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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 $82.02B, about 1.2x SPG ($68.53B).
  • Over the past year, AMT is down 19.1% and SPG is up 34.4% - SPG leads by 53.5 points.
  • AMT has been more active in the news (9 items in the past 4 weeks vs 3 for SPG).
  • Both have 25 recent analyst ratings on file.
PerformanceAMT-19.06%SPG+34.45%
2025-06-20+0.00%2026-06-18
MetricAMTSPG
Company
American Tower Corporation (REIT)
Simon Property Group Inc.
Price
$175.95-2.88%
$211.44+0.75%
Market cap
$82.02B
$68.53B
1M return
-3.82%
+5.24%
1Y return
-19.06%
+34.45%
Industry
Real Estate Investment Trusts
Real Estate Investment Trusts
Exchange
NYSE
NYSE
IPO
News (4w)
9
3
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.

Latest AMT

Latest SPG