(Reuters) – Cynk Technology shares have been halted by the Financial Industry Regulation Authority on Friday, under the “Extraordinary Event Halt” code. Cynk, a development-stage company that “intends to develop a social network business,” has seen its shares surge 24,000 percent in the last month. On Finra’s website, it was indicated that the shares were halted under a category labeled “U3-Extraordinary Event Halt. …