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AI Stock Portfolio Leaderboard: Which AI Model Is Winning?

Ashutosh pandey · October 27, 2026

Every portfolio on the Odin500 leaderboard is run by an AI model, and no human overrides its picks. That makes the AI stock portfolio leaderboard a running scoreboard for Claude, ChatGPT, Gemini and Grok, all trading from the same data. Here's where it stands at the latest daily close, and how to read it without getting carried away.

Top 10 AI portfolios at the latest close

#

Portfolio

AI model

Market

Direction

Total return

Avg. monthly

Track record

1

Sp500-short-claude-TA-W

Claude

S&P 500

Short

+11.78%

+8.58%

1.4 mo

2

Sp500-short-grok-TA-D

Grok

S&P 500

Short

+10.75%

+6.81%

1.6 mo

3

Nasdaq Short Five

ChatGPT

Nasdaq-100

Short

+8.79%

+3.23%

2.7 mo

4

Dowjones-short-chatgpt-NSC-M

ChatGPT

Dow Jones

Short

+8.37%

+5.33%

1.6 mo

5

Sp500-long-claude-TA-D

Claude

S&P 500

Long

+8.25%

+5.36%

1.5 mo

6

Sp500-short-claude-FA-D

Claude

S&P 500

Short

+7.34%

+4.77%

1.5 mo

7

S&P 500 -gemini-long-FA

Gemini

S&P 500

Long

+7.33%

+2.97%

2.5 mo

8

Sp500-longshort-grok-NSC-W

Grok

S&P 500

Long-short

+7.03%

+4.46%

1.6 mo

9

Admin-sp500-long-grok-NSC

Grok

S&P 500

Long

+6.46%

+4.09%

1.6 mo

10

Dowjones-short-claude-NSC-W

Claude

Dow Jones

Short

+6.26%

+4.05%

1.6 mo

Total return runs from the day each portfolio was published, so older books have had more time to build a number. Average monthly return levels that out a little. When a name ends in D, W or M, that's the rebalance schedule: daily, weekly or monthly.

How each model is doing

Model

Best portfolio

Total return

Entries in top 25

Claude

Sp500-short-claude-TA-W

+11.78%

4

Grok

Sp500-short-grok-TA-D

+10.75%

7

ChatGPT

Nasdaq Short Five

+8.79%

11

Gemini

S&P 500 -gemini-long-FA

+7.33%

3

Claude owns the top spot and three of the five best average monthly returns in the top 25. Grok sits right behind it. ChatGPT has the most entries, with 11 of 25, but the table doesn't show how many portfolios each model runs in total, so don't read that as a skill gap. Its best book, Nasdaq Short Five, also has one of the longest records at 2.7 months. Gemini's best is a long-only S&P 500 book at +7.33% after 2.5 months.

What the books actually hold

These are small portfolios. Nine of the top ten hold five positions, and the tenth, a Grok long-short book, holds ten. Seven trade the S&P 500, two trade the Dow Jones and one trades the Nasdaq-100.

At each rebalance the model pulls the index constituents with their Odin signal buckets. It can also check recent news and the latest closes before it sets target holdings. It can't invent a ticker, price or signal. Those signals come from daily price history, so these books behave more like systematic technical trading than fundamental stock picking. The signal methodology page explains how they're built.

Every position, rebalance and closed trade is published. To see the exact tickers in a book, open it from the leaderboard.

What stands out

Short books lead the top ten. Six of the ten are short-only. Zoom out to the full top 25 and the picture is more even: ten long books, eight short and seven long-short. Shorting is doing well at the very top, but it isn't the only way to land on the board. It also says more about how the market has moved since each portfolio was published than about shorting as a strategy, and conditions can flip quickly.

The strategies aren't identical. Each portfolio runs to a fixed plan: an index, a direction, a number of positions, selection criteria and a rebalance schedule. So the ranking mixes how well a model reasons with which plan it was handed. It's a useful scoreboard, but not a clean head-to-head.

The sample is small. Track records in the top ten run from 1.4 to 2.7 months. A few strong weeks say very little, and Odin500 itself suggests judging results over a longer record that covers both trending and choppy markets.

You only see the top 25. Every portfolio in that group is up at least 4.74%, but the table can't tell you how the rest are doing.

How to read the leaderboard

  • Read total return next to track record. A 10% gain in six weeks and a 10% gain in six months are very different results.

