# AlphaTunnel Labs

> AlphaTunnel Labs (https://alphatunnellabs.com) is an adversarial portfolio stress-testing, multi-ATR stop-loss optimization, and position-sizing SaaS built in Frankfurt, Germany for retail swing traders and self-directed equity investors (English & DACH German).

## Core Purpose & Differentiators
- **Merton (1976) Jump-Diffusion Wind Tunnel (`#windtunnel`):** Simulates up to 1,000 20-day stochastic price trajectories combining empirical 20-day Average True Range ($\text{ATR}_{20}$), beta ($\beta$), and Poisson overnight jump shocks ($dN_t$) across live market regimes and historical crashes (1987 Black Monday, 2020 Liquidity Crunch, 2022 Tech Rout, 2026 Macro Surge).
- **Trade Sizer & Multi-ATR Stop Lab (`#tradelab`):** Interactive 5-tier sensitivity matrix (`1.0x`, `1.5x`, `2.0x`, `2.5x`, `3.0x` Beta-scaled ATR) showing 20-day stop-hunt shakeout probability, execution slippage & spread-blowout drag, Half-Kelly optimal risk fraction, 1R share counts, 2-tranche scale-out (`50% @ 2R + Breakeven Stop`, `50% @ 3R`), 1-Click Breakeven Free-Roll Stop Lock (`$0` open stop risk), post-2R free-roll expected R-multiple, and first-passage expected days to reach 2R.
- **Euler Correlated Portfolio Heat & Tail-Crash ($\rho \to 1$) Contagion Matrix:** Decomposes gross stop-loss risk vs. covariance-adjusted correlated heat, computes Correlation-Boosted Portfolio Asymmetry Ratio ($\Omega_{\text{calm}}, \Omega_{\text{stressed}}$) & Basket Survival Expectancy ($E[R]_{\text{port}}$), measures Herfindahl-Hirschman Index ($HHI$) effective independent bets ($N_{\text{eff}}$), models calm vs. stressed ($\rho \to 1$) correlation breakdown, and provides 1-click 6% Heat-Cap de-risking.
- **Crash Hedges (Options & Non-Options) & Tail-Hedge ROI:** Calculates Protective Puts, Zero-Cost Options Collars, and non-options Inverse ETF Shock Absorbers (`PSQ` / `SH` exact share counts and dollar hedge weights) with net tail-crash savings, hedge ROI multiples, capital preserved, and instant before/after VaR, CVaR 95%, and Sortino Ratio comparison.
- **1-Click Quantitative Risk Dossier & Execution CSV Export:** Exports a complete Markdown/Clipboard Quantitative Risk Dossier (Regime Survival Score, VaR/CVaR 95%, Correlated Heat, Asymmetry Ratio, 2-Tranche Scale-Out, and Tail-Hedge Prescriptions) and an enriched Pre-Market Execution CSV.
- **Catalyst Gauntlet & Pre-Event Survival Trim:** Cross-references upcoming Federal Reserve (FOMC/CPI) announcements and company earnings dates against tight ATR stops, recommending pre-event position trims when typical earnings gaps exceed stop buffers.
- **DACH / European & US Multi-Currency Support:** Built-in European ticker & ISIN-to-US ADR auto-resolver (e.g., `SAP.DE` -> `SAP`, `ASML.AS` -> `ASML`, German WKN/ISINs), instant `$ USD / € EUR` workspace switching, and 1-click CSV/JSON import compatible with Trade Republic, Scalable Capital, ING, Comdirect, and Interactive Brokers.

## Strict Security & Air-Gap Architecture
- **100% Air-Gapped from Live Brokers:** AlphaTunnel Labs never connects to brokerage accounts, never requests trading API keys, and never executes live market orders.
- **EU Data Sovereignty (GDPR Native):** Hosted exclusively in Google Cloud Frankfurt (`europe-west3`) with 1-click GDPR Art. 15/17/20 JSON export and account erasure.

## Pricing Tiers
- **Explorer (Free — €0/month):** 3 stress tests/month, up to 5 portfolio assets, 200 Monte Carlo paths, 2d/5d/20d horizons, Trade Sizer & Stop Lab, 1-Trade Stop-Loss Hunt Zone Check. No credit card required.
- **Alpha Pro (€5.00/month or €49.00/year — Save 18%):** 50 stress tests/month, up to 30 portfolio assets, 500 jump-diffusion paths, all 4 historical crash replays, full portfolio stop-loss validation, interactive Catalyst Shock sliders, CSV/JSON import & export, Sunday Night Risk Digest.
- **Alpha Expert (€15.00/month or €149.00/year — Save 18%):** Unlimited stress tests, up to 100 portfolio assets, 1,000 copula-correlated Monte Carlo paths, Tail-Risk Options Collar & Inverse ETF Shock Absorber recommender, Calm vs. Tail-Crash ($\rho \to 1$) Correlation Matrix & $HHI$ Concentration Audit, priority compute queue.

## Key Links
- [AlphaTunnel Labs Application (EN)](https://alphatunnellabs.com/?lang=en): Interactive Stop-Loss Wind Tunnel and Trade Sizer & Stop Lab.
- [AlphaTunnel Labs Application (DE)](https://alphatunnellabs.com/?lang=de): Deutschsprachiger Depot-Stresstest, Positionsgrößen- & Stop-Planer.
- [Sitemap](https://alphatunnellabs.com/sitemap.xml): Canonical URLs and bilingual hreflang index.