{"schemaVersion":"1.0","type":"BacktestEvidence","id":"https://formiq.jp/evidence/settings-across-pairs/data.json","evidencePage":"https://formiq.jp/evidence/settings-across-pairs","language":"en","article":{"title":"Do Indicator Settings Transfer Between Pairs? 3,024 Tests","url":"https://formiq.jp/blog/settings-across-pairs","published":"2026-09-10","updated":"2026-09-10"},"author":{"name":"Yuichi Saiki","alternateName":"斉木勇一","url":"https://formiq.jp/about/yuichi-saiki"},"verified":"2026-09-10","question":"Does a setting found on USD/JPY still work on another currency pair?","finding":"The ordering does not carry. All 42 published settings ran on USD/JPY, EUR/USD, GBP/USD and EUR/JPY over 2023, 2024 and 2025 on three timeframes. Ranking the 42 by annual pips on USD/JPY and comparing with the same 42 ranked on another pair gives correlations from -0.515 to +0.47 across 27 cells, with a median of -0.011 and only 13 cells above zero. The count of settings profitable on both pairs differs from what two unrelated pairs would give by -4 to +6, median -0.2. Carrying USD/JPY's best setting of the year to another pair made money in 12 of 27 attempts. No setting was profitable on all four pairs in all three years, on any timeframe.","methodology":"Each article carries a \"run this setting\" button holding the rules it published; 44 of those exist and the three Bollinger articles publish identical rules, which leaves 42. Only the pair and the window were changed: rules, lot size, fill and spread stay as published. Pips are counted in each pair's own pip, and the year is also divided by that pair's mean 14-bar true range so four pairs sit in one column. 42 settings x 4 pairs x 3 timeframes x 3 years x 2 spreads (0.3 pips and 0) = 3,024 runs. Rank correlation is Spearman with tied ranks averaged. Every figure is checked in research/pairs-verify.run.ts.","scope":["Instruments: USD/JPY, EUR/USD, GBP/USD, EUR/JPY","Period: 2023-01-01 to 2025-12-31, split by year","Timeframes: 15-minute, 1-hour, 4-hour","Conditions: the 42 published settings"],"keyResults":[{"label":"Rank correlation with USD/JPY","value":"-0.515 to +0.47 across 27 cells, median -0.011, 13 above zero"},{"label":"Profitable on both, against two unrelated pairs","value":"Differs by -4 to +6, median -0.2"},{"label":"USD/JPY's best setting carried to another pair","value":"Made money in 12 of 27; ranks from 1st to 36th of 42"},{"label":"Profitable on all four pairs in all three years","value":"0 of 42 on every timeframe"},{"label":"How far the profitable count swings","value":"Hourly 2024: USD/JPY 36 of 42, EUR/USD 5, GBP/USD 6, EUR/JPY 8"},{"label":"Median year by pair, hourly","value":"USD/JPY is the only pair positive in all three years"},{"label":"Mean bar range, hourly","value":"USD/JPY 24.85 pips, EUR/USD 15.27, GBP/USD 17.12, EUR/JPY 24.72"}],"limitations":["Four pairs over three years.","Fills at the close, one 0.3 pip spread for every pair, no slippage; real spreads differ by pair.","One published setting per article, not that article's full parameter sweep.","Only one pair in the set leaves the dollar out, so the yen-versus-dollar question rests on EUR/JPY alone."]}