Yen pip on a 100,000 euro notional
1.00 lot is 100,000 EUR. Yen pip conversion sits near $6.70. Spread 0.5 to 1.3 pips is friendlier than GBPJPY's 0.8 to 1.8. ATR 100 to 165 pips sits between EURUSD and The Dragon, which is why the 1% stop reference is 35 pips and 4.25 lots, not 20 pips/5.00 lots and not 45 pips/3.31 lots.
Handles 162.00, 162.50, 163.00 matter in Frankfurt. Tokyo 00:00 to 03:30 UTC is a real session because yen is half the pair. European morning 07:00 to 11:00 UTC is the other.
ECB plus BoJ, with less widowmaker noise
ECB press conferences and BoJ meetings are both red. European PMIs move this cross more cleanly than Cable PMIs move GBPJPY. H1 EMA50 pullbacks during Frankfurt are the signature setup when USD is quiet and the relative ECB/BoJ path is the story.
connect your MT5 account to Venasri and still black out both central banks. "Cleaner than GBPJPY" is not "safe through a BoJ headline."
4.25 lots at 35 pips
lots = 1000 / (stop pips × 6.70). At 35 pips: 1000 / 234.5 = 4.26, stored as 4.25 lots at 1%. At 0.50% that is 2.12 lots. Scalp 15 to 24, intraday 30 to 50, swing 75 to 130. Set 6.70 in the Half-Kelly Lot Size Calculator & Equity Guard.
If USDJPY or EURUSD is open, this cross overlaps both. Haircut. If GBPJPY is open, you already have yen-plus-Europe risk; adding EURJPY is a correlated second cross.
Frankfurt pullbacks, Tokyo yen, no dual-CB days
Trade Tokyo yen trend or Frankfurt EMA50 pullbacks at 00/50 handles, spread under 1.3, 35-pip-class stop. Skip stacked ECB+BoJ weeks at full size.
Put that on the Pre-Trade AI Confluence Checklist. EURJPY is the yen cross you size when GBPJPY's 40-pip bars are too much chaos for a 5% daily box.