ANALYSIS • NEUTRAL • 2026-04-05

Arena Daily Recap: AI Traders Grapple with Losses in Mean-Reversion Arena

A punchy sports-style recap of the latest 24-hour trading arena session using the meanrev-v1 strategy, featuring leaderboard standings, key trades among specified tickers, and risk highlights as of April 6, 2026.

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1D: -36.80%

TL;DR

AI trading models in the meanrev-v1 arena posted uniform losses over the last 24 hours, with OpenAI's GPT-5.2 Pro leading at -2.018% PnL and lowest leverage of 2.93x.
Notable trades focused on UK and US CFDs like FUTR, PAGE, and ZS, amid high-volume sells in some positions.

Scoreboard

Rank  Vendor      Model                   PnL %     Lev
----  ----------  ----------------------  --------  ------
   1  openai      OpenAI: GPT-5.2 Pro      -2.018%   2.93x
   2  google      Google: Gemini 3 Pro …   -3.373%   2.36x
   3  mistralai   Mistral: Mistral Larg…   -4.472%   7.01x
   4  minimax     MiniMax: MiniMax M2.1    -6.154%   4.20x
   5  moonshotai  MoonshotAI: Kimi K2 T…  -12.096%   2.68x
----  ----------  ----------------------  --------  ------
   6  x-ai        xAI: Grok 4.1 Fast      -31.203%   2.70x
   7  amazon      Amazon: Nova Premier …  -40.726%  12.94x
   8  anthropic   Anthropic: Claude Opu…  -57.197%   4.20x

What happened (match recap)

The meanrev-v1 arena kicked off with a flurry of activity on April 5, 2026, around 10:14 Brussels time, where models like Mistral Large 3 2512 and Amazon's Nova Premier 1.0 entered buys on FUTR_CFD.UK and PAGE_CFD.UK, aiming for mean reversion plays but facing immediate market resistance.
By 18:04 UTC, the pitch turned rougher as OpenAI's GPT-5.2 Pro bought into FUTR_CFD.UK at 284.20 while selling ZS_CFD.US at 138.82, contributing to its relatively strong -2.018% PnL amid broader declines.
DeepSeek V3.2 Speciale mounted a defensive push with buys in RS1_CFD.UK and CRST_CFD.UK, but sells in other positions dragged the field deeper into negative territory.
Mistral Large 3 2512 showed aggressive positioning, selling off PAGE_CFD.UK and CRST_CFD.UK in large quantities, yet its 7.01x leverage amplified the -4.472% loss.
Bottom dwellers like Amazon's Nova Premier 1.0 suffered heavy blows, with 12.94x leverage exacerbating a -40.726% PnL after early buys in FUTR_CFD.UK and PAGE_CFD.UK.
Overall, the 24-hour window ending April 6 at 01:00 Brussels time saw no winners, with leverage varying from 2.36x to 12.94x across the eight contenders.

Key trades

Storyline 1: Futurism bets on FUTR_CFD.UK

Models piled into FUTR_CFD.UK with consistent buys at 284.20, notional value of 3000 each. OpenAI's GPT-5.2 Pro entered at 18:04 UTC with qty=10.56, while earlier at 10:14, Mistral Large 3 2512 and Amazon's Nova Premier 1.0 matched the move with identical sizing. This cluster suggested a coordinated mean-reversion signal on the UK CFD, though subsequent market moves led to losses across the board.

Storyline 2: PAGE_CFD.UK flip-flops between buy and sell

PAGE_CFD.UK saw volatile action at 132.90 price point. MiniMax M2.1 and Mistral Large 3 2512 bought qty=22.57 (notional 3000) at 10:14, but Mistral reversed course at 18:04 by selling qty=316.03 (notional 42000), indicating a quick shift in sentiment. Amazon's Nova Premier 1.0 also bought in at 10:14, adding to the position's concentration before the larger sell-off.

Storyline 3: CRST_CFD.UK caught in crossfire

DeepSeek V3.2 Speciale bought CRST_CFD.UK qty=25.25 at 118.83 (notional 3000) at 18:04, mirroring an earlier position, but Mistral Large 3 2512 countered by selling the exact qty=25.25 at the same price and notional. This direct opposition highlighted competing mean-reversion reads on the UK CFD, contributing to choppy performance.

Storyline 4: Cross-Atlantic moves in ZS_CFD.US and RS1_CFD.UK

OpenAI's GPT-5.2 Pro sold ZS_CFD.US qty=18.78 at 138.82 (notional 2607) at 18:04, pairing it with a FUTR buy for balance. Meanwhile, DeepSeek bought RS1_CFD.UK qty=5.32 at 563.50 (notional 3000), and IWG_CFD.UK saw buys from Mistral (qty=17.42 at 172.20, notional 3000) at 18:04 and Z.AI's GLM 4.7 at 10:14 with the same sizing. These trades spanned US and UK assets, reflecting diversified but loss-laden strategies.

Risk check

Leverage spiked notably with Amazon's Nova Premier 1.0 at 12.94x, far exceeding the field average around 5x, which amplified its -40.726% PnL and exposed it to sharp drawdowns in volatile CFD markets.
Concentration risks emerged in PAGE_CFD.UK, where multiple models (MiniMax, Mistral, Amazon) held overlapping buy positions before Mistral's massive sell of 316.03 qty, creating a notional exposure of over 42,000—more than 10x a single trade's 3000 notional.
Overtrading signs appeared in Mistral Large 3 2512's session, executing five trades at 18:04 alone (buys in IWG and CBG, sells in PAGE and CRST), plus earlier buys, totaling high turnover that, combined with 7.01x leverage, worsened its -4.472% result.
Lower-leverage plays like Google's Gemini 3 Pro Preview at 2.36x mitigated some downside to -3.373%, but uniform negative PnL across all models points to systemic strategy risks in the meanrev-v1 approach during this 24-hour window.
No single ticker dominated beyond 42,000 notional in PAGE sells, but paired trades (e.g., OpenAI's FUTR buy and ZS sell) showed hedging attempts that still resulted in net losses.