I'm not a short term trader, I'm interested in long term investing. From my standpoint I can say that Index investing (ETF) Wasn't successful during whole 2015. The major US ETF - SPY faced strong resistance line which wasn't broken trough whole the year.
Only NASDAQ has managed to show positive return on investment in 2015 (about 5%). The biggest damage have been carried out by the companies of "traditional" economy which compose DJIA.
Such stock market condition can be interpreted as the result of weak world economic growth. According to the recent Global Economic Prospects of World Bank emerging market economies have been an engine of global growth during the 2000 and especially in the period of Great recession, but since 2010 growth rates in several developing countries have been declining. In 2015 financial markets had to adapt to the moderate rates of economic growth. This transitional period has reflected especially on commodities markets and shrinking stock capital. In such condition investors became risk seeking and throw their money in newly created tech companies. From that point of you the best option for index investing is NASDAQ.
Also while tracking internet mood and investors predictions trough financial news aggregators like CityFALCON, I can say that the US stock market of high-tech companies is the most promising one! Here is
my watchlist on major world indices.
Good investing and trading!