Rio Tinto ( RIO) produces raw materials including copper, iron ore, bauxite, diamonds, uranium and industrial minerals. I included RIO in my BOOSTER "portfolio." Prices have traded higher since early January, but recently pulled back below the 200-day moving average line. The company has an alumina joint venture with Rusal (HK:486) in Queensland. On Thursday it was reported RIO was dropping its connection to Russian businesses. 
Let's check out the charts again.
In this daily bar chart of RIO, below, we can see that prices gapped down below the 200-day and the 50-day averages. RIO is an ADR with headquarters in London and Australia so gaps are fairly common because of time differences. Trading volume has been more active since late December and the On-Balance-Volume (OBV) line has gone up from early December telling us that buyers have been more aggressive than sellers. The Moving Average Convergence Divergence (MACD) oscillator is above the zero-line, but it has been in a decline since the middle of January.
In this weekly Japanese candlestick chart of RIO, below, we see some upper and some lower shadows to make the analysis confusing. Trading volume has been increasing since August and that is positive but RIO could finish the week below the 40-week line. The weekly OBV line and the MACD oscillator are bullish, but that could change. We will need to keep a closer eye on developments.
In this daily Point and Figure chart of RIO, below, we can see a price target of $93 but a trade at $69 could weaken the picture.
Bottom line strategy: If you went long RIO in early January when I presented the BOOSTER portfolio, I would continue to hold but risking a close below $69.
