Case Study

AI still recommends companies that no longer exist.

We queried 11 AI models about semiconductor brands. Companies acquired years ago still score 70+ out of 100.

$117 billion in acquisitions. The brands are gone. AI remembers.

$117B

Total acquisition value

6

Ghost brands measured

70+

Average AI score today

Data from 11 AI models. Week 02 of 2026.

The measurement

Between December 2025 and January 2026, we asked 11 AI models to rate brands across hundreds of electronics categories. These acquired companies—some gone for nearly a decade—still rank among the top recommendations.

Ghost BrandAcquirerDealScore
XilinxAMD (2022)$49B72.5
Linear TechnologyAnalog Devices (2017)$14.8B72.5
Maxim IntegratedAnalog Devices (2021)$21B67.6
FreescaleNXP (2015)$11.8B68.9
CypressInfineon (2020)$10B70.2
MicrosemiMicrochip (2018)$10.3B70.4

Scores represent average category strength (0-100) across all rated categories.

Ghost vs. acquirer: who wins?

When both brands are rated in the same category, who scores higher?

Xilinx vs AMD$49B acquisition (2022)
Ghost: 30 wins
AMD: 13

AMD paid $49B. Xilinx still dominates 70% of head-to-head matchups.

Freescale vs NXP$11.8B acquisition (2015)
Ghost: 34 wins
NXP: 33

Ten years later. Still a dead heat. AI hasn't forgotten Freescale.

Linear Technology vs Analog Devices$14.8B acquisition (2017)
Ghost: 27
ADI: 44 wins

ADI absorbed the brand better—but Linear still wins 38% of matchups, 8 years later.

Cypress vs Infineon$10B acquisition (2020)
Ghost: 6
Infineon: 16 wins

Best absorption. Infineon successfully transferred AI perception to the parent brand.

Where ghosts still score 98-100

In these categories, the acquired brand scores near-perfect—higher than most active companies.

Xilinx (AMD)

FPGAs100 (Perplexity)
FPGAs99 (Gemini, AI21, DeepSeek)
System-on-Chip98 (AI21)

Linear Technology (ADI)

Power Management ICs98 (6 models)
High-Performance Analog98 (Anthropic)
ADCs98 (Cohere)

Maxim Integrated (ADI)

Operational Amplifiers100 (AI21)
Voltage References100 (AI21)
Oscillators100 (AI21)

Microsemi (Microchip)

Radiation-Hardened ICs98 (Anthropic)
Aerospace Semiconductors98 (Anthropic)
Rad-Hard FPGAs98 (DeepSeek)

Is this a problem?

We measured. We don't prescribe. Three interpretations:

1. Lost mindshare

The acquirer paid billions to consolidate brand equity. If AI keeps recommending the ghost brand, that equity wasn't transferred. The acquisition's brand value may have evaporated.

2. Ghost doors

The acquired brand's AI presence is an asset, not a liability. If 70% of AI recommendations flow through the ghost brand, invest through that door. Keep the legacy content alive.

3. The gap

AI perception doesn't match market reality. Distributors know Linear Technology = Analog Devices. Someone profits from bridging that gap between what AI recommends and what's actually available.

AMD paid $49 billion for Xilinx.
AI still thinks Xilinx is a separate company.
Who owns that perception?

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Methodology: CategoryRank queried 11 AI models (GPT-4o-mini, Claude, Gemini, Mistral, Cohere, AI21, xAI, Perplexity, DeepSeek, Qwen, Groq-Llama) weekly from December 2025 through January 2026. Each model rated brands on a 0-100 scale for category association strength. "Ghost wins" counts category/model pairs where the acquired brand scored higher than the acquirer. Acquisition values from public filings. Full methodology →