Movers note · 2026-10-18

Down 33.5%: Cipher Mining on the tape — Oct 18, 2026

Cipher Mining fell 33.5%, $5.6B to $3.7B. 4 more moved the same distance the same day.

Same-day note generated from the wafergraph dataset · data as of 2026-10-18 · every figure is computed, none is written by hand

Market-cap moves

5 companies moved 8.0% or more today against a market cap of at least $1.0B.

  1. 1 Cipher Mining -33.5% $5.6B → $3.7B
  2. 2 Applied Optoelectronics -31.0% $9.3B → $6.4B
  3. 3 Ichor Holdings -29.5% $2.2B → $1.6B
  4. 4 21Vianet -29.1% $1.6B → $1.1B
  5. 5 Hwatsing Technology +13.4% $16.7B → $19.0B

Source: wafergraph live market caps (Yahoo Finance × SEC shares). As of 2026-10-18.

Cite as: wafergraph, “Down 33.5%: Cipher Mining on the tape — Oct 18, 2026”, https://wafergraph.com/notes/2026-10-18/ (data as of 2026-10-18).

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