Biotech was one of the first sectors in the market to show relative strength and catch some bids throughout the June bottoming process.
IBB rallied 20% off the lows and then proceeded to consolidate sideways for 3 weeks. This Wednesday, IBB broke out of that consolidation with a gap up on heavy volume and is now finding more follow-through.
Keep an eye on the old Feb/Apr highs around 135 which seems like the next target in this uptrend.