Deductions & credits

I currently list my profession as an investor. Not a trader, do not currently claim Trader Tax Status.

Gains and losses on Schedule D. This is my primary income.

I have not written off expenses on Schedule C because I fear (a) it looks weird (b) I will incur social security tax.

 

You think it is OK to list gains on Schedule D and write off business expenses on Schedule C? Or will this catch the eye of IRS and potentially put me on hook for self employment tax?

 

Please note I take standard deduction.