Bursting the Bubble Tulips were the first, but they won’t be the last. What forms a “bubble” and what causes them to burst? Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Investing with Your Heart For some, the social impact of investing is just as important as the return, perhaps more important. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Federal Income Tax Use this calculator to estimate your income tax liability along with average and marginal tax rates.