The biopharmaceutical sector has been on a roller coaster recently. Baiji Pharmaceutical -B just went public not long ago and then took a nosedive. Just when you thought about bottom-fishing, you got to see how fierce the "liquidity" of Hong Kong stocks can be. Xinwei Medical -B was still going strong last month, but these days it's been taught a lesson, with a -17% drop that makes no sense. WuXi AppTec selling its business to Hillhouse, is it self-preservation or lightening the load? YAOJIE ANKANG -B wasn't spared either, as if the entire biotech sector is emotionally draining. CSPC Pharmaceutical is relatively stable, but there's no smoke without fire. Those holding positions can only tough it out, while those who missed the boat can't bring themselves to chase. Keep holding on, after all, this round of ups and downs in the pharmaceutical sector is really testing one's nerves.