It was hardly a dog of an investment for the stock market that day.Highly specialized tech stock Datadog (DDOG 4.49%) received quite a treat from stock market investors on Monday, as they collectively sent the company's shares up by well over 4%. It was clear they took an analyst's bullish update on the stock to heart, since that increase trounced the S&P 500 index's 0.3% rise. A generous price target liftThat prognosticator was BMO Capital's Keith Bachman, who published a new take on Datadog before market ...