Rule - If the item is over 1 Key, round to the nearest .05 Keys
There is a .41 key gap between 10.37 and 10.78, very large gap in this range, considering that as an outlier.
so we just disregarding buy orders and only saying an outlier for 0.4 on the high end lol
Providing marketplace or SCM sales is unnecessary if Gladiator sales are available, as these usually tend to be much higher than standard key sales, which of course is the case here.
I don't think the 7.4 Keys sale is an outlier, and your SCM proof does seem to support that idea. This can simply be resuggested at the fixed range of 7.4-9.3.
This needs a correction
Smiss 13
https://gladiator.tf/sales?item=Strange%20Festive%20Sapper&at=2026-05-07T12:34:21.537Z
Sales
9 keys 15 ref @ 4/4/2026, 02:52 AM
Buys
8 keys 20.88 ref @ 5/1/2026, 08:00 AM
8 keys 15.11 ref @ 4/28/2026, 11:12 AM
7 keys 40.55 ref @ 4/23/2026, 12:04 AM
8 keys 36.66 ref @ 4/21/2026, 01:04 AM
MP.TF
https://marketplace.tf/items/tf2/1080;11
https://marketplace.tf/items/tf2/5021;6
5/7 x2 20.00/1.99=10.05
5/6 20.00/1.99=10.05
5/5 20.00/2.00=10.00
5/1 20.00/2.00=10.00
4/25 20.00/2.00=10.00
4/15 17.00/2.00=8.50
4/14 17.00/1.95=8.72
4/13 17.00/1.96=8.67
4/10 17.00/1.98=8.59
4/9 17.00/1.97=8.63
SCM
https://steamcommunity.com/market/listings/440/Strange%20Festive%20Sapper
https://steamcommunity.com/market/listings/440/Mann%20Co.%20Supply%20Crate%20Key
5/8 20.40/2.40=8.50
5/8 20.36/2.40=8.48
5/7 18.47/2.46=7.51
5/7 20.38/2.46=8.28
5/6 18.50/2.44=7.58
5/5 19.90/2.49=7.99
5/5 18.49/2.49=7.43
5/5 18.45/2.49=7.41
5/2 20.64/2.40=8.60
5/1 18.97/2.44=7.77
4/29 19.89/2.50=7.95
4/29 20.67/2.50=8.27
4/26 20.67/2.52=8.20
4/24 26.72/2.58=10.37
4/23 25.00/2.51=9.96
4/21 27.49/2.55=10.78
4/19 23.00/2.52=9.13
4/18 24.50/2.56=9.57
4/13 24.15/2.50=9.66
4/13 21.57/2.50=8.63
4/11 24.16/2.47=9.78
4/11 19.06/2.47=7.72
4/11 23.54/2.47=9.53
Rule - If the item is over 1 Key, round to the nearest .05 Keys
There is a .41 key gap between 10.37 and 10.78, very large gap in this range, considering that as an outlier.
so we just disregarding buy orders and only saying an outlier for 0.4 on the high end lol
Providing marketplace or SCM sales is unnecessary if Gladiator sales are available, as these usually tend to be much higher than standard key sales, which of course is the case here.
I don't think the 7.4 Keys sale is an outlier, and your SCM proof does seem to support that idea. This can simply be resuggested at the fixed range of 7.4-9.3.