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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 $90.44B, about 1.3x SPG ($68.20B).
  • Over the past year, AMT is down 10.9% and SPG is up 28.9% - SPG leads by 39.7 points.
  • AMT has been more active in the news (18 items in the past 4 weeks vs 1 for SPG).
  • Both have 25 recent analyst ratings on file.
PerformanceAMT-10.86%SPG+28.86%
2025-06-09+0.00%2026-06-08
MetricAMTSPG
Company
American Tower Corporation (REIT)
Simon Property Group Inc.
Price
$189.73-2.17%
$206.72-1.72%
Market cap
$90.44B
$68.20B
1M return
+5.61%
+2.54%
1Y return
-10.86%
+28.86%
Industry
Real Estate Investment Trusts
Real Estate Investment Trusts
Exchange
NYSE
NYSE
IPO
News (4w)
18
1
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