PE ratio and Dividend Yield comparison for SingTel, StarHub and M1.

SingTel Chart

Head and Shoulders formation for SingTel stock chart, currently SingTel is testing the neckline at about $3.08 which is also a 78.6% Fibonacci Support Level. Breaking down this neckline with huge volume with confirm the pattern and may send SingTel to the price target of $2.83.
StarHub Chart

StarHub is currently testing the uptrend support at around $2.62 (also 50D MA support) to $2.65 (78.6% Fibonacci Support). Breaking these support levels indicate the end of up trend.
M1 Chart

M1 is trading at 5 years high. Although the chart still shows the uptrend but M1 is closing to the next 138.2% Fibonacci Resistance at about $2.413. Uptrend support is at about $2.274.
In summary
Upside potential (for capital gain) are limited for SingTel, StarHub and M1 base on PE ratio comparison and chart patterns. Dividend yields are still attractive at current stock price.