keys seem pretty stable, bit of a price dip today so giving this a try.

Gladiator stats:

https://gladiator.tf/sales?item=Mann%20Co.%20Supply%20Crate%20Key

Screenshot:

https://imgur.com/a/2hiVCOU

Past 60 Minutes:

3 bought at 52.33

13 sold at 52.44

Range 52.33-52.44

Past 24 Hours:

10 bought at 52

1 bought at 52.22

4 bought at 52.33

6 bought at 52.44

4 bought at 52.55

20 sold at 52.33

52 sold at 52.44

5 sold at 52.55

Rang 52-52.55

Past 7 Days:

buy range of past 7 days is 52-52.66

sell range of past 7 days is 52.11-54

Past 7 day range obviously flucuates a lot but there is clearly a high volume of trades at around 52.33-52.55 ref

TF2 autobot discord:

https://discord.com/invite/D2GNnp7tv8

Recent Key updates/changes:

https://imgur.com/a/bjZemmH

shows changes from yesterday. previous changes were from march 20th, 2 updates that range 52.44-52.66

https://imgur.com/a/PKv3dZ1

Prices.tf item history for keys:

https://www.prices.tf/items/5021;6

Recent key trades, source tf2 autobot discord:

(Live trades tab, searched for mannco. supply crate key)

Showing 10 trades at 52.33-52.44. Taken from the past ~24 hours.

https://imgur.com/a/uaU35ad

The following are some more recent trades at a higher value, from ~24 hours or more ago, indicating the recent price dip.

https://imgur.com/a/CGcc8fw

Classifieds:

3 pages of buyers at 52.33

4 pages of sellers at 52.44

Scrap.tf:

https://scrap.tf/keys

buying at 52.44 / selling at 52.88

stntrading:

https://stntrading.eu/tf2/keys

buying at 52.33 / selling at 52.88

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Might be a bit early for a suggestion as the price just dipped today. But since this is at the very beginning of the dip, should be plenty of evidence to back up this range.

Going with 52.33-52.44 as it is supported with a large volume of recent trades, as well as buy/sell orders. This is my first price suggestion for keys so any suggestions or changes would be appreciated.