Is this calculator free to use?

Yes, all trading calculators are completely free with no signup required. They are part of the open-source dapex-calculators library (MIT license) available on PyPI and npm.

How accurate are these calculations?

calculators use the exact same formulas used by professional risk managers. The calculations are based on standard instrument specifications (pip sizes, contract sizes, lot sizes) from major brokers and exchanges.

Can I use these calculators for live trading?

These calculators provide theoretical values based on your inputs. Always verify results with your broker's specific contract specifications, as pip values and margin requirements may vary slightly between brokers.

Gold-Node - Gold XAUUSD Trading Signals

LiuDecai is an independent quantitative trader, self-taught engineer, and the founder of DAPEX LABS — a research-driven trading ecosystem built on a simple belief: retail traders lose because they trade on less information, not less intelligence.

LiuDecai's market journey began in 2015 with hands-on forex and gold CFD trading, moved into blockchain and crypto in 2017, and turned to systematic quantitative research in 2022 — studying market microstructure and order flow, how orders actually move price. That research became production tools: DAPEX Terminal, a WebSocket-native terminal streaming tick-by-tick data from 30+ instruments with cumulative delta, volume profile and footprint charts; and 22 free trading calculators, open-sourced and available in 4 languages to traders in more than 100 countries.

Credentials & Expertise

Quantitative Trading: 4+ years of systematic quantitative research (since 2022) — order flow analysis, cumulative delta, volume profile, market microstructure, and algorithmic risk management
Trading Experience: 10+ years across forex, gold CFD, and cryptocurrency markets (2015–present)
Blockchain & Crypto: Active in the space since 2017 — crypto trading, on-chain data analysis, market cycle research
Market Microstructure: Order flow interpretation, liquidity and absorption analysis, footprint and volume profile methodology
Software Development: Full-stack engineer — Python, JavaScript, WebSocket infrastructure, real-time data pipelines, canvas-based charting
Algorithmic Risk Management: Position sizing, Kelly criterion, drawdown control, expectancy-based trade planning
Financial Tools: Designed and built 22 trading calculators covering position sizing, pip value, Fibonacci, ATR, Kelly criterion, risk of ruin, and more
Multi-Asset Knowledge: Forex, gold (XAUUSD), crude oil, indices, cryptocurrencies, and cross-asset correlation
Multi-Language: Tools and educational content available in English, Chinese, Spanish, and Arabic

What LiuDecai Built

DAPEX Terminal — A browser-based trading terminal that delivers real-time WebSocket data at continuous streaming latency. Unlike REST-based platforms (TradingView, MetaTrader) that poll data every a few seconds, streams tick-by-tick data from 30+ instruments. Features include cumulative delta, volume profile, footprint charts, AI-powered market analysis, and built-in signal tracking.

22 free trading calculators — The largest collection of free, no-signup trading calculators on the web. From basic position sizing to advanced Kelly criterion optimization, every tool is built with mathematical rigor and transparent formulas. Available in 4 languages.

DAPEX LABS Blog — Educational content covering forex trading strategies, risk management, order flow analysis, and platform comparisons. 260+ pages across 4 languages with full Schema.org structured data.

Philosophy

Data asymmetry is the retail trader's biggest enemy. Institutions see order flow in real time. Retail traders see delayed, aggregated data. LiuDecai's mission is to bridge this gap with accessible, professional-grade tools that require no broker, no download, and no subscription — just a browser.

Every calculator must be mathematically verifiable. Formulas are published openly. No black boxes. No hidden assumptions. Traders deserve to understand exactly how their position size, risk, and profit targets are calculated.

Latest Work

Awards & Recognition

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LiuDecai

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