Communication Services · classic falling knives · updated 2026-09-10
10 Communication Services falling knives.
Every Communication Services stock on this page is down 30% or more from a 52-week high that was set inside the last 120 days — the textbook steep-and-recent pattern. Names are tiered by decline depth, decline sigma, and time-frame continuity. For the broader cut of Communication Services stocks (anything 20%+ off any 52-week high, including slow grinders), see the full Communication Services sector page.
| Tier | Ticker | Company | Decline | Days since high | Sigma | Price |
|---|---|---|---|---|---|---|
| Red List |  9412.T |
SKY PERFECT JSAT CORPORATION | -58.7% | 106d | 11.0σ | 1,951.00 JPY |
| Red List |  002181.SZ |
GUANGDONG MEDIA | -57.1% | 115d | 2.9σ | 9.23 CNY |
| Red List |  SESG.PA |
SES | -52.6% | 104d | 7.3σ | 4.69 EUR |
| Red List |  PCLA |
PicoCELA Inc. | -50.4% | 31d | 2.9σ | $9.72 |
| Red List |  CXDO |
Crexendo, Inc. | -49.1% | 101d | 9.4σ | $5.71 |
| Red List |  KVHI |
KVH Industries, Inc. | -45.1% | 107d | 5.3σ | $7.14 |
| Red List |  LFTO |
Liftoff Mobile, Inc. | -41.7% | 97d | 4.7σ | $17.55 |
| Red List |  GRPN |
Groupon, Inc. | -38.9% | 36d | 10.2σ | $18.28 |
| Red List |  ECHO |
EchoStar Corporation | -37.6% | 115d | 3.5σ | $91.85 |
| Red List |  CRTO |
Criteo S.A. | -31.3% | 66d | 3.4σ | $17.37 |
Classic means both: depth at the Amber threshold or above, and a peak inside the last 120 days. Methodology.
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