Critical Alerts For Fitbit, MannKind, Celgene, Yahoo! and Zulily Released By InvestorsObserver

CHICAGO, July 22, 2015 /PRNewswire/ — InvestorsObserver issues critical PriceWatch Alerts for FIT, MNKD, CELG, YHOO and ZU. To see what our analysts have discovered about a particular stock, read the InvestorsObserver’s PriceWatch Alert by selecting the corresponding link. (Note: You may have to copy this link into your browser then press the [ENTER] key.) FIT:…