Last day on Flippa.com - currently it's at only 11$:
https://flippa.com/6822102-it-pn
2-letters can reach very high prices! Here some of the latest 2-letter sales according to DNJournal.com :
LA.com - 1.200.000 USD - GoDaddy
TP.com - 929.000 USD - NameJet
YM.xyz - 39.424 USD - West.cn
R4.co - 12.000 USD - Sedo
MK.cc - 11.300 USD - Sedo
VS.vc - 10.000 USD - Sedo
AN.cc - 10.000 USD - Sedo