Final answer:
The S&P 500 and Dow Jones Industrial Average are key stock market indicators that reflect market trends and investor sentiment. While I cannot provide the exact closing values for yesterday, these indices have shown an overall upward trend with periods of volatility. For daily closing values, refer to financial news sources.
Step-by-step explanation:
The S&P 500, Dow Jones Industrial Average, and Nasdaq are all crucial indicators of market performance in the United States. The S&P 500 is a weighted average market capitalization index, and the Dow Jones Industrial Average is a price weighted average of 30 industrial stocks, both providing a snapshot of market health and investor sentiment. It's important to note that while the trend in the stock market is generally upward over time, there are periods of fluctuation, with significant rises and dips.
Specific daily closing values, such as what the S&P 500, Dow Jones, or Nasdaq closed at yesterday, can be found on financial news websites or databases that track market activity. Historical trends indicate that after a period of dramatic increase from the 1980s to 2000, stock prices saw volatility between 2000 and 2013 but largely ended at similar levels. Since 2009, the indexes have, for the most part, seen a general increase.