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Kelly Criterion calculator and portfolio tracker with cloud sync for prediction markets. Alpha Quant Terminal v9.2.3 — The Execution Terminal for Prediction Markets Stop guessing your stake size. Alpha Quant Terminal is a hyper-fast quantitative execution tool built specifically for Polymarket. Every feature exists to answer one question: how much capital do I deploy on this edge? Paste a Polymarket URL, set true probability against market price, and get exact Kelly Criterion stake recommendations across four aggression levels — or switch to flat bankroll % sizing for fixed-stake plays. Log trades in one click, sync across devices with a passphrase, track whale wallets, and analyze your edge over time. ━━━━━━━━━━━━━━━━━━━━━━━━━ WHY USE IT Most prediction-market traders size positions by feel. AQT replaces "feel" with mathematics. Two sizing engines, in-place sport detection, automatic Polymarket integration, and per-sport version tagging let you measure which models actually work and which don't. ━━━━━━━━━━━━━━━━━━━━━━━━━ CORE FEATURES ▸ Fractional Kelly Engine — Input price + true probability, get exact stakes for Full / Half / Quarter / Eighth Kelly fractions ▸ BANK % Flat Sizing Mode — Skip Kelly entirely with a 5th tile for flat bankroll % sizing (0.5%–100%). Always-visible gradient slider escalates color from gold → amber → orange → red as you increase exposure. Quick-pick buttons for 1–5% ▸ Polymarket Integration — Floating "α Add to AQT" button on every market page captures URL, title, and team images in one click ▸ Cloud Sync — Push and pull your full portfolio across devices using a private passphrase. No account, no signup ▸ Multi-Profile — 3 independent portfolios with separate bankrolls, plus an ALL view that merges them ▸ Sport + Version Tagging — Per-sport version memory with autocomplete dropdown. Tag every trade by model version to measure which iterations actually work ▸ Live Score Fetch — One-click "RESULT" button pulls live scores from ESPN's public API for NHL, NBA, MLB, NFL, ATP/WTA, and major football leagues ▸ Whale Watcher — Track up to 20 Polymarket wallets. Real-time trade feed with smart fill aggregation, threshold-based alerts, and per-wallet filtering ▸ Shareable Cards — Canvas-rendered PNL cards for individual trades and a complete season performance card. PNG export for Twitter/Discord ▸ Shadow Bets — Paper-trade any position without touching your bankroll. Dedicated tab with separate win-rate tracking ▸ Advanced Analytics — Equity curve, calendar heatmap, win-rate trend, cumulative PnL by sport, profit by day-of-week, risk/reward ratio, longest streaks, monthly breakdowns ▸ Side Panel + Fullscreen Modes — Lock the terminal alongside Polymarket, or open as a full tab for analysis sessions ▸ CSV Export & Import — Full data control per profile, including BANK% actual vs intent columns for execution drift analysis ▸ 6 Themes — Midnight, Ocean Blue, Stealth Black, Forest Green, Cyber Yellow, Coffee Brown ━━━━━━━━━━━━━━━━━━━━━━━━━ HOW TO START Pin the extension to your Chrome toolbar Set your bankroll in the BANKROLL ($) field Paste a Polymarket URL or click the floating button on any market page Set your true probability — the Kelly matrix computes stake sizes automatically. Or tap BANKROLL (%) for flat sizing Click LOG to record the trade Use Cloud Sync on your second device to mirror everything via a shared passphrase. ━━━━━━━━━━━━━━━━━━━━━━━━━ RECENT CHANGELOG v9.2.3 — BANK % flat-sizing mode with 4-tier visual escalation. Sport icons for all 8 supported sports + esports. Polymarket activity paste parser hardening. CSV import bug fixes (header-based column mapping). Sync coverage extended to UFC and ESP version tags. v9.2 — Polymarket floating button. Uniform matchup thumbnails. Restructured analytics with Best/Worst trades on top. Per-sport version autocomplete. Shadow bets / paper trading mode. Live prefill across popup, side panel, and fullscreen tab. Whale Watcher beta. CSP-compliant rewrites. v9.1 — Live score fetch via ESPN API. Expandable charts with PNG export. Six new analytics sections (rolling win-rate, cumulative PnL by sport, profit by day-of-week, risk/reward ratio, longest streaks, average stake by sport). Unified filter system. Smarter sport detection via Polymarket gamma-api. Per-sport version memory. Lazy log rendering for 500+ entry portfolios. v9.0 — Firebase cloud sync. Full backup/restore as JSON. Batch logging for one event with multiple markets. Multi-tab position book. Sticky notes. Shareable PNL cards. Season performance card. Equity curve. Sport color coding. Position correlation warning. Duplicate detection. ━━━━━━━━━━━━━━━━━━━━━━━━━ Know your edge. Size your risk. Deploy capital. ━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY This extension does not collect or track personal data. All trade data is saved to your local browser storage. Cloud Sync uses Firebase Realtime Database — data is encrypted in transit via HTTPS and accessible only with your private passphrase. Whale Watcher uses Polymarket's public Data API to read on-chain trade history of wallets you choose to track — no authentication, no private keys, no wallet connection required. No accounts, no third-party analytics, no ads. What changed and why: Hero pitch in 2 paragraphs. New users get the value prop in 30 seconds before scrolling. "Why use it" section — answers the implicit question every reader has ("why this vs the dozen other Kelly calculators on Github?"). The differentiator is BANK %, sport tagging, and Polymarket integration. Core features as a flat list with checkmarks. Easier to scan than version-grouped sections. New user doesn't care whether something shipped in v9.0 or v9.2 — they just want to know if AQT does X. BANK % is item #2 in core features. It's the newest differentiator and shouldn't be hidden in a "what's new" section. "How to start" section — addresses installation friction. Most extensions skip this and lose first-time users at the "what do I do now" moment. Changelog moved to bottom and condensed. Returning users can still see what changed per version, but each version is a single paragraph instead of a wall of bullets. Whale Watcher promoted from "Address Tracker (BETA)" — the feature is no longer beta-grade and the name change reflects it. Privacy section streamlined — same content, more readable. A few things I removed deliberately: The "V9.2 — WORKFLOW & POLISH UPDATE" header style — version headlines belong on a release page, not in a Web Store listing where new users are 90% of readers. Most v9.0 bullet points — too far back for the changelog section. "(BETA)" labels — if a feature is shipping in production it shouldn't be labeled beta in user-facing copy.