Correlation Between East West and Western Alliance

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

By analyzing existing cross correlation between East West Bancorp and Western Alliance Bancorporation, you can compare the effects of market volatilities on East West and Western Alliance 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 East West with a short position of Western Alliance. Check out your portfolio center. Please also check ongoing floating volatility patterns of East West and Western Alliance.

Diversification Opportunities for East West and Western Alliance

0.93

Correlation Coefficient

East West  Western Alliance

Almost no diversification

The 3 months correlation between East and Western is 0.93. Overlapping area represents the amount of risk that can be diversified away by holding East West Bancorp and Western Alliance Bancorp. in the same portfolio, assuming nothing else is changed. The correlation between historical prices or returns on Western Alliance Ban and East West 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 East West Bancorp are associated (or correlated) with Western Alliance. Values of the correlation coefficient range from -1 to +1, where. The correlation of zero (0) is possible when the price movement of Western Alliance Ban has no effect on the direction of East West i.e., East West and Western Alliance go up and down completely randomly.

Pair Corralation between East West and Western Alliance

Given the investment horizon of 90 days East West Bancorp is expected to generate 0.81 times more return on investment than Western Alliance. However, East West Bancorp is 1.24 times less risky than Western Alliance. It trades about 0.13 of its potential returns per unit of risk. Western Alliance Bancorporation is currently generating about 0.09 per unit of risk. If you would invest  8,687  in East West Bancorp on May 7, 2025 and sell it today you would earn a total of  1,239  from holding East West Bancorp or generate 14.26% return on investment over 90 days.

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

East West Bancorp  vs.  Western Alliance Bancorp.

East West Bancorp

Risk-Adjusted Performance

Fair

Compared to the overall equity markets, risk-adjusted returns on investments in East West Bancorp are ranked lower than 10 (%) of all global equities and portfolios over the last 90 days. In spite of rather uncertain fundamental drivers, East West exhibited solid returns over the last few months and may actually be approaching a breakup point.

Western Alliance Ban

Risk-Adjusted Performance

Mild

Compared to the overall equity markets, risk-adjusted returns on investments in Western Alliance Bancorporation are ranked lower than 6 (%) of all global equities and portfolios over the last 90 days. Despite quite unfluctuating basic indicators, Western Alliance may actually be approaching a critical reversion point that can send shares even higher in September 2025.

Pair Trading with East West and Western Alliance

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

The idea behind East West Bancorp and Western Alliance Bancorporation 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 Efficient Frontier module to plot and analyze your portfolio and positions against risk-return landscape of the market..