ASX edges higher as banks bounce back; Energy stocks lead gains

Summary

• The ASX climbed 0.4% and back above 6700 at Tuesday's open, even after Wall Street retreated from record highs. The major banks, BHP, and Rio Tinto each bounced back
• US markets fell overnight with earnings season looming, inflation fears mounting, and political turmoil in Washington also causing anxiety 
• Iron ore slipped 0.5% to $US172.13 a tonne, gold dropped 0.3% to $US1843.70 an ounce, Brent crude fell 0.6% to $US55.66 a barrel, and US oil was 0.1% down at  $US52.20 a barrel
• Bitcoin dropped as much as 22% to a low of $US30,200 overnight. The cryptocurrency was last at $US34,900