Correlation Between GM and Basic Materials

Can any of the company-specific risk be diversified away by investing in both GM and Basic Materials at the same time? Although using a correlation coefficient on its own may not help to predict future stock returns, this module helps to understand the diversifiable risk of combining GM and Basic Materials into the same portfolio, which is an essential part of the fundamental portfolio management process.

By analyzing existing cross correlation between General Motors and Basic Materials, you can compare the effects of market volatilities on GM and Basic Materials and check how they will diversify away market risk if combined in the same portfolio for a given time horizon. You can also utilize pair trading strategies of matching a long position in GM with a short position of Basic Materials. Check out your portfolio center. Please also check ongoing floating volatility patterns of GM and Basic Materials.

Diversification Opportunities for GM and Basic Materials

0.91

Correlation Coefficient

GM  Basic Materials

Almost no diversification

The 3 months correlation between GM and Basic is 0.91. Overlapping area represents the amount of risk that can be diversified away by holding General Motors and Basic Materials in the same portfolio, assuming nothing else is changed. The correlation between historical prices or returns on Basic Materials and GM is a relative statistical measure of the degree to which these equity instruments tend to move together. The correlation coefficient measures the extent to which returns on General Motors are associated (or correlated) with Basic Materials. Values of the correlation coefficient range from -1 to +1, where. The correlation of zero (0) is possible when the price movement of Basic Materials has no effect on the direction of GM i.e., GM and Basic Materials go up and down completely randomly.

Pair Corralation between GM and Basic Materials

Allowing for the 90-day total investment horizon General Motors is expected to generate 2.92 times more return on investment than Basic Materials. However, GM is 2.92 times more volatile than Basic Materials. It trades about 0.18 of its potential returns per unit of risk. Basic Materials is currently generating about 0.21 per unit of risk. If you would invest  5,820  in General Motors on September 6, 2025 and sell it today you would earn a total of  1,709  from holding General Motors or generate 29.36% return on investment over 90 days.

Time Period	3 Months [change]
Direction	Moves Together
Strength	Very Strong
Accuracy	100.0%
Values	Daily Returns

General Motors  vs.  Basic Materials

Pair Trading with GM and Basic Materials

The main advantage of trading using opposite GM and Basic Materials positions is that it hedges away some unsystematic risk. Because of two separate transactions, even if GM position performs unexpectedly, Basic Materials can make up some of the losses. Pair trading also minimizes risk from directional movements in the market. For example, if an entire industry or sector drops because of unexpected headlines, the short position in Basic Materials will offset losses from the drop in Basic Materials' long position.

The idea behind General Motors and Basic Materials pairs trading is to make the combined position market-neutral, meaning the overall market's direction will not affect its win or loss (or potential downside or upside). This can be achieved by designing a pairs trade with two highly correlated stocks or equities that operate in a similar space or sector, making it possible to obtain profits through simple and relatively low-risk investment.

Check out your portfolio center.

Note that this page's information should be used as a complementary analysis to find the right mix of equity instruments to add to your existing portfolios or create a brand new portfolio. You can also try the Premium Stories module to follow Macroaxis premium stories from verified contributors across different equity types, categories and coverage scope.