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A 62-Year-Old Wants In on SpaceX’s 37% Pop. Holding It in a Roth vs. a Brokerage Account Changes Everything at Tax Time.
Key takeaways
- It in a Roth vs. a Brokerage Account Changes Everything at Tax Time.
- Selling Space X in a taxable brokerage account can trigger the tax torpedo, pushing up to 85% of Social Security benefits into taxation.
- Roth IRA withdrawals don t count toward provisional income or IRMAA, shielding both Social Security benefits and Medicare premiums from a large stock gain s tax impact.
A 62-Year-Old Wants In on Space X’s 37% Pop. Holding. It in a Roth vs. a Brokerage Account Changes Everything at Tax Time. Gerelyn Terzo Mon, June 22, 2026 at 5:02 PM GMT+7 5 min read SPCX Quick Read SPCX surged 37% from its $135 IPO price in five trading days, briefly hitting a near-$3 trillion valuation before retreating to around $185.
Selling Space X in a taxable brokerage account can trigger the tax torpedo, pushing up to 85% of Social Security benefits into taxation.
Roth IRA withdrawals don t count toward provisional income or IRMAA, shielding both Social Security benefits and Medicare premiums from a large stock gain s tax impact.
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