Stress-Test Your Multi-Day Trades Before Market Volatility Strikes
Holding stocks over days or weeks without a clear risk and profit plan is flying blind. Stress-test your portfolio in the AlphaTunnel: simulate the next 20 trading days, spot high-risk bleeders instantly, set smart stop-loss buffers with room to breathe, and lock in clear 2R / 3R profit targets.
⚡ Test live market data instantly • No credit card needed
A Wind Tunnel For Your Trades
Car makers test prototypes in a wind tunnel before they hit the road. We test your stocks in a market volatility simulator before you hit the BUY button.
1. Build Your Portfolio
Enter any US stocks or ETFs (like Apple, Nvidia, or Tesla), import your watchlist, or let the Smart Sizer automatically balance your capital across positions.
2. Reality Check or Stress Test
Run a live reality check with current market volatility and upcoming earnings/Fed dates, or test famous crash replays like 1987 Black Monday and 2020 Panic.
3. Get Clear Stops & 2R/3R Profit Targets
See an exact safe stop-loss level for every stock (so routine daily noise doesn't shake you out early) alongside clear 2R and 3R take-profit targets to scale out winners.
Three Practical Tools To Protect Capital & Optimize Wins
Built for active swing traders and self-directed investors: clear dollar levels instead of textbook guesswork.
Stop-Loss Wind Tunnel
Test your stock basket in 3 seconds. Find out if a morning market-maker shakeout will trigger your stop loss, see your worst-case drawdown, and get your exact ATR survival buffer.
🎯 Trade Sizer & Multi-ATR Stop Lab
Compare 1.0x–3.0x Beta-scaled ATR stops side-by-side: view 20-day shakeout probability, Half-Kelly & 1R share counts, expected days to 2R, 2-tranche bracket order tickets, and whole-basket Risk-Parity sizing.
Market Maker Trap Radar
Detect predatory market-maker micro-wicks and real-world catalyst shocks. Scans Fed interest rate decisions, FOMC announcements, and earnings dates to calculate your exact stop-hunting cushion.
The Mathematics Behind the Shield
Why standard textbook stop-losses fail—and how the Merton (1976) Jump-Diffusion engine protects you.
How the 4-Layer AlphaTunnel Engine Computes Your Risk
Behind the Merton jump formula lies our proprietary multi-stage quantitative pipeline—combining live volatility DNA, multi-path stochastic synthesis, macro shock injection, and structural thesis calibration.
Empirical Volatility DNA
Ingests 20-day Average True Range (ATR₂₀), dynamic beta (β), and annualized drift (μ) across top US equities. Grounds every simulation in real empirical dispersion rather than idealized Gaussian curves.
Merton Jump-Diffusion Synthesizer
Synthesizes 500 forward stochastic price trajectories across 20 trading days. Superimposes continuous Brownian market drift with discontinuous Poisson shock jumps (dNₜ) to model sudden overnight gaps.
Macro Stress & Catalyst Superposition
Applies non-linear correlation surge matrices during historical crash replays (1987 / 2020) and injects point-in-time discrete volatility jumps on upcoming Fed rate decisions & earnings announcement dates.
Position Sizing, Safe Stops & 2R/3R Targets
Extracts 5th–95th percentile corridors, computes 95% Tail Risk (VaR), and calculates a clear Safe Stop Buffer outside daily noise alongside concrete 2R and 3R take-profit targets for every stock.
Normal Market Drift
Standard days when buyers and sellers trade smoothly. Traditional indicators only measure this smooth part of the market.
Sudden Liquidity Shocks
When headlines hit, bids vanish, and predatory market makers hunt resting stops. Standard models ignore this; AlphaTunnel simulates it directly.
Safe Stop Buffer & 2R/3R Targets
By simulating hundreds of 20-day paths, AlphaTunnel gives you the exact stop buffer needed to survive daily noise and let your winners run to 2R and 3R.
6 Smart Tools for Better Risk & Win Management
Practical quantitative safeguards and sizing tools designed to help active swing traders avoid premature stop-outs and maximize winners.
