American Tower against Simon Property Group — live side-by-side technical comparison.
Prices as of 2026-10-16T20:00:03+00:00 UTC · updates daily
AMT leads 3 of the 5 windows we measure — over 1 month AMT is +5.0% and SPG +1.2%; over year to date AMT is +5.5% and SPG +11.0%. The AMT/SPG price ratio stands at 0.9018, above its 50-day average of 0.8302, and above the 200-day average of 0.8687. A ratio above its own average means AMT is gaining on SPG; on this reading the recent edge belongs to AMT.
| AMT | SPG | |
|---|---|---|
| Price | $185.27 | $205.44 |
| 1 day | +2.2%lead | +1.0% |
| 5 days | +1.7% | +3.0%lead |
| 1 month | +5.0%lead | +1.2% |
| 6 months | +3.7%lead | +2.0% |
| Year to date | +5.5% | +11.0%lead |
| 52-week position | 70% of range | 50% of range |
| 52-week range | $160.06–$196.08 | $172.19–$238.50 |
| vs 50-day average | above $173.51 | below $209.26 |
| vs 200-day average | above $176.86 | above $204.59 |
| RSI (14) | 73 | 52 |
| Next earnings | 2026-10-27 | 2026-11-05 |
AMT trades at $185.27, above its 50-day average of $173.51, and above the 200-day at $176.86. It sits at 70% of its 52-week range ($160.06–$196.08); 14-day RSI is 73, in overbought territory; an average session moves it about 2.6%. For levels, the first level overhead is $194.12 (4.8% away) and the first support below is $184.34 (0.5% down). On the checklist the page runs for every asset, 5 of 6 checks read bullish — the lean is bullish.
SPG trades at $205.44, below its 50-day average of $209.26, and above the 200-day at $204.59. It sits at 50% of its 52-week range ($172.19–$238.50); 14-day RSI is 52, in neutral territory; an average session moves it about 1.6%. For levels, the first level overhead is $207.26 (0.9% away) and the first support below is $204.59 (0.4% down). On the checklist the page runs for every asset, 4 of 6 checks read bullish — the lean is bullish.
AMT is the more volatile of the two — an average session moves it 2.6% against 1.6% for SPG, so an identical position size carries roughly 1.6× the daily risk.
The comparison turns on those levels: AMT clearing $194.12 or losing $184.34; SPG clearing $207.26 or losing $204.59. Until one of them gives way, the relative reading above stands.