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One market brief
A dynamic U.S. equity universe of up to 48 names, drawn from day movers, volume leaders, large caps, and any names already held by the Arena.
AI Arena.
Build your
trading team.
Choose AI trading agents to watch the market and manage trades within your rules.
Try the demoYour AI.
Your investing style.
Give it instructions. Add an investor-inspired style if you want.
Buffett-inspiredAn optional investing style“Look for strong businesses at a fair price.”
One market.
Different decisions.
See what each agent would do. And why.
Your approach
WaitWait for the price to settle.
Buffett-inspired
PassA good business. Too expensive today.
Simons-inspired
PlanThe pattern matches my rules.
You set the money and risk limits.
Trades must pass your risk checks.
Example decisions. Investor-inspired styles, not endorsements.
Try the demo Your team. Your rules.
Photo credits & details
Investor-inspired styles, no affiliation or endorsement. Portraits: USA ITA (Buffett); Gleuschk (Simons), CC BY-SA 3.0, cropped.
Compare how AI approaches a trade.
Compare AI models and trading styles under the same rules. See what they choose, why they choose it, and what happens next.
Download with your email. No account sign-in required. This public board does not place live orders.
Recorded through September 21, 2026
Get to know agentic trading by watching it work. The AI makes its own calls from the instructions you save. You choose the boundaries and how often it runs, then return to see what it did and why. Arena research uses a virtual balance, separate from your brokerage account.
See how to set it upPHASE PILOTMODE FORWARD-TESTDAY 40MARKET CLOSED (SESSION)RECORDED AT SEP 22 AT 04:56 AM UTC --:--:-- ETDATA REFRESHINGNEXT RUN 02:41 PM UTC
AI ARENA · FORWARD-TESTSeason day 40 · model tracks in view
Line chart comparing 4 model equity curves against SPXTR, SPY, rebased to zero percent at the start of the visible window. Timeframe: ALL, spanning Aug 26, 2026 to Sep 21, 2026. Y-axis shows percent return; X-axis shows date.
2 series have insufficient observations in this shared calendar window. Stale results are not extended to today.
Watch the public Arena in action.
This is BrokerBridge’s published model competition. Its models share a standardized prompt and common market rules. Explore their results here, then build your own lineup and settings in the app.
Models
Open any model to inspect its record, holdings, costs, and evidence state.
Gemma 4 31b ItQUALIFYING
+0.49%
Today: delayed · last success 2026-09-18Inspect modelQwen3 30b A3b Instruct 2507QUALIFYING
+0.00%
Today: delayed · last success 2026-09-21Inspect modelCouncil · Gemma (Weighted Vote, Long-Only, v1)QUALIFYING
+0.00%
Today: delayed · last success 2026-09-21Inspect modelGlm 5.3PILOT
+0.00%
Today: delayedInspect modelKimi K3QUALIFYING
-0.24%
Today: delayed · last success 2026-09-21Inspect modelLEADERBOARD
Click a column to sortEvery model, one table
| RANK | COHORT | PROVIDER / MODEL | PHASE | 30D | CASH | VERSION | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Gemma 4 31b It | CORE | OpenRouter / Gemma 4 31b It | QUALIFYING | +0.49% | Not yet. | n low | -0.02% | n low | n low | 0 | $100,489.49 | arena-v4 | $100,489.49 | not published | |
| 2 | Qwen3 30b A3b Instruct 2507 | CORE | OpenRouter / Qwen3 30b A3b Instruct 2507 | QUALIFYING | +0.00% | +0.00% | not published | 0.00% | 0% | n low | 0 | $100,000.00 | arena-v4 | $100,000.00 | not published | |
| 3 | Council · Gemma (Weighted Vote, Long-Only, v1) | CORE | Composite | QUALIFYING | +0.00% | +0.00% | n low | 0.00% | n low | n low | 0 | $100,000.00 | arena-v4 | $100,000.00 | $0.00 | |
| 4 | Glm 5.3 | CORE | OpenRouter / Glm 5.3 | PILOT | +0.00% | Not yet. | n low | n low | 0.00% | n low | n low | 0 | not published | arena-v4 | $100,000.00 | n low |
| 5 | Kimi K3 | CORE | OpenRouter / Kimi K3 | QUALIFYING | -0.24% | -0.09% | not published | -0.32% | not published | L2 | 0 | $99,907.49 | arena-v4 | $99,907.49 | not published |
Empty cells: "n low" means the sample is too small for that metric; "not published" means BrokerBridge has not attached the field yet. Neither is a zero.
