15 Minute ...support/resistance... stockcharts.com/c-sc/sc?s=GBTC&p=15&yr=0&mn=0&dy=5&i=p84864126684&a=586096731&r=1531076920513 60minute https://stockcharts.com/c-sc/sc?s=GBTC&p=60&b=5&g=0&i=p51272099087&r=1528745875501