Good morning! It's a quiet morning for company news today. With the market set to open in about 20 minutes at 8 am, we're looking at the FTSE 100 forecast to open down about 18 points at 6,675, after a lacklustre session in the US last night. I was watching the financial channel, CNBC last night, and the hot topic everyone is discussing is whether shares are now overvalued, after such a good run? Opinions differ on this, and I can see the arguments both ways.

I always listen up when Warren Buffett speaks about anything, and he currently believes that share prices are not obviously overvalued, but "within a zone of reasonableness". In the more bearish camp is Carl Icahn, who wobbled markets recently by expressing concern over markets reaching record highs (although it's pointed out that he has been a perma-bear, and hence wrong, for many years).

A very interesting graphic that I stubled across, showing that the overall US market forward PER (my preferred valuation measure) has become more stretched recently is here, and is well worth a look. This chart shows that on valuation, the US market has now reached the same PER as at the peak in 2007. Although as you can also see from that chart, the reason markets fell in 2007-8 was primarily because earnings collapsed due to the major financial crisis & Recession, or at least share prices fell as the market anticipated the collapse in earnings which then occurred, and recovered as earnings recovered.

Another interesting graphic I found was this chart of US broker margin debt, which peaked at previous market tops. Allowing for inflation, this looks to me as if we're in the final stages of a bull market, so this confirms my view that we probably have some way to go upwards still before we have a correction.

I tend to Tweet any interesting titbits like the above that come my way during the day, so if you wish to follow me on Twitter (which is incredibly useful for investors, if you choose good people to follow) my Twitter handle is @paulypilot for anyone interested.

 

However, it all depends on what economies do overall. If you think we are at the beginning of a multi-year recovery in major economies, then higher PERs are perfectly justified, as…

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