Quote from heech:
It's possible, but as I said, I believe you have to file and pay UBIT (as I hope you're doing).
Within your IRA, UBIT is unnecessary. All income builds up tax free - there is no requirement of filing anything.
And leverage is allowed in the exact same way as with a regular taxed broker. The only requirement, is to set it up through a trust company, which is quite simple to do.
The only thing that matters, is you have to take out income at certain points in the future. Then, you must pay income tax on what comes out of standard IRAs, and nothing needs to be paid on Roth IRAs.