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$AMD support and resistance levels, and what followed

Advanced Micro Devices - October 21 regular-session single chart

Each note as it was published, with the price that followed. We publish where price sits against its own levels, not where it is going, so nothing here is scored as right or wrong. Educational commentary, not investment advice.

6 notes, newest first, back to Mon, 12 Oct 2026.

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Wed, 21 Oct 2026

554.24 October 21 regular-session observation / separate from daily candles

$AMD $554.24, above 50-day $539.54. 200-day $397.42. Oct 20 high/low $548.11/$524.60.

AfterClosevs Wed, 21 Oct 2026 closevs published price
1 session507.93—-8.36%

This note was marked to a October 21 regular-session observation / separate from daily candles, not a close. The like-for-like column is the one measured from the Wed, 21 Oct 2026 close.

  • October 20 regular close 534.74 — published above, latest close belowcrossed
  • 20-session SMA through October 20 602.08 — published below, latest close below
  • 50-session SMA through October 20 539.54 — published above, latest close belowcrossed
  • 200-session SMA through October 20 397.42 — published above, latest close above
  • Oct 20 intraday high 548.11 — published above, latest close belowcrossed
  • Oct 20 intraday low 524.60 — published above, latest close belowcrossed
  • 2026-09-08 daily gap $478.83 to $480.33 478.83 — published above, latest close above
AMD chart published Wed, 21 Oct 2026
Mon, 19 Oct 2026

539.00 October 19 regular-session observation; not a completed daily close

$AMD — $539.00, above the 50-day ($537.14). Friday high $550.96; Friday low $526.83. 20-day: $610.40.

AfterClosevs Mon, 19 Oct 2026 closevs published price
1 session534.74—-0.79%
  • October 16 regular close 528.75 — published above, latest close belowcrossed
  • 20-session SMA through October 16 610.40 — published below, latest close below
  • 50-session SMA through October 16 537.14 — published above, latest close belowcrossed
  • 200-session SMA through October 16 394.25 — published above, latest close above
  • Oct 16 intraday high 550.96 — published below, latest close below
  • Oct 16 intraday low 526.83 — published above, latest close belowcrossed
  • Sep 8 gap $478.83-$480.33 478.83 — published above, latest close above
AMD chart published Mon, 19 Oct 2026
Sat, 17 Oct 2026

May 2026 confirmed winner; common exit in June 2026. Test the Theory, data through October 15, 2026.

AfterClosevs Sat, 17 Oct 2026 closevs published price
1 session538.05——
5 sessions516.79——

This note was marked to a Historical study; no current quote, not a close. The like-for-like column is the one measured from the Sat, 17 Oct 2026 close.

AMD chart published Sat, 17 Oct 2026
Thu, 15 Oct 2026

545.24 October 15 regular-session snapshot 2026-10-15T10:45:08-04:00

AMD: $545.24 (-4.48% versus October 14 regular close) at the October 15 10:45 a.m. ET regular-session snapshot.

AfterClosevs Thu, 15 Oct 2026 closevs published price
1 session528.75-5.95%-3.02%
5 sessions507.93-9.66%-6.84%

This note was marked to a October 15 regular-session snapshot 2026-10-15T10:45:08-04:00, not a close. The like-for-like column is the one measured from the Thu, 15 Oct 2026 close.

  • Oct 15 high / 10:45 550.81 — published below, latest close below
  • Oct 14 low / reclaim 567.00 — published below, latest close below
  • Oct 15 low / 10:45 530.09 — published above, latest close belowcrossed
  • 20-session SMA through October 14 611.097 — published below, latest close below
  • 50-session SMA through October 14 534.745 — published above, latest close belowcrossed
  • 200-session SMA through October 14 390.947 — published above, latest close above
AMD chart published Thu, 15 Oct 2026
Thu, 15 Oct 2026

549.38 October 15 regular-session observation (refreshed Version 2)

AMD: $549.38 (-3.76% versus October 14 regular close). Refreshed October 15 regular-session snapshot, Version 2.

AfterClosevs Thu, 15 Oct 2026 closevs published price
1 session528.75—-3.76%
5 sessions507.93—-7.54%

This note was marked to a October 15 regular-session observation (refreshed Version 2), not a close. The like-for-like column is the one measured from the Thu, 15 Oct 2026 close.

  • Oct 15 high 550.977 — published below, latest close below
  • Oct 14 low / reclaim 567.00 — published below, latest close below
  • Oct 15 low 530.09 — published above, latest close belowcrossed
  • 20-session SMA through October 14 611.097 — published below, latest close below
  • 50-session SMA through October 14 534.745 — published above, latest close belowcrossed
  • 200-session SMA through October 14 390.947 — published above, latest close above
AMD chart published Thu, 15 Oct 2026
Mon, 12 Oct 2026

590.27 live price during the 12 October session

AMD is 9.1% below its 6 October close of 649.42, marked at 590.27.

AfterClosevs Mon, 12 Oct 2026 closevs published price
1 session605.53+1.90%+2.59%
5 sessions538.05-9.46%-8.85%

This note was marked to a live price during the 12 October session, not a close. The like-for-like column is the one measured from the Mon, 12 Oct 2026 close.

  • 6 October close 649.42 — published below, latest close below
  • 9 October close 608.10 — published below, latest close below
AMD chart published Mon, 12 Oct 2026

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