RocketFuel shares are crashing Friday on signs of dwindling sales. In its first-quarter report, the online ad platform recorded $75 million in revenue, around $2 million short of consensus. Current-quarter guidance between $88 million and $92 million fell below analysts' estimates of $102 million. Compounding negativity surrounding the stock, analysts are growing bearish. Analysts at Goldman Sachs and BMO Capital downgraded the stock, while Citigroup slashed its price target.