AMT vs SPG: Valuation Comparison 2026
Side-by-side fundamentals for American Tower Corporation (AMT) and Simon Property Group, Inc. (SPG) — market cap, PE, PEG and sector. All figures from SEC filings and market data.
| Metric | AMT | SPG |
|---|---|---|
| Sector | Real Estate | Real Estate |
| Industry | REIT - Specialty | REIT - Retail |
| Current Price | $184.47 | $215.23 |
| Market Cap | $85.94B | $69.80B |
| PE Ratio | 29.80 | 15.00 |
| PEG Ratio | 4.13 | 0.53 |
| PEG Verdict | Potentially Overvalued | Potentially Undervalued |