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Intelligence Library
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Own the machinery once — 2 institutional Bibles (Yen Carry Bible · VIX Trading Bible). Membership never unlocks Library.
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Knowledge Topology3 nodes · 2 articlesAuto-rotating mobile mode
Knowledge Topology3 nodes · 2 articlesAuto-rotating mobile mode
#algorithmic-trading
QUANTPRO
LATESTNov 02, 2026
Data Cleaning Part 3: Look-Ahead Bias and Survivorship Bias in Backtesting
For every backtest there are two default assumptions. First, the backtest engine knew only what was knowable at the moment of execution. Second, the engine saw every liquid stock that was available to trade at that moment.
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QUANTFREE
Oct 27, 2026
What Is Data Cleaning in Trading?
Data cleaning finds and fixes wrong, missing and mistimed price data before it reaches your backtest.
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