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Compare · AMT vs SPG

AMT vs SPG

Side-by-side comparison of American Tower Corporation (REIT) (AMT) and Simon Property Group Inc. (SPG): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both AMT and SPG operate in Real Estate Investment Trusts (Real Estate), so they compete in similar markets.
  • AMT is the larger of the two at $83.10B, about 1.3x SPG ($65.00B).
  • Over the past year, AMT is down 18.9% and SPG is up 29.5% - SPG leads by 48.4 points.
  • AMT has been more active in the news (8 items in the past 4 weeks vs 2 for SPG).
  • Both have 25 recent analyst ratings on file.
PerformanceAMT-18.88%SPG+29.52%
2025-04-30+0.00%2026-04-30
MetricAMTSPG
Company
American Tower Corporation (REIT)
Simon Property Group Inc.
Price
$182.78+2.56%
$203.90+1.91%
Market cap
$83.10B
$65.00B
1M return
+5.89%
+9.31%
1Y return
-18.88%
+29.52%
Industry
Real Estate Investment Trusts
Real Estate Investment Trusts
Exchange
NYSE
NYSE
IPO
News (4w)
8
2
Recent ratings
25
25
AMT

American Tower Corporation (REIT)

American Tower, one of the largest global REITs, is a leading independent owner, operator and developer of multitenant communications real estate with a portfolio of approximately 181,000 communications sites.

SPG

Simon Property Group Inc.

Simon is a real estate investment trust engaged in the ownership of premier shopping, dining, entertainment and mixed-use destinations and an S&P 100 company (Simon Property Group, NYSE: SPG). Our properties across North America, Europe and Asia provide community gathering places for millions of people every day and generate billions in annual sales.