I'm relatively new to the domain trade myself. My estimates:
Forexbrokeage.com - mid $xxx to a reseller / low to mid $xxxx to an end-user. Perhaps more.
Forexmarket.guide - high $xx to a reseller / high $xxx to low $xxxx to an end-user.
Forextrade.guide - mid $xx to a reseller / mid to high $xxx to an end-user
Some market history for Forexbrokeage.com is available at Namebio
great two word domain but unfortunately the extension is not the greatest. I would hold it for later. Hope .Guide extension gets more recognition. I would say now it's worth about high XX IMO.