[quantumfusion]

I worked out my own figures based on historical data , and it seems ridiculous to me leh.
i am getting a negative beta for SPH , wrt STI index.

BETA = covar(p,m)/(sd(p) X sd(m))

since covar = corelat x Sd(p) x sd(m)

it seems that corelationship of SPH to sti index is negative ?

This site also says SPH beta is negative:

SPH (SES:T39) | financials, fundamentals and performance

If this is really true , then SPH is a very resilient stock to hold during economic crisis ?

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[mokky_123]

Necessities are all negative beta isn't it? Things that people must use irregardless of economy.

[quantumfusion]

but sph is part of the STI index. Weird haha

[mokky_123]

Yeah, most general indexes like STI are meant to hold +/- beta stocks in order to reduce variance~