via INO.com - Feb 2016/June 2021 Spread
One positive development is the continued narrowing of the spread between near futures and long dated futures as gold prices advance towards backwardation. This spread had been on sleep mode for months until this week:
http://quotes.ino.com/charting/index.html?s=NYMEX_GC.G16_M21.E&v=d12&t=l&a=0&w=1
-F6