More than Just the Stock Market
Of course, the performance of larger companies impacts the stock indices to which they belong. For instance, when Apple, Microsoft, Alphabet and Amazon report results, the Nasdaq 100 makes strong moves. Traders of stock indices will be keeping an eye on the corporate calendar as well.
At times, the corporate calendar can impact all financial markets. This is because the earnings reports of certain companies are used by economists and experts to gain insights into the bigger economic picture. For example, Walmart is considered the bellwether of the US retail segment. Experts may change their US retail sales predictions based on what Walmart has reported. This also gives an indication of overall consumer spending behaviour.
Similarly, earnings reports of the largest US banks, such as Bank of America and JP Morgan Chase, give an indication of the resilience and growth of the overall economy. Experts may change their GDP growth figures based on this.
So, even traders who are not trading stocks need information on earnings and sentiment data to make informed trading decisions. Such analysis is even more important for scalpers, who take advantage of the tiniest price movements across a wide variety of assets.