I think the manipulation this morning at Open was a test. They might walk away or they might push harder next time. Only Time will tell. I would think there are other pigs out there with more blood to drain, but CLF has a small market cap relative to its peers--which makes manipulation easier.
You can't predict manipulation. The fall from 35 to 29 is about 5% market movement and 95% manipulation--downgrade included. I'm looking forward to seeing the naked short/failure to deliver chart in a few weeks. There has obviously been naked activity in CLF recently.