--- title: "Costa vs Persol: Which is searched more in the United States?" description: "Is Costa or Persol more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Sunglasses brands set in the United States. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time." canonical: "https://gobrandwave.com/demand/us/compare/costa-del-mar-vs-persol" publisher: "Brandwave" --- # Costa vs Persol: Which is searched more in the United States? Is Costa or Persol more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Sunglasses brands set in the United States. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time. ## Key facts - **Compared**: Costa and Persol - **Competitive set**: Sunglasses brands - **Market**: United States - **Month measured**: Sep 2026 - **Costa Share of Search**: 5.4% - **Persol Share of Search**: 1.3% ## Is Costa or Persol more popular in search? - In September 2026, Costa had more branded searches than Persol among sunglasses brands in the United States. Costa had about 74,000 branded searches, while Persol had 18,100. Costa made up 5.4% of all sunglasses brand searches we track, and Persol accounted for 1.3%. - Costa was ahead of Persol in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Costa’s share of searches among sunglasses brands in the United States moved from 4.6% to 5.4%, and its estimated monthly branded searches moved from 60.5K to 74K. - Across the 12 months ending September 2026, Persol’s share of searches among sunglasses brands in the United States moved from 1.4% to 1.3%, and its estimated monthly branded searches held steady at 18.1K. ## Top sunglasses brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Costa was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Persol was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Costa was listed before Persol in two out of three answers that named either. Brands get a higher AI rank if they are mentioned earlier in the answers that list options. | Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it | | --- | --- | --- | --- | --- | | Oakley | 1st | 3 of 3 | 1 of 2 | 4 of 5 | | Costa | 2nd | 2 of 3 | 1 of 2 | 3 of 5 | | Ray-Ban | 3rd | 2 of 3 | 2 of 2 | 4 of 5 | | Maui Jim | 4th | 2 of 3 | 0 of 2 | 2 of 5 | | Persol | 5th | 1 of 3 | 0 of 2 | 1 of 5 | | Oliver Peoples | 6th | 1 of 3 | 0 of 2 | 1 of 5 | | Goodr | 7th | 2 of 3 | 0 of 2 | 2 of 5 | | Warby Parker | 8th | 1 of 3 | 0 of 2 | 1 of 5 | | Smith | 9th | 1 of 3 | 0 of 2 | 1 of 5 | | Prada | 10th | 1 of 3 | 0 of 2 | 1 of 5 | | Quay | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Gucci | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Pit Viper | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Knockaround | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Le Specs | Not ranked | 1 of 3 | 0 of 2 | 1 of 5 | ## Every AI answer about sunglasses brands - Asked ChatGPT "Which sunglasses should I buy?": 1. Ray-Ban, 2. Oakley, 3. Le Specs - Asked ChatGPT "What are the best sunglasses brands?": 1. Ray-Ban, 2. Persol, 3. Maui Jim, 4. Oliver Peoples, 5. Oakley, 6. Costa, 7. Warby Parker, 8. Goodr, 9. Prada - Asked ChatGPT "What are the best polarized sunglasses?": 1. Maui Jim, 2. Oakley, 3. Costa, 4. Goodr, 5. Smith - Searched Google, AI Overview "sunglasses": 1. Oakley, 2. Ray-Ban - Searched Google, AI Overview "polarized sunglasses": 1. Costa, 2. Ray-Ban Not named in any answer: Quay, Gucci, Pit Viper and Knockaround. Brands are listed in the order each answer named them. The answers were collected in United States on October 26, 2026. ## How did search popularity change for United States sunglasses brands in September 2026? - Costa’s share of searches among sunglasses brands in the United States has lost ground for 3 months in a row, from 6% to 5.4% in September 2026. ## Month by month | Month | Costa estimated searches | Costa Share of Search | Costa rank | Persol estimated searches | Persol Share of Search | Persol rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 60.5K | 4.6% | 7 | 18.1K | 1.4% | 11 | | Nov 2025 | 74K | 4.4% | 6 | 18.1K | 1.1% | 11 | | Dec 2025 | 74K | 4.4% | 6 | 22.2K | 1.3% | 11 | | Jan 2026 | 49.5K | 4.1% | 7 | 18.1K | 1.5% | 11 | | Feb 2026 | 60.5K | 4.7% | 7 | 18.1K | 1.4% | 11 | | Mar 2026 | 90.5K | 5.3% | 7 | 18.1K | 1.1% | 13 | | Apr 2026 | 90.5K | 5.1% | 7 | 18.1K | 1% | 13 | | May 2026 | 110K | 5.2% | 7 | 27.1K | 1.3% | 12 | | Jun 2026 | 135K | 6% | 6 | 27.1K | 1.2% | 12 | | Jul 2026 | 110K | 5.7% | 7 | 22.2K | 1.1% | 13 | | Aug 2026 | 90.5K | 5.4% | 6 | 22.2K | 1.3% | 12 | | Sep 2026 | 74K | 5.4% | 6 | 18.1K | 1.3% | 12 | ## How each brand is measured Brandwave collects information about searches that people make online using Costa’s and Persol’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading. - **Costa**: Measured on the search term “costa sunglasses”. - **Persol**: Measured on the search term “persol”. - [Costa profile](/demand/us/brands/costa-del-mar) - [Persol profile](/demand/us/brands/persol) - [All sunglasses brands in the United States](/demand/us/categories/us-sunglasses-brands): The set both shares are measured inside, 15 brands. ## Methodology - [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused. ## Frequently asked questions ### Is Costa or Persol more popular in search? In September 2026, Costa had more branded searches than Persol among sunglasses brands in the United States. Costa had about 74,000 branded searches, while Persol had 18,100. Costa made up 5.4% of all sunglasses brand searches we track, and Persol accounted for 1.3%. ## Cite this page Brandwave. "Costa vs Persol: Which is searched more in the United States?". https://gobrandwave.com/demand/us/compare/costa-del-mar-vs-persol This page is also available as HTML at https://gobrandwave.com/demand/us/compare/costa-del-mar-vs-persol. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.