HUI is either dropping to fill a gap (not a bad thing) today or testing short term moving averages for support.
What Has Been
A solid 2.5 years of risk management (to varying degrees) has been required of precious metals investors. It was most intensely required after the announcement of QE3, when the net commercial short position in silver began a relentless march toward a very bearish alignment in late 2012 and then the HUI Gold Bugs index lost an important support level at around 460. Here is the chart of silver with a heavy commercial net short position from NFTRH 215, dated 12.2.12: