STI Seasonality with R - August Month Weakness

Refer to my earlier article on using R and STI:

https://mystockmarketstories.blogspot.com/2020/04/sti-seasonality-with-r-want-to-know.html

First we run SIT script with twenty years of historical STI data

STI August Seasonality

Referring to the table , the average 20 year return for STI over the past twenty years was -2.5%, the worst month for the year. For the past 13 years, August month had negative returns.

25% top/bottom percentile return for STI return

SIT can generate the 25% top/bottom percentile return for STI for investors to view the realistic range of the drop.

Next we can run the following seasonality script on the STI component stocks to check which stocks underperformed/outperformed.

Table showed number of years over the past 8 years returns were positive

Seasonality of STI component stocks with 8 years historical data

Monthly returns for each stock

Banks, SingTel with highest weightage in STI performed poorly, while tech like venture and REITs performed better.

Next SIT can be used to study the individual performance of each stock.

For example, DBS, among the worst performer

25% top/bottom returns for DBS

For example, Venture, among the better performers

25% top/bottom returns for Venture