Communication Services · classic falling knives · updated 2026-10-16
5 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 |  MTN.JO |
MTN Group Ltd | -65.2% | 77d | 4.0σ | 18,710.00 ZAR |
| Red List |  2309.HK |
ZO FUTURE GROUP | -53.5% | 116d | 2.0σ | 1.75 HKD |
| Red ListRecovering |  RUM |
RUM Group Inc. | -46.3% | 52d | 10.7σ | $5.69 |
| Red List |  GRPN |
Groupon, Inc. | -44.6% | 72d | 5.1σ | $16.57 |
| Red ListRecovering |  CRTO |
Criteo S.A. | -39.3% | 102d | 4.3σ | $15.34 |
Classic means both: depth at the Amber threshold or above, and a peak inside the last 120 days. Methodology.
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