Correlation Between ATT and Community

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

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

Diversification Opportunities for ATT and Community

-0.73

Correlation Coefficient

ATT  Community

Pay attention - limited upside

The 3 months correlation between ATT and Community is -0.73. Overlapping area represents the amount of risk that can be diversified away by holding ATT Inc and Community Health Systems in the same portfolio, assuming nothing else is changed. The correlation between historical prices or returns on Community Health Systems and ATT 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 ATT Inc are associated (or correlated) with Community. Values of the correlation coefficient range from -1 to +1, where. The correlation of zero (0) is possible when the price movement of Community Health Systems has no effect on the direction of ATT i.e., ATT and Community go up and down completely randomly.

Pair Corralation between ATT and Community

Taking into account the 90-day investment horizon ATT Inc is expected to generate 0.51 times more return on investment than Community. However, ATT Inc is 1.96 times less risky than Community. It trades about 0.25 of its potential returns per unit of risk. Community Health Systems is currently generating about -0.15 per unit of risk. If you would invest  2,232  in ATT Inc on December 30, 2024 and sell it today you would earn a total of  586.00  from holding ATT Inc or generate 26.25% return on investment over 90 days.

Time Period	3 Months [change]
Direction	Moves Against
Strength	Weak
Accuracy	67.74%
Values	Daily Returns

ATT Inc  vs.  Community Health Systems

ATT Inc

Risk-Adjusted Performance

Solid

Compared to the overall equity markets, risk-adjusted returns on investments in ATT Inc are ranked lower than 19 (%) of all global equities and portfolios over the last 90 days. In spite of comparatively weak basic indicators, ATT unveiled solid returns over the last few months and may actually be approaching a breakup point.

Community Health Systems

Risk-Adjusted Performance

Very Weak

Over the last 90 days Community Health Systems has generated negative risk-adjusted returns adding no value to investors with long positions. Despite conflicting performance in the last few months, the Bond's basic indicators remain somewhat strong which may send shares a bit higher in April 2025. The current disturbance may also be a sign of long term up-swing for Community Health Systems investors.

Pair Trading with ATT and Community

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

The idea behind ATT Inc and Community Health 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.

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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 Funds Screener module to find actively-traded funds from around the world traded on over 30 global exchanges.