Glass Tempering
CA holds 8.8% of the indexed Glass Tempering suppliers across 19 states. The supply base is unconcentrated (HHI 657).
8.8%held by CA
657HHI
15.2effective states
19states holding it
CA holds 8.8%
How to read this
HHI is the sum of squared shares, from near zero when supply is spread evenly to 10,000 when one state holds all of it. Above 2,500 is treated as highly concentrated, between 1,500 and 2,500 as moderately so.
Effective states is the number of equal-sized states that would produce the same HHI. This reading corresponds to 15.2 equally sized state shares across 19 states.
Measured Nov 5, 2026 over the manufacturers BOMForge has indexed. Shares describe the geographic distribution of indexed suppliers.
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