I think 55 is primarily for NYSE member firms (not 100% sure). And Missouri.
Seven is required for all traders (by us and most major firms), and some states require a Series 63.
The following states require additional examinations:
Series 63 in Massachusetts, Michigan, Missouri, Nebraska, Nevada, Texas and Virginia; $82 fee.
Series 55 in Missouri; $80 fee.
State Registration fee â This only applies to traders in the following States:
Colorado - $8
Massachusetts - $75
Maryland - $35
Michigan - $65
Missouri - $50
Nebraska - $40
Nevada - $110
New Jersey - $30
Tennessee - $50
Texas - $235
Utah - $50
Virginia - $30
Don