Trade Stop-Loss Hunt Radar
Evaluates your personal planned stop price against predatory liquidity wicks. Instantly flags whether you are trapped in the Hunt Zone or safely cushioned below support.
Correlation Matrix & Diversification
Reveals hidden cross-asset covariance across your portfolio. Measures sector concentration risk and calculates your exact Diversification Ratio to prevent simultaneous blowouts.
Tail-Risk Options Collar
Calculates institutional zero-cost protective collars (5-10% OTM puts funded by covered calls) to hard-cap catastrophic 20-day downside at near-zero net debit.
Panic Drop Shield
Detects high-velocity plunges and predatory volume spikes across your stocks. Alerts you immediately to avoid knife-catching until institutional absorption is verified.
Recommended Stop Buffer & 2R/3R Targets
Calculates a calibrated 2.5% to 15% stop buffer below daily noise—plus exact 2R and 3R take-profit levels so routine wicks don't shake you out before the trend pays off.
Revenge-Trading Lock & Smart Sizer
Interactive 45-minute cooldown timer, reset checklist, and inverse-volatility portfolio sizer so high-ATR stocks never dominate your risk budget.
Institutional Trust & Cloud Security
Bank-grade data isolation, full European GDPR compliance, and air-gapped brokerage safety.
Frankfurt Native Cloud
All simulation calculations and user databases run strictly in Google Cloud europe-west3 (Frankfurt, Germany). Low-latency European execution with zero unauthorized transatlantic data transit.
100% Capital Safety
AlphaTunnel is a standalone risk simulation engine. We never connect to your live brokerage account, execute trades, or hold custody of funds. Your actual trading money remains 100% untouched and safe in your own broker.
GDPR Art. 15, 17, 20 Native
Full European data sovereignty. Every user has automated, 1-click self-service access to export their complete cryptographic data dossier (JSON) or permanently erase their account and data in seconds.
PCI-DSS Level 1 Stripe Billing
Subscriptions and payment details are processed exclusively through Stripe's certified Level 1 PCI-DSS infrastructure. Credit card details never enter or touch AlphaTunnel servers.
Transparent Prosumer Pricing
Institutional risk analysis at consumer-friendly subscription rates.
Explorer (Free)
€0 / month
- 3 Stress Test Runs / month
- Up to 5 Portfolio Assets
- 1-Trade Stop-Loss Hunt Zone Check
- Flexible Tactical Horizon (2d, 5d, 20d)
- Live Market & 2026 Macro Surge Scenarios
- 200 Stochastic Monte Carlo Paths
- Interactive Trader Discipline Tools
Alpha Pro
5,00 € / month
- 50 Stress Test Runs / month
- Up to 30 Portfolio Assets
- Full Portfolio Stop-Loss Validation
- CSV & JSON Import / Export with Stops
- All 4 Historical Crash Scenarios
- Full 4-Pillar Stop-Loss Armor & Sizer
- Automated Sunday Night Risk Digest
- Exportable CSV & PDF Risk Dossiers
Alpha Expert
15,00 € / month (Monthly billing only)
- Unlimited Stress Tests
- Up to 100 Portfolio Assets
- Tail-Risk Options Collar Recommender
- Cross-Asset Correlation Matrix & Diversification
- 1,000 Stochastic Monte Carlo Paths
- Fragility Audit & Algorithmic Prescriptions
- Automated Sunday Night PDF Digest
- Priority In-Memory Compute Queue
Key Questions About Stop-Loss Math, Position Sizing & Safety
Direct answers on how the Merton Jump-Diffusion Wind Tunnel and Multi-ATR Stop Lab protect your swing portfolio.
How does AlphaTunnel calculate safe stop-loss distances and 2R/3R profit targets?
AlphaTunnel combines empirical 20-day Average True Range (ATR₂₀), asset beta (β), and Merton (1976) Poisson jump-diffusion paths across up to 1,000 simulated 20-day trajectories. In the Trade Sizer & Stop Lab, you can compare 5 stop tiers (1.0x to 3.0x Beta-scaled ATR) side-by-side—seeing exact 20-day stop-hunt shakeout risk, execution slippage, 1R share counts, expected days to reach 2R, and 2-tranche scale-out levels (50% at 2R with stop moved to breakeven, 50% at 3R).
