💰Mortgage bonds were originally relatively safe investments backed by the U.S. government, but modern versions became riskier and privately backed.
🔢CDOs are collaterized debt obligations that package different levels of mortgage bonds together, making them seem diversified and less risky than they actually are.
📉The mortgage bonds underlying CDOs often contained subprime loans with low credit scores and risky adjustable rates, greatly increasing the likelihood of default.
📈Rating agencies and banks gave AAA ratings to many CDOs without thoroughly assessing their underlying bonds, leading investors to believe they were safe investments.
💣The housing market collapse caused a widespread economic crisis, as the value of these CDOs plummeted and threatened the stability of the financial system.