It's high time to move away from the old adage "Sell in May", because the market is on its way to double its year- to-date returns. Marketing axioms, rules of thumb may be comforting than investing logic but do not show the best path for investment. This concept though statistically proven to be nonsense does not discourage investors. Historical stock market data shows return from May through October might be more than the others on an average. Transaction costs, taxes on profits cannot be avoided by investors as trading volumes in summer months being consistently on the lower side. This leads to fewer trends and influence traders to get out as it is not worth to stay in the market. People believe that market loses from May to November with the worst in October, which is not the truth as research shows. Read more at: http://www.marketwatch.com/story/when-it-gets-to-may-you-might-as-well-stay-2015-05-16?page=1