Just working from a subset of SKCs list (all from recent highs)...
XRO -32%
REA -13.6%
TPM -11.7%
FLN -29%
IPP -33%
What exactly do you consider a significant fall then? All these stock's were on "stupid valuations" as are most in the sector and have been for some time as partially evidenced by their steep falls. I call it a stampede, call it what you like.
Maybe a totally different perspective and timeframe but I would call it opportunity. I hold IPP and picked up a small parcel of ICQ today...