Yes there is a correlation between the stock and the index, but the strength of the correlation depends on a) which index, and b) what percentage of the index does that stock comprise. Using your example of AMD, according to the Pearson Correlation formula, the daily price changes of AMD have a 32% correlation with QQQ and XLK, but a 55% correlation with SOXX, the ETF that tracks the PHLX Semiconductor Index.
%%Hello everyone. I would like to ask you experienced traders how to understand the indices and stocks correlation when trading stocks. In my case, i mostly trade tech stocks on a daily basis. My observations are that stocks mostly do what the nasdaq is doing, unless the volume is huge (Ex, AMD today), causing a divergence. When the nasdaq retraces, so do most stocks. When it trends, stocks follow.
Big stocks like amazon lead indices but indices tend to control stock behaviour on less volume. Is this correct?

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Well if tek stocks tend to follow QQQ 75%[not exact number]; that means you may do average if you are a slave to QQQ when trading tek stocks. I do like to consider QQQ...... for entry, but not so much on exit .O f course with commisons + slippage,,avarage become$ below average; but nothing here is a prediction .Good question,L9,
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I am wondering where did you get those correlations from ?
%%Im looking at QQQ right now and it seems to show less noise wich is a good thing. Is that why you prefer it to nasdaq? My strategy is buying momentum and roll stop imediatelly a little above entry point. On IB with low commissions, even if the stock turns against me minutes later the worst that can happen is a 4/5 dollar profit. Loss is unlikely unless entry is poor. Thats why I decided to ask![]()
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Yes ; that + tends to trend better up. NOT a prediction.![]()
Thanks a bunchIm looking at QQQ right now and it seems to show less noise wich is a good thing. Is that why you prefer it to nasdaq? My strategy is buying momentum and roll stop imediatelly a little above entry point. On IB with low commissions, even if the stock turns against me minutes later the worst that can happen is a 4/5 dollar profit. Loss is unlikely unless entry is poor. Thats why I decided to ask![]()