AMT vs SPG
American Tower Corp /Ma/ (AMT) and Simon Property Group Inc. (SPG) are both filed with the SEC under Real Estate Investment Trusts. AMT is 1.2× SPG's size by market cap ($81.1B against $70.1B); AMT trades at the higher fiscal-year P/E (32.3× against 15.2×); SPG reports the higher net margin (84.3% against 24.7%); SPG grew sales faster over three years (+6.3% against +3.3%); and over the past year SPG returned +24.0% against AMT's -9.6%.
| AMT | SPG | |
|---|---|---|
| Last close | $176.23 | $214.56 |
| Market cap | $81.1B | $70.1B |
| P/E (FY) | 32.3× | 15.2× |
| P/S | 7.6× | 11.0× |
| EV/EBITDA | 17.0× | 21.2× |
| Operating margin | 45.5% | 49.9% |
| Net margin | 24.7% | 84.3% |
| Return on equity | 74.7% | 131.6% |
| Sales growth (3y) | +3.3% | +6.3% |
| EPS growth (3y) | +12.2% | +29.5% |
| Dividend yield | 3.9% | — |
| 1-year return | -9.6% | +24.0% |
Screener snapshot — prices as of 2026-08-28. Each side's last close is the most recent session the snapshot holds for that company, which can be an earlier one, and its 1-year return is measured to that close. Market caps struck on 2026-08-27. Last close, market cap and the 1-year return are price figures; every other row is computed over the company's latest filed fiscal year — FY2025 (ended 2025-12-31) for both. A return on equity past ±100% — SPG at 131.6% — divides earnings by an average filed equity base smaller in magnitude than the earnings themselves; the two columns are not on one scale. — not published for this company. A ratio goes unpublished for more than one reason: a component the calculation needs is not on file, the filing does not tag the line it is read from, or the calculation is not defined on the filed basis — EV/EBITDA is not printed on non-positive EBITDA, and return on equity is not computed on a zero or negative equity base.
Who holds them, and who has traded them
| AMT | SPG | |
|---|---|---|
| Institutional holders (13F) | 1,739 | 1,296 |
| Insider buyers − sellers (180d) | -2 | +5 |
| Congressional trades disclosed (180d) | 3 | 2 |
| Executive-branch officials on file — trades disclosed (180d) | 8 | 1 |
Counts only. The congressional figures count transactions dated in the trailing 180 days and disclosed in STOCK Act periodic transaction reports; amounts are filed as ranges and are never summed. The executive-branch figures count the same window of transactions, and they are scoped to one roster. The officials OGE posts for direct download. Insider buyers − sellers counts distinct people filing open-market Form 4 purchases minus distinct people filing open-market sales over the trailing 180 days, capped at ±5.
AMT vs SPG: common questions
- Is AMT bigger than SPG?
- AMT carries the larger market cap — $81.1B against $70.1B, both struck on 2026-08-27.
- Which trades at a higher P/E, AMT or SPG?
- AMT, at a fiscal-year 32.3× against 15.2× for SPG. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
- How have AMT and SPG performed over the past year?
- SPG returned +24.0% and AMT -9.6%, measured on the trailing calendar year to the last close.
- How many institutions hold AMT and SPG?
- 1,739 13F filers report a position in AMT and 1,296 in SPG, on the latest quarter in the panel.
- Are AMT and SPG in the same industry?
- Both are filed with the SEC under Real Estate Investment Trusts, which is the classification this pairing is built on.
AMT overview → · SPG overview → · AMT institutional ownership → · SPG institutional ownership → · Congress and AMT → · Congress and SPG → · Executive branch and AMT → · Executive branch and SPG →
More in Real Estate Investment Trusts: AMT vs DLR · AMT vs EQIX · AMT vs IRM · AMT vs PLD
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Source: SPZCO — https://spzco.com/vs/amt-vs-spg