I put my self-directed IRA into TSLA after buying the car, but unfortunately there was only $24k in the account. On the plus side I bought it at $38/share. On the minus side, I sold almost half of my shares to re-coup my investment in TSLA (and then some) when the shares hit $94. I'm feeling silly for doing that now, but at least I still have a decent size position in TSLA which jumped over $9 in value today. I'm convinced it's going to keep rising leading up to the launch of GenIII (with a lot of volatility along the way) and will hold since there's potential for this stock to hit $300-$400 a share by then.