DUOL slipped below its $263.68 – $412.88 range and came back to test the low on 26 Nov 2025.
A stock moves sideways between a floor (the range low) and a ceiling (the range high) for a long time. Then it drops below the floor, fails to climb back in, and returns to test that low again. Traders also call this a spring. Some springs mark the end of a decline; many don't.
On the chart, each candle is one trading day. The purple lines are the range the signal came from, and the green Retest label marks the day RangeStocks flagged. Tick “Show past sideways ranges” to see earlier ranges.
| Range | Started | Ended | Outcome | Retests |
|---|---|---|---|---|
| 17 Aug 2026 | Still open | — | — | |
| 26 Feb 2026 | 29 Jul 2026 · 5 mo | Broke above the range at $143.80 | — | |
| 27 Feb 2025 | 21 Jan 2026 · 11 mo | Broke below the range at $142.10 | 26 Nov 2025 | |
| 21 Feb 2024 | 8 Nov 2024 · 9 mo | Broke above the range at $330.61 | — | |
| 13 Mar 2023 | 6 Jun 2023 · 3 mo | Broke above the range at $168.40 | — | |
| 11 Jan 2022 | 7 Dec 2022 · 11 mo | Broke below the range at $66.01 | — |
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Past patterns don't predict future price moves. This page shows what an automated algorithm detected and is not financial advice. Read the disclaimer.