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Welcome to the Portfolio123 Forum
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1
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3531
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September 12, 2022
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Progrmatically validate P123 Formula Via API
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1
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46
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January 19, 2026
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Win / Loss Ratio
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57
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205
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January 18, 2026
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AlgoMan's Quant Toolkit – Advanced Pre-Training Analysis for Tree-Based Models
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20
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556
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January 18, 2026
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How to use LinReg with custom formulas
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6
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176
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January 18, 2026
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Strategy Automation with Schwab
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1
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68
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January 18, 2026
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Trump ‘immediately’ imposes 25% tariffs on countries that do business with Iran. China’s on the list
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8
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169
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January 18, 2026
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Missing Euronext Listings & Incorrect Primary Assignments
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0
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21
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January 17, 2026
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SEBI reports on futures & options trading in India (the largest derivatives market globally)
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12
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69
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January 17, 2026
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Hierarchical ML Factor Ranking
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6
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102
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January 17, 2026
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Suggestions on EU strategy execution - IB linked
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6
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91
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January 17, 2026
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Earnings Estimates Based Models
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2
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88
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January 17, 2026
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Preview of our v1.1 of AI Factor: intelligent features, grid search, categorical & macro
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22
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863
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January 17, 2026
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Short Interest data starting Feb 2025 now uses same source as historical data
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4
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93
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January 17, 2026
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Glass Box or Black Box: Explainable boosting machines let you choose
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3
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56
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January 16, 2026
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NEW: Insider page with P123 ratings now available
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42
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1024
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January 16, 2026
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Overhaul of AI Factor Discussion
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13
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223
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January 16, 2026
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Don't Confuse Strategy with Outcome
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7
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111
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January 16, 2026
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Asian and Global Data are Coming!
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5
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186
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January 15, 2026
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Michael Platt's Bluecrest capital performance 2025
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0
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64
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January 15, 2026
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PIT Problem - Delisted stocks
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1
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57
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January 14, 2026
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AI Factor Parquet file download
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23
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363
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January 14, 2026
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Spread data availability
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10
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179
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January 14, 2026
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Import history data for an etf
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5
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107
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January 14, 2026
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P123 Quant Coaching Program (2026) — Factor Investing Track
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6
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128
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January 13, 2026
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PCA Formula Exporter: Automatically turn Principal Components into Ranking Systems
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5
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73
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January 13, 2026
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US vs Canada vs Europe
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10
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232
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January 13, 2026
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CEDER:SWE missing report
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0
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27
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January 13, 2026
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Loop Functions with custom formulas
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5
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144
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January 12, 2026
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New quant (Deepseek) beat Old quant (Medallion) in 2025
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1
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121
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January 12, 2026
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