Correlation Between Delta Air and Cisco Systems

Can any of the company-specific risk be diversified away by investing in both Delta Air and Cisco Systems 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 Delta Air and Cisco Systems into the same portfolio, which is an essential part of the fundamental portfolio management process.

By analyzing existing cross correlation between Delta Air Lines and Cisco Systems, you can compare the effects of market volatilities on Delta Air and Cisco Systems 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 Delta Air with a short position of Cisco Systems. Check out your portfolio center. Please also check ongoing floating volatility patterns of Delta Air and Cisco Systems.

Diversification Opportunities for Delta Air and Cisco Systems

0.7

Correlation Coefficient

Delta Air  Cisco Systems

Poor diversification

The 3 months correlation between Delta and Cisco is 0.7. Overlapping area represents the amount of risk that can be diversified away by holding Delta Air Lines and Cisco Systems in the same portfolio, assuming nothing else is changed. The correlation between historical prices or returns on Cisco Systems and Delta Air 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 Delta Air Lines are associated (or correlated) with Cisco Systems. Values of the correlation coefficient range from -1 to +1, where. The correlation of zero (0) is possible when the price movement of Cisco Systems has no effect on the direction of Delta Air i.e., Delta Air and Cisco Systems go up and down completely randomly.

Pair Corralation between Delta Air and Cisco Systems

Assuming the 90 days trading horizon Delta Air Lines is expected to generate 2.29 times more return on investment than Cisco Systems. However, Delta Air is 2.29 times more volatile than Cisco Systems. It trades about 0.14 of its potential returns per unit of risk. Cisco Systems is currently generating about 0.2 per unit of risk. If you would invest  81,334  in Delta Air Lines on April 23, 2025 and sell it today you would earn a total of  23,235  from holding Delta Air Lines or generate 28.57% return on investment over 90 days.

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

Delta Air Lines  vs.  Cisco Systems

Delta Air Lines

Risk-Adjusted Performance

Good

Compared to the overall equity markets, risk-adjusted returns on investments in Delta Air Lines are ranked lower than 11 (%) of all global equities and portfolios over the last 90 days. In spite of fairly weak essential indicators, Delta Air showed solid returns over the last few months and may actually be approaching a breakup point.

Cisco Systems

Risk-Adjusted Performance

Solid

Compared to the overall equity markets, risk-adjusted returns on investments in Cisco Systems are ranked lower than 16 (%) of all global equities and portfolios over the last 90 days. In spite of fairly weak basic indicators, Cisco Systems showed solid returns over the last few months and may actually be approaching a breakup point.

Pair Trading with Delta Air and Cisco Systems

The main advantage of trading using opposite Delta Air and Cisco Systems positions is that it hedges away some unsystematic risk. Because of two separate transactions, even if Delta Air position performs unexpectedly, Cisco Systems 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 Cisco Systems will offset losses from the drop in Cisco Systems' long position.

The idea behind Delta Air Lines and Cisco Systems 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 Portfolio Optimization module to compute new portfolio that will generate highest expected return given your specified tolerance for risk.