6 months have gone since our last update, and its time again to update the long term charts of the Thai stock market.
The first chart is the SET index between 1975 and January 2013. Following other indices around the world, and despite my overvaluation view 6 months ago, the Thai stock market has continued its (unstoppable) rise in the last 6 months, and now stands at about 1440, a rise of about 40% since I started to become cautious.
The PER is now around 18, mainly due to the stock market improvement. At 15, I started to be bearish, so at 18 it's extremely unusual for the Thai stock market. So either earnings have to go up substantially, either the stock market has to plunge, or a combination of the two.
The price to book value slowly crept up to 2.4 which also starts to make Thai stocks overvalued, especially compared to what you get in other markets around the world. (European stocks have a P/B ratio around 1 now)
To conclude, I believe the Thai stock market is relatively overvalued both historically, and compared to other stocks markets around the world. The dividend yield is now around 3% which is is that more than can get in a fixed deposit (Bangkok Bank now offers up to 2.65 % p.a for a 36 months fixed deposit), so why take the risk? There is also a lot of optimism around the world, which IMHO is not warranted, so I would not be surprised to see a massive correction in the Thai stock market within the next year.
The next update will be in 6 months (July 2013).