Based on the chart provided, we can conclude that the stock prices of Montgomery Ward and General Motors have decreased between September 3 and November 13.
Montgomery Ward's stock price decreased from 73 to 36, while General Motors' stock price decreased from 466 to 49.
This indicates a significant drop in value for both companies during this time period. It's important to note that stock prices can fluctuate for various reasons such as market conditions, company performance, and investor sentiment. In this case, the decrease in stock prices suggests that investors may have lost confidence in these companies or that there may be negative factors impacting their performance. However, without further information, we cannot determine the exact reasons for the decrease in stock prices.