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Tom Preston on the Hidden Risk Most Traders Never Check

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ticker lesson

Breakdown

0:00lesson

Correlation in trading explained

  • Correlation is the relationship between two objects
  • Stocks in the same industry move together
  • High correlation can lead to oversized delta positions
  • Check correlation before entering new trades
2:21lesson

How to check correlation on a platform

  • Use platform indicators to check correlation
  • Correlation ranges from -1 to +1
  • Positive correlation means both assets move together
  • Magnitude shows strength of correlation
4:51lesson

Interpreting correlation numbers

  • Higher numbers mean stronger correlation
  • QQQ has 82% correlation with SPX
  • Nvidia has 77% correlation with SPX
  • TSM has 84% correlation with Nvidia
7:24lesson

Implications of high correlation

  • High correlation can add risk in a sector
  • Nvidia and TSM are both semiconductors
  • Adding trades in correlated assets increases exposure
  • Correlation analysis is quick and easy

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