BlackRock Health Sciences (NYSE:BME) was a closed-end fund that had regularly enjoyed trading at premiums throughout most of the last decade. Over the last year, that began to change, and a discount started to open up. That includes our prior coverage, where the discount was pushing closer to 6%. Today, the discount has blown out even wider - to discount levels we haven't seen since the Global Financial Crisis. There has been some market volatility recently, as can be seen by the VIX, which is starting to show signs of life.