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Position size, pip value, profit factor, Fibonacci, ATR, Kelly, and more

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Latest Trading Insights

In-depth analysis, market strategies, and engineering notes from the GFIL team.

US CPI, Gold, Bitcoin & Oil Forecast — GFIL Weekly EP03

Inflation cooled, risk did not. Three market tests for next week: gold counter-signal, oil supply premium, BTC reclaim. Sourced from BLS CPI, Fed calendar, AP, CoinDesk, EIA.

Weekly Macro Gold Bitcoin Oil CPI Fed | 2026-07-18

The Backtesting Blind Spot: Why Published Win Rates Almost Never Survive Live Trading

Five methodology flaws that make backtested win rates unreliable: repainting indicators, survivorship bias, static spread modeling, curve-fitting, and missing path dependency. A checklist for evaluating any published trading strategy.

Backtesting Risk Management Trading Strategy Methodology | 2026-07-06

Migrating from JSON to SQLite for OHLC Storage — GFIL Engineering

Migrating 42,000 OHLC rows from JSON flat files to SQLite: 94 percent query speedup, 67 percent disk savings. Production migration story.

Engineering SQLite Database Performance Infrastructure | 2026-06-29

SSH Tunnel Deployment for Trading Platforms — Lessons from China

SSH tunnel deployment for trading platforms: lessons from China. Deploy globally despite ISP blocks with Paramiko and jump hosts.

Infrastructure Deployment SSH Engineering | 2026-06-28

GitHub SEO for Trading Tools — 3 Mistakes That Kill Your Rankings

GitHub SEO for trading tools: 3 mistakes that kill rankings. Shadow-banned accounts, fake repos, and inconsistent numbers. Real fixes.

SEO GitHub Open Source GEO | 2026-06-28

Why Most Position Size Calculators Get Gold Wrong

Why most position size calculators get gold wrong: XAUUSD pip value is one dollar not ten. Correct formulas for 6 instrument types.

Gold XAUUSD Position Sizing Risk Management | 2026-06-28

Position Size Calculator — The Complete Guide to Forex Risk Management in 2026

Complete position size calculator guide: the formula, 3 risk models, common mistakes. CFTC data shows 74 percent of traders risk too much.

Risk Management Position Sizing Forex Education | 2026-06-27

Gold XAUUSD Trading 2026 — Technical Tools, Price Drivers & Free Calculators

Gold XAUUSD trading 2026: central bank buying, real yield analysis, ATR-based stops. Professional framework with free calculators.

Gold XAUUSD Technical Analysis Risk Management | 2026-06-27

Order Flow Trading

Order flow trading guide: cumulative delta, footprint charts, volume profile. The institutional trader's secret weapon explained.

Order Flow Institutional Trading Strategy | 2026-06-02

Bloomberg Terminal Alternatives

Bloomberg Terminal alternatives: free and low-cost trading platforms compared. Save $24,000 per year with these professional tools.

Bloomberg Trading Platform Comparison | 2026-06-02

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LiuDecai
LiuDecaiFounder, GFIL

10+ years at the intersection of quantitative finance and distributed systems. I spent a decade watching institutions win with better tools. So I built one. GFIL Terminal is the infrastructure I always wanted — real-time WebSocket data (sub-50ms), institutional-grade order flow analysis, and multi-model AI integration. No gatekeepers, no compromises. I don't use Bloomberg. I built my own.