Historically speaking commodities have been a strong leading economic indicator. Fro lumber to steel and copper showing strength in construction and manufacturing of electronics. Now yet another piece of the puzzle presents itself.
The cobalt bubble. Used mostly for manufacture of Jet engines (Watch out BA), the cobalt bubble also imploded in beginning of 2018 along with lumber and a slew of other commodities.
While cobalt is not as widespread in use as its commodity counterparts, this is still compelling evidence to economic bubble we are in: dubbed the "everything bubble".
Watch for more bearish stock market movements as a result of this.
Short everything stocks. Especially tech and healthcare.