Don't go away. Stay in May By: MarketWatch May 04, 2009 at 00:01 AM EDT Itâs hard to make the case for a sustained rally until all of the numbers are in, but seasonality charts suggest that May has a longstanding history of blossoming gains. Read More >> Related Stocks: Extended Market Index ETF Vanguard S&P Midcap 400 Growth Ishares ETF TECHNOLOGY TIPS Bond Ishares ETF Total Stock Market ETF Vanguard United States Oil Fund