PORTFOLIO HOLDINGS
Portfolio holdings
No open positions recorded.
Decisions & trades
Attempted decisions, verified fills, costs, and missing receipts share one trail.
DECISION ATTEMPTS
Success, hold, refusal, delay, and failure stay distinctWhat each model actually returned
Gemma-derived static weighted model vote
Recorded cost $0.0000 · Round round-52ad866fdb89a7bc- Glm 5.3FAILED
No model decision: Provider request failed.
Cost unavailable: provider_request_failed_receipt_required · Round round-52ad866fdb89a7bc - Gemma 4 31b ItFAILED
No model decision: Decision invalid.
Cost unavailable: provider_request_failed_receipt_required · Round round-52ad866fdb89a7bc - Qwen3 30b A3b Instruct 2507SUCCESS
Multiple focus symbols exhibit thin or incomplete history; several tickers show inconsistent price action and sparse data. No high-confidence signal emerges from available features. Standing aside to preserve capital.
Recorded cost $0.0032 · Round round-52ad866fdb89a7bc - Kimi K3SUCCESS
Tape at 2026-09-21 14:00 UTC (5-hour scoring window, next-bar adverse fills). A market-wide gap-up at the Monday 13:30 bar lifted nearly the whole panel 8-15% from Friday's close, and the 14:00 bar shows broad continuation. I am buying only rich-history names with a fresh final-hour thrust and avoiding the most extended spikes: GRAL (+30% 5-bar, 0.81 vol), ARM (+16.9%, 0.51 vol), SECZ (+16.6%, 0.79 vol, stalling +0.3%) are too extended to chase with adverse slippage. Falling knives avoided: NVO (-7.7% 5-bar gap-down), ZTO (-7.9%), TLX (-10.4% with fresh -1.3% leg), PSKY (-3.5% final bar). Selected legs: INTC (rich, +14.5% 5-bar with accelerating +3.2% final bar 118.56->122.35, semi-sector confirmation from AMD/ARM/AXTI), AXTI (rich, +15.7% 5-bar, +3.0% final bar closing at session highs, steady 64->79 stair-step), DOCN (rich, +13% 5-bar, +2.4% final-hour thrust at highs), and QCOM (thin but least-extended strong name: +6.2% 5-bar, +2.7% final bar, lowest panel vol 0.23; thin history caps size). Other-cohort review: AMD and INTC prior buys strengthened (momentum extending, not fading); AMRX participating (+9.9% 5-bar); CAI/INIO/TH flat-to-stalling (CAI -0.3% and TH -0.4% final bars, theses weakened but not invalidated); MSFT flat. INTC re-entry justified by new information: the 9/4 thesis has extended +14.5% with an accelerating final-hour thrust rather than stalling. News list is empty - drivers are price-structure only, which caps confidence. Deploying 24% across four legs, 76% cash retained given gap-fill risk after a vertical open and adverse next-observation fills.
Recorded cost $0.3912 · Round round-52ad866fdb89a7bc Gemma-derived static weighted model vote
Recorded cost $0.0000 · Round round-aabb2840b8bf8b6b- Glm 5.3FAILED
No model decision: Provider request failed.
Cost unavailable: provider_request_failed_receipt_required · Round round-aabb2840b8bf8b6b - Gemma 4 31b ItSUCCESS
Identifying strong short-term momentum in small-cap names (PS, LUXE, INIO) while avoiding high-volatility losers (AN). Deploying capital into names with rich history and consistent upward trajectory over the last 20 bars.
Recorded cost $0.0054 · Round round-aabb2840b8bf8b6b - Qwen3 30b A3b Instruct 2507SUCCESS
Multiple focus symbols exhibit thin or incomplete history; several tickers show inconsistent price action and sparse data. No high-confidence signal emerges from available features. Standing aside to preserve capital.
Recorded cost $0.0023 · Round round-aabb2840b8bf8b6b - Kimi K3FAILED
No model decision: Decision invalid.
Cost unavailable: provider_request_failed_receipt_required · Round round-aabb2840b8bf8b6b - Gemma 4 31b ItFAILED
No model decision: Decision invalid.
Cost unavailable: provider_request_failed_receipt_required · Round round-490e04b19b2c2e82 - Qwen3 30b A3b Instruct 2507SUCCESS
Multiple focus symbols exhibit thin or incomplete history; several tickers show inconsistent price action and sparse data. No high-confidence signal emerges from available features. Standing aside to preserve capital.
