Important to know the weightings in indices you trade &amp; impact a particular co. can have.  Below is makeup of Dow, $JNJ is 4.07% while $JPM is 2.96% - the $DJI uses a price-weighted calc method while the $SPX &amp; $NDX use a market cap weighted calculation. #YM_F #ES_F #NQ_F https://t.co/TcRXPXoVFo