Should the global economy suffer a period of slower demand, which is a distinct possibility given rising interest rates, a slowing housing market and high debt, then the demand profile on the metals could suffer. In turn, these lofty metal prices would then look out of place.
On the surface, the base metals look strong, but there is a danger the rug could get pulled from underneath the market.
Overall the sentiment in the metals is still very bullish and it is hard to see this changing in the near term.
The metals are looking nervous, the sell-offs are providing the dip-buyers with good opportunities but for a change the follow-on buying seems to be reluctant to join in.
This is no doubt a bullish factor. Copper, lead and zinc are the three metals that are suffering supply disruption from strike action.