are these transactions presented separately in the 1099-B as 'regulated futures contracts' / Section 1256 Option Contracts etc... if so it's possible they should be reported on Form 6781 rather than Schedule D/Form 8949; in TT go to Wages & Income / I'll Choose What I work On / Investment Income - Contracts and Straddles and also check the IRS instructions for Form 6781. Not a CPA and I've only had limited experience in this form but wanted to point you in this direction; I had a few SPY spreads last year which E*Trade reported as Section 1256.
