The stock market keeps climbing, and investors have every reason to feel optimistic. The S&P 500 closed this week with a modest 0.2% gain on Friday, enough to extend its winning streak to nine consecutive weeks. Since the market bottomed on March 30, the benchmark index has surged 19.5%, adding roughly $11 trillion in market … History Says the S&P 500’s 9-Week Rally Is Rare. It May Be Even Rarer Than You Think