https://backpack.tf/item/10409302872

Bulk:

https://backpack.tf/profiles/76561198148511293#!/compare/1700092800/1700179200

https://backpack.tf/profiles/76561198198816727#!/compare/1700092800/1700179200

https://backpack.tf/item/10363433622

40 keys:

https://backpack.tf/profiles/76561198125791160#!/compare/1702425600/1702684800

https://backpack.tf/profiles/76561198074090034#!/compare/1702598400/1702684800

https://backpack.tf/item/10355823980

Untrace:

https://backpack.tf/profiles/76561198850121720#!/compare/1701302400/1701388800

https://backpack.tf/profiles/76561198928432459#!/compare/1700697600/1701475200

https://backpack.tf/item/10638980372

41 keys:

https://backpack.tf/profiles/76561197963562718#!/compare/1702339200/1702944000

https://backpack.tf/profiles/76561198146572037#!/compare/1702252800/1702339200

Skipping all the tradebacks to and from ZaGii since it's a gambling bot

Bulk:

https://backpack.tf/profiles/76561198096044051#!/compare/1704412800/1704499200

https://backpack.tf/profiles/76561198374557659#!/compare/1704412800/1704499200

Dumped to STN for ~36 keys:

https://backpack.tf/profiles/76561198374557659#!/compare/1704672000/1704758400

https://backpack.tf/profiles/76561199564942025#!/compare/1704758400/1704844800

Untrace:

https://backpack.tf/profiles/76561199564942025#!/compare/1706400000/1706486400

https://backpack.tf/profiles/76561198305866395#!/compare/1706313600/1706400000

https://marketplace.tf/items/tf2/31200;5;u179

https://backpack.tf/item/11455352271

December 25: $84.99/1.674=50.77 ~51 keys

December 26: $84.99/1.676=50.71 ~51 keys

key prices

25/12: (1.67+1.67+1.64+1.64+1.72+1.7+1.68)/7=1.674

26/13: (1.67+1.64+1.64+1.72+1.7+1.68+1.68)/7=1.676

Sales at 36, 40, 41, 51, 51. Taking 40-51 keys since 36 was a dump