By Ritvik Carvalho and Julien Ponthus
LONDON (Reuters) - For investors trying to call the end of the bull run for stocks, the headline performance of the world's equity markets this year may not be telling the whole story.
Wall Street's S&P 500 is up 2.5 percent continuing its longest bull run in history while the MSCI All-Country World Index, a widely watched gauge of world stock market health, has lost just 5 percent despite fears of a global trade war and a slowdown in China's growth.
But according to data analysed by Reuters, the proportion of stocks, regions and sectors that are technically in a bear market has shot up since the start of January, prompting some analysts to conclude the bull run may already be over.
At the start of the year, 9.3 percent of the individual constituents of the S&P 500 index were in a so-called bear market - defined as stocks that have fallen at least 20 percent from their 12-month peak.
By Oct. 22, the percentage had climbed to 34.1 and more than 70 percent of the stocks were in correction territory, defined as a fall of at least 10 percent.
The return of the bears is even more pronounced outside the United States. According to Bank of America Merrill Lynch, 58 percent of the 2,767 stocks in MSCI's global index are now in bear market territory.
In Europe, the STOXX 600 has fallen a limited 9 percent this year, but the percentage of bear market constituents in the index has jumped to 46.2 from 10.2 at the start of 2018.
For a full interactive graphic illustrating this, click here https://tmsnrt.rs/2NZdzgj
The concern among some analysts is that the surge in securities hitting the 20 percent loss mark could lead to a tipping point and falls of a similar magnitude in overall indexes - which typically leads to a long-term downward trend.
"It's really an indication that a global bear market has probably already started," said Albert Edwards, global strategist at Societe Generale.
He said other technical indicators, such as the breadth of the market - the divergence between individual performances within an index - pointed to the same conclusion.
Such rules of thumb about bear markets are by no means foolproof but they are closely monitored by money managers and investors for whom calling market turns correctly is paramount.
Still, Edwards has a reputation for being a so-called permabear due to his often pessimistic views and other analysts caution that the increase in bear market constituents could be read in two ways.
Either the creeping bear forces a further investor capitulation and long-term funk, or it slowly releases air from what many assumed were bubble-like valuations and eases the pressure to cut and run.
Analysts who side with the second view say the bull market won't run out of steam until the U.S. economy slips into recession.
Many influential investment houses such as Goldman Sachs continue to take the view that tax cuts under the administration of U.S. President Donald Trump and the U.S. economy's momentum will propel markets further.
"Economic expansion and the long-bull market in equities should continue in 2019," the investment bank wrote last week, pointing to rising U.S. corporate sales and profits.
ROTTING FROM THE TAIL
For the pessimists, the flurry of mini bear markets within catch-all stock market indexes - even among those still showing positive returns this year - is becoming hard to ignore.
Other indexes that have seen a marked rise in bear market constituents include global emerging markets, Chinese shares and European autos and banks.
In the United States, the Nasdaq 100 - which is up 11 percent this year and whose tech shares have spearheaded the bull market for the past two years - has seen the percentage of its bear market constituents surge to 43.7 from 7.8 in January.
Some analysts say this suggests that while popular stocks can still thrive, a growing number of stocks are quietly collapsing in the background.
In Germany, the change of fortune has been particularly brutal for the blue-chip DAX. Only two of its 30 stocks were in bear market territory in January but now there are 18.
In Japan's Nikkei, which has only lost 3 percent in 2018, bear market stocks made up 48 percent of the index on Oct. 22, up from just 4.9 percent at the start of the year.
"They say fish rot from the head but in the market's case, it's rotting from the tail onwards," said Societe Generale's Edwards.
(Reporting by Julien Ponthus and Ritvik Carvalho; editing by David Clarke)
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Updated Date: Oct 25, 2018 00:05:52 IST