Rio Tinto's longer-term chart is distinctly bearish, says Nathan Eisenberg at www.jnfcfds.com.
The miner's share price hasn't made a new high since early 2011. Also, a major "head-and-shoulders top" is in evidence, which would complete on a drop through 2850p. The share also made new relative lows last week. This is one to sell on rallies. Go short, placing a stop above the 150-day moving average. A substantial move lower should follow.