$BIRB has something going on: price is up 1.5%, while OI is up 4.35% over the past hour and 2.05% over 15 minutes. The anomaly percentile is 99%, ranking second across the entire pool. This looks like new leveraged longs entering, not shorts covering. But the active trade delta is -2.1% and the buy/sell ratio is 0.96, so longs chasing the move aren't as aggressive as you'd think. Volume has expanded to 1.87x, but direction is a bit uncertain. With this kind of setup, either the short squeeze continues, or the longs are just hyping themselves up. I'm watching to see whether OI keeps flowing in—if it stalls, we need to be careful.