Category: Finance & Quant
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ccxt vs Native API: Order Speed Test on Binance & Upbit
Binance limit orders via ccxt cost 120ms vs native REST. Upbit shows 40ms overhead. When the abstraction tax kills your edge.
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Vectorized Order Book Processing: 5x Faster HFT Signals
Cut order book signal latency by 5x with NumPy vectorization. Real benchmarks on Binance L2 feeds, iceberg detection, and multi-asset correlation.
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Trading Fees Kill 73% of Backtest Alpha: Real Slippage Data
Trading fees destroy most backtest profits. Learn how slippage models reveal the 3 hidden costs pros trackโand retail traders miss.
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ccxt Binance vs Upbit: 47ms Latency Gap in Order Execution
Binance executes orders 47ms faster than Upbit through ccxtโhere's the benchmark data from 500 order cycles and where those milliseconds actually go.
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Walk-Forward Optimization: When Retraining Loops Work
Learn walk-forward optimization techniques that prevent overfitting in trading systems. Build retraining loops that adapt to market regime changes.
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Walk-Forward Optimization: Avoiding Lookahead Bias in 3 Steps
Fix lookahead bias in your backtest: walk-forward optimization prevents curve-fitting by testing on unseen future data. Real code, real SPY results.
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My ML Crypto Trading Bot Lost Money: 2 Hard Lessons
I built an ML crypto trading bot, ran it live for weeks, and lost money. The two lessons that mattered most weren't about machine learning at all.