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ALKSAlkermes Plc

NASDAQDaily chart
Range low retest · 15 Oct 2026

ALKS traded sideways between $42.19 and $55.28 for 4 mo, slipped below the range, and came back to test the low on 15 Oct 2026.

Range low
$42.19
support
Range high
$55.28
31% above the low
In the range since
Jun 2026
4 mo
Close on retest day
$40.10
5% below the range low
  • Previous range $30.32 – $36.45 lasted 1 yr 4 mo and broke upward at $44.57.
  • 5 sideways ranges found since 2022.
What is a range retest, and how do I read the chart?

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.

Daily chart

Sideways range history

RangeStartedEndedOutcomeRetests
8 Jun 2026Still open—15 Oct 2026
3 Feb 20254 Jun 2026 · 1 yr 4 moBroke above the range at $44.57—
29 Nov 202218 Feb 2025 · 2 yr 3 moBroke above the range at $36.45—
28 Apr 202227 Sept 2022 · 5 moBroke below the range at $21.81—
21 Jan 202228 Apr 2022 · 3 moBroke above the range at $32.79—

Retest signals

  • 15 Oct 2026 · 4 mo into the range

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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.