{"schemaVersion":"1.0","type":"BacktestEvidence","id":"https://formiq.jp/evidence/stc-settings/data.json","evidencePage":"https://formiq.jp/evidence/stc-settings","language":"en","article":{"title":"STC Periods and Entry Levels: 72 Settings Tested","url":"https://formiq.jp/blog/stc-settings","published":"2026-08-24","updated":"2026-08-30"},"author":{"name":"Yuichi Saiki","alternateName":"斉木勇一","url":"https://formiq.jp/about/yuichi-saiki"},"verified":"2026-08-30","question":"Across STC's four parameters, which timeframe and setting stay profitable?","finding":"The hourly and four-hour charts. Settings profitable in both years numbered 49 of 72 hourly and 36 of 72 on four-hour bars, against 10 of 72 on 15-minute bars, where the version trades about 1,400 times a year. On four-hour bars 10/30/5 with a level of 25 made +3,399.7 pips in 2025 and +3,014.6 in 2024, the largest of the 72 in both years. The hourly default made +1,718.3 pips in 2025 and +1,721.7 in 2024, a difference of 3.4 pips, but the largest 2025 result, 23/80/10 at level 40, was +3,024.7 — a default profitable in both years is not the setting with the largest annual net. The best level also changed with the timeframe, so it cannot be chosen in isolation.","methodology":"Measured with Formiq's backtester. A long fills at the close of the bar where STC crosses above the level (10, 25 or 40) and a short where it crosses below 100 minus the level; the only exit is the opposite level crossing. No stop, no target, no time exit.","scope":["USDJPY, 2025-01-01 to 2025-12-31, with 2024 run identically for comparison","15-minute, hourly and four-hour bars; 6,226 hourly bars in 2025, 24,903 on 15-minute, 1,610 on four-hour","3 fast (10, 23, 40) x 3 slow (30, 50, 80) x 3 stochastic periods (5, 10, 20) x 3 levels, keeping fast < slow: 72 combinations","0.3 pip spread, 0.1 lots, zero slippage"],"keyResults":[{"label":"Profitable in both years","value":"49 of 72 hourly, 36 of 72 four-hour, 10 of 72 on 15-minute"},{"label":"Four-hour 10/30/5 at level 25","value":"+3,399.7 pips in 2025 and +3,014.6 in 2024, the largest in both years"},{"label":"The hourly default","value":"+1,718.3 pips in 2025, +1,721.7 in 2024; the 2025 maximum was +3,024.7"}],"limitations":["One pair, two years.","STC implementations differ in the smoothing constants inside the double stochastic. These figures come from Formiq's.","Entries and exits both fill at bar closes, and the spread is modelled as a flat 0.3 pips.","Four-hour settings trade 57 to 172 times a year: wide numbers at that count."]}