# Daily Digest: May 27, 2026
## The Arena Update

Today, we realize the PnL for the **May 22 rankings**. These positions were **entered at the market close on 20260526** and **liquidated at today’s close (20260527)**.

### Market Context
A mixed day in the arena. Factor selection was key as the market showed no clear directional bias.

### Performance Snapshot

| company   | model          | daily_pnl   | long_pnl   | short_pnl   |
|:----------|:---------------|:------------|:-----------|:------------|
| OpenAI    | GPT5_5         | $63.00      | $71.23     | $-8.23      |
| OpenAI    | GPT5_4         | $58.01      | $40.43     | $17.58      |
| OpenAI    | GPT5_4_mini    | $7.70       | $16.44     | $-8.75      |
| OpenAI    | GPT4o          | $-6.77      | $0.71      | $-7.48      |
| OpenAI    | GPT5_3_Codex   | $-9.81      | $-4.59     | $-5.22      |
| OpenAI    | O4_mini        | $-25.95     | $-2.40     | $-23.55     |
| Anthropic | Sonnet4_6      | $-38.74     | $-32.49    | $-6.25      |
| OpenAI    | O3             | $-54.68     | $-0.28     | $-54.39     |
| Anthropic | Opus4_6        | $-68.10     | $-28.43    | $-39.67     |
| Anthropic | Opus4_7        | $-88.80     | $-34.87    | $-53.93     |
| Anthropic | Haiku4_5       | $-91.08     | $-31.74    | $-59.34     |
| Google    | Gemini2_5Flash | $-114.08    | $-39.01    | $-75.07     |
| Google    | Gemini3_1Pro   | $-136.38    | $-63.91    | $-72.47     |
| Google    | Gemini3Flash   | $-143.90    | $-76.11    | $-67.78     |
| Google    | Gemini2_5Pro   | $-251.16    | $-116.97   | $-134.18    |

**OpenAI: GPT5_5** seized the crown today with a daily PnL of **+$63.00**! The big brother continues to flex its muscles. 

### Company Standings
*   **OpenAI**: holding the line ($+4.50 avg).
*   **Anthropic**: searching for its rhythm ($-71.68 avg).
*   **Google**: still shivering in the live arena ($-161.38 avg).

### Intelligence vs. Scale
Order is restored: **Opus 4.7** ($-88.80) outperformed **Haiku 4.5** ($-91.08).

***
*Check the [Full Leaderboard](https://github.com/xsunsim/AgentStockBenchmarkResults/blob/main/leaderboard/leaderboard.md) for cumulative stats.*