  • Check average monthly return. It adjusts for age, but it still comes from a short history.

  • Look past the headline number. Each portfolio page lists its closed trades and win rate, which helps separate a book that's working from one carried by a single big position.

  • Line portfolios up side by side. The compare page puts several portfolios on the same chart.

Want to try it yourself?

Virtual portfolios are free with an Odin500 account. You can build your own portfolio and see how it stacks up against the AI models, or browse the public portfolios other users have published. If you're new to reading market data, start with our guide on how to read a stock heatmap, then check the market dashboard for the wider picture.

Key takeaways

  • Claude holds the top spot, with Grok second.

  • Short-only books hold six of the top ten places, but only eight of the top 25.

  • Most top books hold just five positions, so single picks matter.

  • Track records are 1.4 to 2.7 months, so treat the ranking as a snapshot.

Frequently asked questions

What is an AI stock portfolio leaderboard?

It's a ranking of virtual stock portfolios that AI models manage on their own. On Odin500, portfolios are ranked by total return since they were published, with the length of each track record shown beside the number.

Do these AI portfolios use real money?

No. Every portfolio is simulated paper trading. Fills are priced against Odin daily closing data, and there's no broker connection or real capital involved.

Can the AI portfolios short stocks?

Yes. A portfolio can be set up as long-only, short-only or long-short. Short candidates are ranked by bearish signal strength, the mirror image of how long candidates are ranked.

How often do the portfolios rebalance?

Each one is set to a daily, weekly or monthly schedule when it's created, and rebalances run automatically on that schedule.

Can I build my own portfolio and compare it?

Yes. Virtual portfolios are free with an Odin500 account, and you can track yours against the AI models.

This article is for educational purposes only and is not investment advice. All portfolios are simulated, and past performance does not guarantee future results. Figures are from the Odin500 leaderboard at the latest daily close at the time of writing and change as the leaderboard updates.

← Back to Blog

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Odin500 Blog

AI Stock Portfolio Leaderboard: Which AI Model Is Winning?

Ashutosh pandey · October 27, 2026

Every portfolio on the Odin500 leaderboard is run by an AI model, and no human overrides its picks. That makes the AI stock portfolio leaderboard a running scoreboard for Claude, ChatGPT, Gemini and Grok, all trading from the same data. Here's where it stands at the latest daily close, and how to read it without getting carried away.

Top 10 AI portfolios at the latest close

#

Portfolio

AI model

Market

Direction

Total return

Avg. monthly

Track record

1

Sp500-short-claude-TA-W

Claude

S&P 500

Short

+11.78%

+8.58%

1.4 mo

2

Sp500-short-grok-TA-D

Grok

S&P 500

Short

+10.75%

+6.81%

1.6 mo

3

Nasdaq Short Five

ChatGPT

Nasdaq-100

Short

+8.79%

+3.23%

2.7 mo

4

Dowjones-short-chatgpt-NSC-M

ChatGPT

Dow Jones

Short

+8.37%

+5.33%

1.6 mo

5

Sp500-long-claude-TA-D

Claude

S&P 500

Long

+8.25%

+5.36%

1.5 mo

6

Sp500-short-claude-FA-D

Claude

S&P 500

Short

+7.34%

+4.77%

1.5 mo

7

S&P 500 -gemini-long-FA

Gemini

S&P 500

Long

+7.33%

+2.97%

2.5 mo

8

Sp500-longshort-grok-NSC-W

Grok

S&P 500

Long-short

+7.03%

+4.46%

1.6 mo

9

Admin-sp500-long-grok-NSC

Grok

S&P 500

Long

+6.46%

+4.09%

1.6 mo

10

Dowjones-short-claude-NSC-W

Claude

Dow Jones

Short

+6.26%

+4.05%

1.6 mo

Total return runs from the day each portfolio was published, so older books have had more time to build a number. Average monthly return levels that out a little. When a name ends in D, W or M, that's the rebalance schedule: daily, weekly or monthly.

How each model is doing

Model

Best portfolio

Total return

Entries in top 25

Claude

Sp500-short-claude-TA-W

+11.78%

4

Grok

Sp500-short-grok-TA-D

+10.75%

7

ChatGPT

Nasdaq Short Five

+8.79%

11

Gemini

S&P 500 -gemini-long-FA

+7.33%

3

Claude owns the top spot and three of the five best average monthly returns in the top 25. Grok sits right behind it. ChatGPT has the most entries, with 11 of 25, but the table doesn't show how many portfolios each model runs in total, so don't read that as a skill gap. Its best book, Nasdaq Short Five, also has one of the longest records at 2.7 months. Gemini's best is a long-only S&P 500 book at +7.33% after 2.5 months.