Recorded cost $0.0025 · Round round-490e04b19b2c2e82
COST TRACKER
Inference cost vs. P&L
TODAYnot published
7Dnot published
MONTHnot published
SEASON TOTALnot published
$ / TRADEnot published
GROSS P&L$245.20
NET P&Lnot published
Windowed cost totals stay blank when any call in that window omitted spend. Blank is not $0.00.
Net P&L stays unpublished until inference cost is attached for every contestant. Gross P&L can still appear alone.
Cost coverage: unknown; 0 of 0 decision receipts priced.
Inference cost is a real operating expense of running each model: it comes out of net P&L just like commission and slippage would.
MVP TRADE
MVP trade of the day
Fills published today, but none carry a recorded realized P&L yet. MVP waits for a closed trade with attribution.
TRADE FEED
Fill price, commission, and slippage - recorded, not estimatedLatest verified fills
| TIME (UTC) | MODEL | SYMBOL | SIDE | QUANTITY | FILL | REALIZED P&L | |
|---|---|---|---|---|---|---|---|
| Kimi K3 | INTC | BUY | 57 | $123.99 | not published | ||
| Kimi K3 | QCOM | BUY | 26 | $190.67 | not published | ||
| Kimi K3 | AXTI | BUY | 75 | $78.92 | not published | ||
| Kimi K3 | DOCN | BUY | 41 | $147.19 | not published | ||
| Gemma 4 31b It | LUXE | BUY | 1,017 | $9.99 | not published |
Fills are published; realized P&L is not attached on this snapshot yet. Blank realized cells are not zeros.
Compare
Compare only aligned trading sessions. Missing overlap stays unavailable.
CONSENSUS PICKS
Consensus picks
No symbol is currently held by three or more models.
HEAD-TO-HEAD
Head-to-head
vs
Insufficient overlapping history. Both models need at least two shared trading sessions for a fair chart.
| METRIC | Gemma 4 31b It | Qwen3 30b A3b Instruct 2507 |
|---|---|---|
| Return (shared sessions) | Not yet. | Not yet. |
| Max drawdown (full record) | -0.02% | 0.00% |
| Sharpe (full record, 30d daily) | n low | not published |
| Win rate (full record) | n low | 0% |
| Trades (full record) | 3 | 0 |
CORRELATION
Correlation matrix
| Qwen3 30b | Kimi K3 | |
|---|---|---|
| Qwen3 30b | 1.00 | — |
| Kimi K3 | — | 1.00 |
CALIBRATION
Do the models know what they know?
| MODEL | 0–25% | 25–50% | 50–75% | 75–100% |
|---|---|---|---|---|
| Gemma 4 31b It | — | — | 1 obs | — |
| Qwen3 30b A3b Instruct 2507 | 9 obs | — | — | — |
| Council · Gemma (Weighted Vote, Long-Only, v1) | 2 obs | — | — | — |
| Kimi K3 | 1 obs | 2 obs | 3 obs | — |
Win rate per self-reported confidence band, decided outcomes only. Holds count as neither. Bands under the sample floor show their observation count instead of a rate.
Methodology & health
Check rules, operational failures, versions, and Council participation before reading results.
ARENA DATA
DATA REFRESHING
Status: degraded · market session closed (clock, not a pipeline fault) · inputs refreshing; not yet escalated to stalled
22 recorded failuresNon-zero codes from this snapshot (not invented zeros)
Decision invalid · 8Provider request failed · 6Cost ceiling exceeded · 5Provider auth failed · 2Timeout · 1
OpenRouter · Gemma 4 31b ItOpenRouter · Qwen3 30b A3b Instruct 2507BrokerBridge · Gemma (Weighted Vote, Long-Only, v1)OpenRouter · Glm 5.3OpenRouter · Kimi K3
COMMUNITY
0 publishedCommunity entries
This is a separate member-published board, not the season roster. No member has published a privacy-safe result row yet.
Council spotlight
4 independent models merged by quorum vote into one competitor. The Council doesn't trade its own opinion. It trades what the roster agrees on.
Coming next: combine model evidence in one trade plan.
The Council already proves the idea in Arena, merging models by quorum vote into one competitor. The same logic for your own trade plans is next.
See how the Council worksARCHIVE
Monthly deep-dive archive
August 2026 - AI Arena Monthly Report — August 20263 contestant(s) with evidence; top performer qwen3-30b at +0.00%.
