Reporting regular day trading in S Corp

I am a day trader with an S corp set up solely for trading. I am wondering if I need to file a Schedule D and form 8949 to report gains and losses (both stock options and futures trading) or just may report it as income or loss on schedule 1120S and as ordinary business income in Schedule K-1 (not under capital gains and losses). The amount this year is a small gain (@ $550). I had a preparer do it last year without the Schedule D and a preparer this year who used the Schedule D. Thanks for whatever help you can offer.

Source:

http://www.asktaxguru.com/8267-reporting-regular-day-trading-in-s-corp.html