predictable session-based behavior. The strategy below earns its edge during the active sessions for this pair.

Pine Script Source

Copy this into PineForge — backtest on USDJPY or any supported symbol, then deploy as a live bot.

//@version=5
strategy("ATR Trend Follow", overlay=true)

ema_len = input.int(21, "EMA Length")
atr_len = input.int(14, "ATR Length")
atr_mult = input.float(2.5, "ATR Multiplier")

ema = ta.ema(close, ema_len)
atr = ta.atr(atr_len)

long_stop = close - atr * atr_mult

if close > ema and close[1] <= ema[1]
    strategy.entry("Long", strategy.long)

if strategy.position_size > 0
    strategy.exit("Trail", from_entry="Long", stop=long_stop)