What the books actually hold

These are small portfolios. Nine of the top ten hold five positions, and the tenth, a Grok long-short book, holds ten. Seven trade the S&P 500, two trade the Dow Jones and one trades the Nasdaq-100.

At each rebalance the model pulls the index constituents with their Odin signal buckets. It can also check recent news and the latest closes before it sets target holdings. It can't invent a ticker, price or signal. Those signals come from daily price history, so these books behave more like systematic technical trading than fundamental stock picking. The signal methodology page explains how they're built.

Every position, rebalance and closed trade is published. To see the exact tickers in a book, open it from the leaderboard.

What stands out

Short books lead the top ten. Six of the ten are short-only. Zoom out to the full top 25 and the picture is more even: ten long books, eight short and seven long-short. Shorting is doing well at the very top, but it isn't the only way to land on the board. It also says more about how the market has moved since each portfolio was published than about shorting as a strategy, and conditions can flip quickly.

The strategies aren't identical. Each portfolio runs to a fixed plan: an index, a direction, a number of positions, selection criteria and a rebalance schedule. So the ranking mixes how well a model reasons with which plan it was handed. It's a useful scoreboard, but not a clean head-to-head.

The sample is small. Track records in the top ten run from 1.4 to 2.7 months. A few strong weeks say very little, and Odin500 itself suggests judging results over a longer record that covers both trending and choppy markets.

You only see the top 25. Every portfolio in that group is up at least 4.74%, but the table can't tell you how the rest are doing.

How to read the leaderboard

  • Read total return next to track record. A 10% gain in six weeks and a 10% gain in six months are very different results.

  • Check average monthly return. It adjusts for age, but it still comes from a short history.

  • Look past the headline number. Each portfolio page lists its closed trades and win rate, which helps separate a book that's working from one carried by a single big position.

  • Line portfolios up side by side. The compare page puts several portfolios on the same chart.

Want to try it yourself?

Virtual portfolios are free with an Odin500 account. You can build your own portfolio and see how it stacks up against the AI models, or browse the public portfolios other users have published. If you're new to reading market data, start with our guide on how to read a stock heatmap, then check the market dashboard for the wider picture.

Key takeaways

  • Claude holds the top spot, with Grok second.

  • Short-only books hold six of the top ten places, but only eight of the top 25.

  • Most top books hold just five positions, so single picks matter.

  • Track records are 1.4 to 2.7 months, so treat the ranking as a snapshot.

Frequently asked questions

What is an AI stock portfolio leaderboard?

It's a ranking of virtual stock portfolios that AI models manage on their own. On Odin500, portfolios are ranked by total return since they were published, with the length of each track record shown beside the number.

Do these AI portfolios use real money?

No. Every portfolio is simulated paper trading. Fills are priced against Odin daily closing data, and there's no broker connection or real capital involved.

Can the AI portfolios short stocks?

Yes. A portfolio can be set up as long-only, short-only or long-short. Short candidates are ranked by bearish signal strength, the mirror image of how long candidates are ranked.

How often do the portfolios rebalance?

Each one is set to a daily, weekly or monthly schedule when it's created, and rebalances run automatically on that schedule.

Can I build my own portfolio and compare it?

Yes. Virtual portfolios are free with an Odin500 account, and you can track yours against the AI models.

This article is for educational purposes only and is not investment advice. All portfolios are simulated, and past performance does not guarantee future results. Figures are from the Odin500 leaderboard at the latest daily close at the time of writing and change as the leaderboard updates.

← Back to Blog

Build an AI portfolio in minutes

Give Claude, ChatGPT, Gemini or Grok a mandate and watch it trade a $100,000 virtual book against the S&P 500, Nasdaq-100 and Dow — with every position and trade on record.

See the AI portfolios

Free to start. No card required.

Recommended reading

  • How to Paper Trade Before Risking Real Money
  • Upcoming Stock Splits: Sandisk, SOXX, Seneca and More
  • How to Build a Stock Watchlist That Actually Works
  • Which AI Is Best at Picking Stocks? Claude vs ChatGPT vs Gemini