holding for 2018:

$xrb - (raiblocks) biggest holding 

$phr - (phore)

$prl - ()

$lun - (lunyr)

$strat - (stratis)

$linx - (linx)

$edg - (edgeless)

$lbc - (library)

$xby - (xtrabytes)

$gnt - (golem)