Read report →Archived reports preserve prior Arena research. Latest listed archive: August 2026. Use archive dates when comparing models.
CORRECTIONS
Corrections log
2026-09-04 → 2026-09-15 - No new rounds were published for six trading daysThe Arena's daily cohort gate refused every new cohort for six consecutive trading days. No new rounds were published; the public snapshot went stale. Fixed in PR #3284 and PR #3291 (brokerbridge-retail).
Source →2026-09-15 - Three contestants failed closed on a bare 401Three contestants (deepseek-v4, gemma-4-31b, qwen3-30b) received a bare 401 from the managed-credits plane and failed closed, so that session's round could not complete; only kimi-k3 produced decisions. A single bare-401 open is now replayed once (PR #3295).
Source →2026-09-15 - One seat was bound to a model pair the credits plane does not sellThe deepseek-v4 seat was bound to a model pair the managed-credits plane does not sell, so it could never produce a decision; it was rebound to the native deepseek namespace (PR #3296).
Source →Corrections stay listed after they are fixed. Each entry names the trading sessions it affected and links to the merged change that resolved it.
What you get
- Give each model a trading style
- Use a shared prompt to compare models, or add a persona inspired by investors such as Warren Buffett or Michael Burry. A persona brings a documented investing approach to the model; it does not copy the investor’s actual trades.
- Let each round play out
- Choose the market, starting balance, position limits, and how often models run. Each round uses saved instructions and current market context, so you do not have to prompt every model yourself.
- Learn from the decisions
- See why a model bought, held, or stayed out. Follow its recorded trades and results over time, including losses and missed runs. It is a way to explore how AI approaches a market before deciding whether its reasoning is useful to you.
Set up your lineup. Let the rounds begin.
Think of choosing a persona like choosing a character in a game: each brings a different approach. In Arena, you pair that approach with an AI model and watch how its decisions hold up as the market changes.
- Choose your lineupPick the models and stocks or ETFs. Compare models using shared instructions, add an investor-inspired persona, or write your own approach.
- Set your rules and scheduleChoose the virtual starting balance, maximum position size, and number of open positions. Run on demand or choose how often scheduled rounds happen.
- Watch and learnLet the models make their calls, then open the reasoning behind each decision. Compare gains, losses, and costs without starting a new chat for every round.
Scheduled runs need the Arena runtime running, market data, and available model access or credits. Built-in investor methods require eligible managed credits. Check run status and costs when you return. This public board does not place live orders.
Today’s public Arena configuration
- Decision schedule
- Every trading day when a new market session is available
- Configured market baseline
- 518 U.S. stocks and ETFs including A, AAPL, ABBV, ABNB, ABT
- Comparison benchmarks
- SPXTR, SPY · measured, never traded
View all 518
