Currently I do all my trading tax free from my HSA so I couldn't tell you. :-)
My HSA is for medical cost only, but if I have a few million dollars sitting there I will never have to pay medical costs again. This is very good since I have 5 children.
Here is the info. You can also punch up "US Federal Tax Rate" on a Google search.
Married Filing Separately
Taxable Income
Tax Rate
$75,951—$115,725 $14,758.75 plus 28% of the amount over $75,950 $115,726—$206,675 $25,895.75 plus 33% of the amount over $115,725 $206,676—$233,475 $55,909.25 plus 35% of the amount over $206,675 $233,476 or more $65,289.25 plus 39.6% of the amount over $233,475