$UST10Y 10-Year US Treasury Yield $TNX 10 Year Treasury Note Yield what's the difference? <img src=http://stockcharts.com/c-sc/sc?s=$UST10Y&p=W&yr=5&mn=0&dy=0&i=p65659036808&r=4566> <img src=http://stockcharts.com/c-sc/sc?s=$TNX&p=W&yr=5&mn=0&dy=0&i=p65659036808&r=4566> <img src=http://stockcharts.com/c-sc/sc?s=$TNX:$UST10Y&p=W&yr=5&mn=0&dy=0&i=p65659036808&r=4566> New 10Y Treasury ETF <img src=http://stockcharts.com/c-sc/sc?s=GKD&p=W&yr=5&mn=0&dy=0&i=p65659036808&r=4566>