Online brokers in the United States that AI assistants recommend
We asked ChatGPT, Claude and Gemini the four questions a buyer asks when looking for online brokers in the United States, three times each (Claude once), in English, and counted who they named. These are the businesses named in two or more of the 28 answers.
Names are printed as the assistants wrote them. We have not checked that any of them is good, open, or real.
- Answers
- 28
- Businesses named
- 10
- Named only once
- 1
- Named by 2+ assistants
- 7 of 9
- Named again on a rerun
- 90%
Edition October 2026. Download the data
Asked for online brokers in the United States, ChatGPT, Claude and Gemini most often named Fidelity Investments (100% of answers), Charles Schwab (100%) and Vanguard (71%). Across 28 answers they named 10 different businesses, 1 of them only once. Each of four buyer questions was asked three times (Claude once), in English, in October 2026.
The ranking
The AI Recommendation Rate is the fraction of the 28 answers that named a business. The range under it is a 95% confidence interval: where two ranges overlap, the gap between those businesses could be chance.
| # | Business | AI Recommendation Rate | ChatGPT | Claude | Gemini | Questions | Avg. position | With search |
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity InvestmentsAlso written FidelityIs this your business? | 95%: 88 to 100% | 100% | 100% | 100% | 4 of 4 | 1.2 | 100% |
| 2 | Charles SchwabIs this your business? | 95%: 88 to 100% | 100% | 100% | 100% | 4 of 4 | 2 | 100% |
| 3 | VanguardIs this your business? | 95%: 53 to 85% | 58% | 100% | 75% | 4 of 4 | 3.3 | 50% |
| 4 | Interactive BrokersIs this your business? | 95%: 27 to 61% | 42% | 25% | 50% | 2 of 4 | 3.1 | 100% |
| 5 | RobinhoodIs this your business? | 95%: 24 to 58% | 8% | 50% | 67% | 4 of 4 | 3.6 | 0% |
| 6 | E*TRADEIs this your business? | 95%: 15 to 47% | 0% | 0% | 67% | 3 of 4 | 5 | 50% |
| 7 | BettermentIs this your business? | 95%: 6 to 32% | 0% | 25% | 25% | 1 of 4 | 4.8 | 0% |
| 8 | AcornsIs this your business? | 95%: 4 to 27% | 0% | 0% | 25% | 1 of 4 | 6 | 0% |
| 9 | WebullIs this your business? | 95%: 2 to 23% | 0% | 25% | 8% | 1 of 4 | 3.5 | 0% |
Each assistant column is the share of that assistant's own answers. Questions counts how many of the four produced the name at least once; position is where it came in the answer's list, 1 being first. 1 more name came up in a single answer and is counted above but not listed.
Is this your business?
Named on this list? Get the badge for your website and a free scan of who AI assistants recommend to your customers. Use the badge only for a business named here. It records this edition, without verifying ownership or promising future mentions.
What each assistant said
The same questions, the same number of times, and often different names. Each column is one assistant's top five from the ranking above, with the share of its own answers that named them.
| # | ChatGPT | Claude | Gemini |
|---|---|---|---|
| 1 | Fidelity Investments100% | Fidelity Investments100% | Fidelity Investments100% |
| 2 | Charles Schwab100% | Charles Schwab100% | Charles Schwab100% |
| 3 | Vanguard58% | Vanguard100% | Vanguard75% |
| 4 | Interactive Brokers42% | Robinhood50% | Robinhood67% |
| 5 | Robinhood8% | Interactive Brokers25% | E*TRADE67% |
Named here? Put it on your site
Every business in the ranking was named in two or more answers. The badge says that and nothing more: no position, because the ranges above do not support one. It links back to this page, so anyone can check.
<a href="https://aigrow.gg/index/online-brokers/united-states"><img src="https://aigrow.gg/badges/index/2026-10/online-brokers/united-states.svg" width="312" height="100" alt="Named by AI assistants: Online brokers in the United States, AIGROW AI Visibility Index, October 2026"></a>The questions
Asked word for word, three times each (Claude once), to every assistant. The prompt is the one the free scan uses. No web search, no location and no chat history, so every answer starts from the same place.
- 1What is the best online broker for investing in the US?
- 2I want to start investing in ETFs in the US. Which investing app would you recommend?
- 3Which online broker in the US has the lowest fees?
- 4Which investment platform in the US is best for beginners?
On this page the same questions were also asked with web search on, 2 answers. 100% of the businesses named with search were also named without it; the With search column above is each business's share of those answers.
How to read this page
- What it measures
- Which names these models produce when asked cold, from what they learned in training. It is not a review, a rating or our recommendation, and a business missing here may simply be one the models were never shown.
- Why the ranges matter
- 28 answers is a sample. Asked again next month, most shares will move by a few points; the ranges say how far they could move by chance alone.
- One business, several spellings
- Branches, legal suffixes and spellings of one business are merged, and the other spellings are printed under its name. Names that might be two businesses are kept apart.
- A name is wrong
- If a business here is closed, misnamed or yours and you want it removed, tell us. We correct or remove it when the page is next published.
AI Visibility Index
Elsewhere in the Index
Is your business on this list?
The free scan asks the same assistants the questions your customers ask, scores whether they name you, and lists who they name instead.
Edition October 2026 · published by Guglielmo Paesano, founder of AIGROW · data under CC BY 4.0