Does AlphaTunnel connect to my brokerage account or place live trades?
No. AlphaTunnel Labs is 100% physically and mathematically air-gapped from live brokerage accounts. We never ask for broker credentials or trading API keys, and zero live orders are ever executed. You test and size your trades in a safe sandbox, then copy your ready-to-use Bracket Order Ticket into your broker of choice.
Can I analyze European / DACH stocks, ISINs, or manage my portfolio in Euros (€)?
Yes. You can toggle the entire workspace between $ USD and € EUR at any time. Our Smart European & DACH Ticker Resolver automatically maps Xetra/European tickers and ISINs (such as SAP.DE, ASML.AS, SIE.DE, or DE0007164600) to their liquid US ADR/equity equivalents, and you can import CSV portfolios directly from Trade Republic, Scalable Capital, ING, Comdirect, or Interactive Brokers.
How can I hedge tail-crash risk if I don't trade options?
In addition to institutional Protective Puts and Zero-Cost Options Collars, AlphaTunnel includes a Non-Options Inverse ETF Shock Absorber. It calculates the exact number of shares and dollar allocation of 1x Inverse ETFs (such as PSQ for Nasdaq-100 / tech-heavy baskets or SH for S&P 500 baskets) needed to neutralize your excess tail risk—with a 1-click button to simulate the hedged portfolio immediately.
Stop-Loss Wind Tunnel
Enter your stocks, pick a crash scenario, and test your stop-loss buffer in 3 seconds.
1. Your Stocks & Trade Size
| Ticker | Sector | Allocation ($) | Weight (%) | Daily Volatility | Action |
|---|
2. Reality Check & Stress Test
3. 20-Day Catalyst Radar (Fed & Earnings Horizon)
Real-world macro announcements and company earnings occurring during your 20-day horizon.
🎯 Trade Sizer & Stop Lab
Compare 1.0x–3.0x ATR stop cushions, calculate exact 1R share counts, monitor correlated portfolio heat, and auto-balance your swing basket.
1. Account Risk Budget & Dual Portfolio Heat Meter
Set your account capital and max risk per trade (1R) to evaluate gross vs. correlation-adjusted open risk across your basket.
📉 Drawdown Recovery & Loss-Streak Runway
2. Multi-ATR Stop & Shakeout Sensitivity Matrix (1.0x – 3.0x ATR)
See how widening your stop from 1.0x to 3.0x Beta-scaled ATR reduces 20-day stop-hunt probability and adjusts your 1R share count.
| ATR Multiplier | Stop Floor & Distance | 20d Shakeout Risk | 1R Shares & Position | 2R / 3R Profit Targets | Apply |
|---|
Dominic's Admin Mission Control
Live platform pulse, VIP tester management, and real-time simulation telemetry stream.
🚧 Foreground Maintenance Curtain & Release QA Gate
Put a live maintenance curtain in the foreground for public visitors while you or automated Secret Manager QA probes test production safely.
📣 Automated Organic Campaign Studio & Pushover Dispatcher (v2.0)
Generates a live 1,000-path Merton simulation + anonymized ?share= snapshot, computes v2.0 Multi-ATR & Correlated Heat metrics, and provides 100% Plain TXT (zero Markdown) or Channel-Formatted Markdown copy for Reddit (EN/DE), X/FinTwit & Discord.
Invite & Promote User / Friend
Directly invite a friend for testing or elevate any user to Pro, Expert, VIP, or Founder:
User & Friends/Family VIP Manager
Search registered users and toggle VIP tester privileges instantly:
| User Email | Display Name | Tier | Quota Used | MFA Active | Tier Management & VIP |
|---|
Live Simulation Telemetry Audit Stream
Real-time trace of stress tests executed across the platform:
| Timestamp | User | Basket Tickers | Scenario | Max DD% | Shakeout% | Verdict | Latency |
|---|