the odds that you buy a support level, then get to hold it as it goes higher in
a long term sense are never good. its just not how things work. not now, not
ever.

also, if you ask someone where to enter, you might as well ask them where to
exit. and if you ask them both those things, give them your money.

pull up a 10 year weekly chart for yourself. identify levels where price stopped
falling and went higher. pay attention to gaps as those were moments of extreme
emotion and changing of the mind.

then allow yourself to determine the levels you deem good for an investment. i
trade from charts, but for an investment, i do believe your entry price should
be based on more than just a chart.

more work is needed.

From a purely technical point of view on VALE (VALE), I would be bullish on a
breakout above $24 and bearish if the current test of the lows drops the price
below $16. The downside risk shows support near $12 a share.

The broad based commodity miners could be poised for pullbacks, I like sector
specific plays because some of these commodities are overvalued and some are
still poised for upside.