SPG ▼ -3.1% - Simon Property Group, Inc. $SPG - Simon Property Group Sells $800 Million of Senior Notes Simon Property Group sold $800 million in senior notes, a debt offering that pressured the stock down 3.1% today. The sale of additional debt can concern investors as it increases the company's leverage and may signal either financing needs or a shift in capital allocation priorities. 09-SEP-2026 05:34 PM ET