Commodity indices have turned down after reaching recent tops, exacerbated by a stronger dollar, say analysts at Credit Suisse. Contributions to declining indices include a top in crude oil and metals including gold, copper and platinum. David Sneddon and his team have questioned if this move is merely a correction to the 2016-2018 bull market or a more worrying long-term decline. The Bloomberg Commodity Index has fallen from its year high of 188.92 to 169.84. Significant support exists at 162.26, the key low of 2017.