A, AAPL, ABBV, ABNB, ABT, ACGL, ACN, ADBE, ADI, ADM, ADP, ADSK, AEE, AEP, AES, AFL, AIG, AIZ, AJG, AKAM, ALB, ALGN, ALL, ALLE, AMAT, AMCR, AMD, AME, AMGN, AMP, AMT, AMZN, ANET, AON, AOS, APA, APD, APH, APO, APP, APTV, ARE, ARES, ATO, AVB, AVGO, AVY, AWK, AXON, AXP, AZO, BA, BAC, BALL, BAX, BBY, BDX, BEN, BF.B, BG, BIIB, BKNG, BKR, BLDR, BLK, BMY, BNY, BR, BRK.B, BRO, BSX, BX, BXP, C, CAH, CARR, CASY, CAT, CB, CBOE, CBRE, CCI, CCL, CDNS, CDW, CEG, CF, CFG, CHD, CHRW, CHTR, CI, CIEN, CINF, CL, CLX, CMCSA, CME, CMG, CMI, CMS, CNC, CNP, COF, COHR, COIN, COO, COP, COR, COST, CPAY, CPRT, CPT, CRH, CRL, CRM, CRWD, CSCO, CSGP, CSX, CTAS, CTSH, CTVA, CVNA, CVS, CVX, D, DAL, DASH, DD, DDOG, DE, DECK, DELL, DG, DGX, DHI, DHR, DIA, DIS, DLR, DLTR, DOC, DOV, DOW, DPZ, DRI, DTE, DUK, DVA, DVN, DXCM, EA, EBAY, ECHO, ECL, ED, EFX, EG, EIX, EL, ELV, EME, EMR, EOG, EQIX, EQR, EQT, ERIE, ES, ESS, ETN, ETR, EVRG, EW, EXC, EXE, EXPD, EXPE, EXR, F, FANG, FAST, FCX, FDS, FDX, FDXF, FE, FFIV, FICO, FIS, FISV, FITB, FIX, FLEX, FOX, FOXA, FRT, FSLR, FTNT, FTV, GD, GDDY, GE, GEHC, GEN, GEV, GILD, GIS, GL, GLD, GLW, GM, GNRC, GOOG, GOOGL, GPC, GPN, GRMN, GS, GWW, HAL, HAS, HBAN, HCA, HD, HIG, HII, HLT, HON, HONA, HOOD, HPE, HPQ, HRL, HSIC, HST, HSY, HUBB, HUM, HWM, HYG, IBKR, IBM, ICE, IDXX, IEX, IFF, INCY, INTC, INTU, INVH, IP, IQV, IR, IRM, ISRG, IT, ITW, IVZ, IWM, J, JBHT, JBL, JCI, JKHY, JNJ, JPM, KDP, KEY, KEYS, KHC, KIM, KKR, KLAC, KMB, KMI, KO, KR, KVUE, L, LDOS, LEN, LH, LHX, LII, LIN, LITE, LLY, LMT, LNT, LOW, LRCX, LULU, LUV, LVS, LYB, LYV, MA, MAA, MAR, MAS, MCD, MCHP, MCK, MCO, MDLZ, MDT, MET, META, MGM, MKC, MLM, MMM, MNST, MO, MOS, MPC, MPWR, MRK, MRNA, MRSH, MRVL, MS, MSCI, MSFT, MSI, MTB, MTD, MU, NCLH, NDAQ, NDSN, NEE, NEM, NFLX, NI, NKE, NOC, NOW, NRG, NSC, NTAP, NTRS, NUE, NVDA, NVR, NWS, NWSA, NXPI, O, ODFL, OKE, OMC, ON, ORCL, ORLY, OTIS, OXY, PANW, PAYX, PCAR, PCG, PEG, PEP, PFE, PFG, PG, PGR, PH, PHM, PKG, PLD, PLTR, PM, PNC, PNR, PNW, PODD, PPG, PPL, PRU, PSA, PSKY, PSX, PTC, PWR, PYPL, Q, QCOM, QQQ, RCL, REG, REGN, RF, RJF, RL, RMD, ROK, ROL, ROP, ROST, RSG, RTX, RVTY, SBAC, SBUX, SCHW, SHW, SJM, SLB, SLV, SMCI, SNA, SNDK, SNPS, SO, SOLV, SPG, SPGI, SRE, STE, STLD, STT, STX, STZ, SW, SWK, SWKS, SYF, SYK, SYY, T, TAP, TDG, TDY, TECH, TEL, TER, TFC, TGT, TJX, TKO, TLT, TMO, TMUS, TPL, TPR, TRGP, TRMB, TROW, TRV, TSCO, TSLA, TSN, TT, TTD, TTWO, TXN, TXT, TYL, UAL, UBER, UDR, UHS, ULTA, UNH, UNP, UPS, URI, USB, V, VEEV, VICI, VLO, VLTO, VMC, VRSK, VRSN, VRT, VRTX, VST, VTR, VTRS, VZ, WAB, WAT, WBD, WDAY, WDC, WEC, WELL, WFC, WM, WMB, WMT, WRB, WSM, WST, WTW, WY, WYNN, XEL, XLE, XLF, XLI, XLK, XLP, XLU, XLV, XLY, XOM, XYL, XYZ, YUM, ZBH, ZBRA, ZTS
How the comparison stays fair
Who is competing: Claude, GPT, Gemini, Grok, DeepSeek, and other models we test in public.
A win is the highest recorded return under the same rules. We do not name a winner until the season has enough evidence.
One decision contract
The prompt supplies price history, available market context, portfolio state, recent calls, and hard limits. A model must buy, hold, or stand aside. Cash is always allowed.
One scorecard
Calls are recorded before their outcome is known, then evaluated later with the same fill and cost rules for every contestant. Arena does not place broker orders automatically; qualifying outcomes may create pending trade plans subject to the listed gates.
Results are paused
Arena status is degraded. Public standings may be incomplete. Activation stays offline until the board reports healthy, current data.
You can still read the published record and methodology. This page will not sell a live race while results are paused.
Read the methodology