HIGHBuilt-inProduct / Revenue mix
89%
automotive rearview mirrors and electronics
“10-K Item 1: 'Automotive rearview mirrors and electronics accounted for 89% of the Company's consolidated net sales in 2025'”
GNTX · Concentration risk · 10-K extracted
Gentex (GNTX) concentration risks
Updated
The most significant concentration Gentex discloses is automotive rearview mirrors and electronics at 89%, classified HIGH by disclosed size. Below: the full set from the latest 10-K — verbatim quotes, filing references, and a synthesis of what these exposures mean together.
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Source: Gentex’s SEC Form 10-K filed — view the filing on SEC EDGAR ↗
At a glance
Disclosed-size breakdown · 2 disclosed concentrations
HIGH1
MEDIUM0
LOW1
Disclosed concentrations
Each card carries a disclosed-size chip (HIGH / MEDIUM / LOW — how large the exposure is as a share of revenue, not how dangerous it is) and a nature tag: Built-in(the company’s own model, geography, or products) or Outside party (an external customer, supplier, or distributor it relies on).
LOWOutside partyCustomer
Toyota Motor Company, Volkswagen Group, and General Motors
“10-K Item 1A: 'three automotive customers which each account for 10% or more of our annual consolidated net sales in 2025 ... Toyota Motor Company, Volkswagen Group, and General Motors'”
TrendMatrix Research · concentration synthesis
What these concentrations mean together
updated 2026-07-03The company's concentration profile is defined by a dominant product dependency and a low but real customer dependency at the top of its customer list. Automotive rearview mirrors and electronics accounted for 89% of consolidated net sales in 2025, making this a high-share structural concentration — one that reflects a deliberate strategic focus on automotive original equipment rather than a passive accumulation of reliance. Because the company's product footprint is intentionally narrow, this concentration is a feature of the business model rather than a risk that emerged without design. On the customer side, three automotive customers each accounted for 10% or more of annual consolidated net sales in 2025 — Toyota Motor Company, Volkswagen Group, and General Motors. These three together represent a low-share cluster by disclosed size, consistent with a dependency character: program losses, platform transitions, or production volume reductions at any of these accounts could affect results in a given year. However, the fact that no single one dominates to an extreme degree and that the exposure is spread across three distinct global OEMs provides some natural diversification within the disclosed customer tier. The principal risk in the profile is not any one customer relationship but rather the high share of revenue tied to a single product category — one where platform mix shifts, technology transitions, and OEM sourcing decisions are the key variables.
For the engine’s reasoning on GNTX’s current verdict — including which dimensions drove the score — see the per-dimension breakdown.
Industry peers · Auto Parts
Peer concentration profile
| Symbol | Name | HIGH | MEDIUM | LOW | Total |
|---|---|---|---|---|---|
| ALSN | Allison Transmission Holdings, | 3 | 0 | 1 | 4 |
| APTV | Aptiv PLC | 1 | 2 | 1 | 4 |
| ALV | Autoliv, Inc. | 1 | 2 | 0 | 3 |
| GNTX● | Gentex Corporation | 1 | 0 | 1 | 2 |
| ADNT | Adient plc | 0 | 1 | 0 | 1 |
| AAP | Advance Auto Parts Inc. | 0 | 0 | 0 | 0 |
Concentration counts reflect items disclosed in each peer’s most recent 10-K; disclosed-size classification uses TrendMatrix’s internal 10-K extraction taxonomy.