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Compare · AMT vs CIO

AMT vs CIO

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

Summary

  • Both AMT and CIO operate in Real Estate Investment Trusts (Real Estate), so they compete in similar markets.
  • AMT is the larger of the two at $84.90B, about 112.4x CIO ($755.2M).
  • Over the past year, AMT is down 14.6% and CIO is up 41.0% - CIO leads by 55.7 points.
  • AMT has hit the wire 16 times in the past 4 weeks while CIO has been quiet.
  • AMT has more recent analyst coverage (25 ratings vs 4 for CIO).
PerformanceAMT-4.85%CIO+41.03%
2025-10-24+0.00%2026-06-03
MetricAMTCIO
Company
American Tower Corporation (REIT)
City Office REIT Inc.
Price
$182.24-1.80%
$7.00+0.00%
Market cap
$84.90B
$755.2M
1M return
+0.73%
+0.65%
1Y return
-14.63%
+41.03%
Industry
Real Estate Investment Trusts
Real Estate Investment Trusts
Exchange
NYSE
NYSE
IPO
2014
News (4w)
16
0
Recent ratings
25
4
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.

CIO

City Office REIT Inc.

City Office REIT, Inc. (NYSE: CIO) invests in high-quality office properties in 18-hour cities with strong economic fundamentals, primarily in the Southern and Western United States. At September 30, 2020, CIO owned office complexes comprising 5.8 million square feet of net rentable area (“NRA”).

Latest AMT

Latest CIO