Category: Finance & Quant
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Backtrader Memory Leak on Multi-Year Tests: 3 Debug Fixes
Fix Backtrader memory leaks in long backtests with 3 proven solutions: cerebro tuning, data cleanup, and RAM monitoring to scale your strategy tests.
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LSTM vs Transformer: S&P 500 1-Year Benchmark Results
LSTM vs Transformer showdown: 1-year S&P 500 predictions reveal surprising accuracy gaps. Which architecture wins for financial forecasting?
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NumPy Vectorization Cuts Cointegration Test Time by 8x
Nested loops in cointegration tests killed my backtest speed. NumPy matrix ops cut 47 seconds to 5.8 seconds โ here's the exact vectorization pattern.
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yfinance to Polygon.io: 4 Breaking Changes in Migration
yfinance to Polygon.io migration breaks in 4 hidden ways: timezone handling, adjusted close formulas, rate limits, and missing bars. Real fixes.
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Hardware Wallet Security: 3 Attacks That Bypass the UI
Address verification on hardware wallets isn't foolproof โ here are 3 attacks that bypass the screen, plus the security hierarchy that actually works.
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Kalman vs Particle vs LSTM: Trade Signal Latency Under 5ms
Particle filters hit 47ms latency spikes vs Kalman's 0.02ms. Here's the benchmark code and when each filter actually wins for trade signals.
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Factor Models vs ML: Alpha with 200 Samples, Not 200K
Compare factor models and ML for alpha generation in low-data regimes. Learn why traditional quant methods outperform deep learning with limited samples.
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yfinance Alternatives 2026: 7 Free APIs Compared
Tested 7 free stock APIs at 5-second intervals during market open. yfinance handled 360 requests; Alpha Vantage died at 5. Real latency and quota numbers.