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STOCK COMPARISON

Simon Property Group, inc. vs Digital Realty Trust: Fair Value & Quality

Both stocks run through our 21 valuation models. Here is how Simon Property Group, inc. (SPG) and Digital Realty Trust (DLR) compare, as of Jul 23, 2026.

As of Jul 23, 2026, Fair Value Calculator sees Simon Property Group, inc. as the more attractively valued of the two: Simon Property Group, inc. trades at $227 versus a fair value of $86.11 (-62%), while Digital Realty Trust trades at $179 versus $63.31 (-65%).
Simon Property Group, inc.
SPG · Real Estate
-62%
above fair value
overvalued
Price$227
Fair Value$86.11
Quality64/100
Digital Realty Trust
DLR · Real Estate
-65%
above fair value
overvalued
Price$179
Fair Value$63.31
Quality50/100

Ranked within their sector

Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.

Simon Property Group, inc. · Real Estate

Quality score64 · Top 25%
Fair value upside-62% · bottom 25%

Digital Realty Trust · Real Estate

Quality score50 · below median
Fair value upside-65% · bottom 25%

Bottom line

As of Jul 23, 2026, Fair Value Calculator sees Simon Property Group, inc. as the more attractively valued of the two: Simon Property Group, inc. trades at $227 versus a fair value of $86.11 (-62%), while Digital Realty Trust trades at $179 versus $63.31 (-65%).

Simon Property Group, inc. has the higher quality score (64/100).

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A model-based valuation snapshot from 21 models, not a recommendation and not financial advice. Values change with price and fundamentals; the date shown above applies.