What does it mean when the Dow drops?

Related questions

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3. Is a stock split good?
4. What are advantages of a stock split?
5. How many stocks are on the Nasdaq?
6. What is the difference between Dow and NYSE?
7. What was highest Dow Jones closing?
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Tags

1. #divisor
2. #account
3. #taking
4. #stock
5. #reflection
6. #price
7. #considered
8. #valuable
9. #weighted
10. #prices
11. #previous
12. #moves
13. #points
14. #closing
15. #simply
16. #means
17. #stocks
18. #average
19. #itself
20. #quote