--- title: "Capital One vs PenFed Credit Union: Which is searched more in the United States?" description: "Is Capital One or PenFed Credit Union more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Auto loan 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/capital-one-vs-penfed" publisher: "Brandwave" --- # Capital One vs PenFed Credit Union: Which is searched more in the United States? Is Capital One or PenFed Credit Union more popular in search? Compare estimated monthly branded-search demand and Share of Search inside the Auto loan 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**: Capital One and PenFed Credit Union - **Competitive set**: Auto loan brands - **Market**: United States - **Month measured**: Sep 2026 - **Capital One Share of Search**: 64% - **PenFed Credit Union Share of Search**: 1.5% ## Is Capital One or PenFed Credit Union more popular in search? - In September 2026, Capital One had more branded searches than PenFed Credit Union among auto loan brands in the United States. Capital One had about 9.1 million branded searches, while PenFed Credit Union had 211,000. Capital One made up 64% of all auto loan brand searches we track, and PenFed Credit Union accounted for 1.5%. - Capital One was ahead of PenFed Credit Union in every measured month of the 12 months ending September 2026. - Across the 12 months ending September 2026, Capital One’s share of searches among auto loan brands in the United States moved from 65.7% to 64%, and its estimated monthly branded searches held steady at 9.1M. - Across the 12 months ending September 2026, PenFed Credit Union’s share of searches among auto loan brands in the United States moved from 1.8% to 1.5%, and its estimated monthly branded searches moved from 250K to 211K. ## Top auto loan brands in ChatGPT and Google AI Overviews In three ChatGPT questions and two Google AI Overviews, Capital One and PenFed Credit Union were each mentioned in four out of five: in all three ChatGPT answers and in one of the two Google AI Overviews. PenFed Credit Union was listed before Capital One in every answer. 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 | | --- | --- | --- | --- | --- | | PenFed Credit Union | 1st | 3 of 3 | 1 of 2 | 4 of 5 | | Capital One | 2nd | 3 of 3 | 1 of 2 | 4 of 5 | | Navy Federal Credit Union | 3rd | 3 of 3 | 1 of 2 | 4 of 5 | | Bank of America | 4th | 1 of 3 | 1 of 2 | 2 of 5 | | myAutoloan | 5th | 2 of 3 | 0 of 2 | 2 of 5 | | Carvana | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | Discover | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | | LightStream | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 | ## Every AI answer about auto loan brands - Asked ChatGPT "Which auto loan brand should I use in the US?": 1. PenFed Credit Union, 2. Capital One, 3. Navy Federal Credit Union - Asked ChatGPT "What are the best auto loan brands in the US?": 1. PenFed Credit Union, 2. Capital One, 3. Navy Federal Credit Union, 4. myAutoloan - Asked ChatGPT "What's the best auto loan brand in the US for a used car?": 1. PenFed Credit Union, 2. Capital One, 3. Navy Federal Credit Union, 4. myAutoloan, 5. Bank of America - Searched Google, AI Overview "auto loan rates": 1. PenFed Credit Union, 2. Navy Federal Credit Union, 3. Bank of America, 4. Capital One - Searched Google, AI Overview "car loan rates": named none of the brands we track Not named in any answer: Carvana, Discover and LightStream. Brands are listed in the order each answer named them. The answers were collected in United States on October 19, 2026. ## How did search popularity change for United States auto loan brands in September 2026? - In September 2026, Capital One gained share of searches among auto loan brands in the United States, from 62.9% to 64%. - Estimated monthly branded searches for PenFed Credit Union in the United States fell 15.8% over 12 measured months, from 250K to 211K in September 2026. ## Month by month | Month | Capital One estimated searches | Capital One Share of Search | Capital One rank | PenFed Credit Union estimated searches | PenFed Credit Union Share of Search | PenFed Credit Union rank | | --- | --- | --- | --- | --- | --- | --- | | Oct 2025 | 9.1M | 65.7% | 1 | 250K | 1.8% | 4 | | Nov 2025 | 9.1M | 68.9% | 1 | 206K | 1.6% | 4 | | Dec 2025 | 9.1M | 65.8% | 1 | 211K | 1.5% | 4 | | Jan 2026 | 9.1M | 65.4% | 1 | 261K | 1.9% | 4 | | Feb 2026 | 9.1M | 65.7% | 1 | 216K | 1.6% | 4 | | Mar 2026 | 9.1M | 61.6% | 1 | 261K | 1.8% | 4 | | Apr 2026 | 9.1M | 61.7% | 1 | 261K | 1.8% | 4 | | May 2026 | 9.1M | 61.8% | 1 | 213K | 1.4% | 4 | | Jun 2026 | 9.1M | 65.6% | 1 | 211K | 1.5% | 4 | | Jul 2026 | 9.1M | 62.1% | 1 | 254K | 1.7% | 4 | | Aug 2026 | 9.1M | 62.9% | 1 | 256K | 1.8% | 4 | | Sep 2026 | 9.1M | 64% | 1 | 211K | 1.5% | 4 | ## How each brand is measured Brandwave collects information about searches that people make online using Capital One’s and PenFed Credit Union’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. - **Capital One**: Measured on the search term “capital one”. - **PenFed Credit Union**: Measured on the search terms “penfed” and “penfed auto loan”, summed into one figure. - [Capital One profile](/demand/us/brands/capital-one) - [PenFed Credit Union profile](/demand/us/brands/penfed) - [All auto loan brands in the United States](/demand/us/categories/us-auto-loan-brands): The set both shares are measured inside, 8 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 Capital One or PenFed Credit Union more popular in search? In September 2026, Capital One had more branded searches than PenFed Credit Union among auto loan brands in the United States. Capital One had about 9.1 million branded searches, while PenFed Credit Union had 211,000. Capital One made up 64% of all auto loan brand searches we track, and PenFed Credit Union accounted for 1.5%. ## Cite this page Brandwave. "Capital One vs PenFed Credit Union: Which is searched more in the United States?". https://gobrandwave.com/demand/us/compare/capital-one-vs-penfed This page is also available as HTML at https://gobrandwave.com/demand/us/compare/capital-one-vs-penfed. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.