DLR vs. VNET

Last updated Apr 1, 2026

Compare and contrast key facts about Digital Realty Trust, Inc. (DLR) and 21Vianet Group, Inc. (VNET).

Performance

DLR vs. VNET - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Digital Realty Trust, Inc. (DLR) and 21Vianet Group, Inc. (VNET). The values are adjusted to include any dividend payments, if applicable.

DLR vs. VNET - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DLR Digital Realty Trust, Inc.	17.28%	-10.07%	35.90%	39.95%	-41.00%	30.66%	20.37%	16.52%	-3.00%	19.80%
VNET 21Vianet Group, Inc.	-0.83%	78.48%	65.16%	-49.38%	-37.21%	-73.97%	378.48%	-16.09%	8.27%	13.84%

Fundamentals

Market Cap DLR : $63.36B VNET : $2.46B
EPS DLR : $3.75 VNET : -$0.94
PS Ratio DLR : 10.28 VNET : 0.23
PB Ratio DLR : 2.85 VNET : 0.40
Total Revenue (TTM) DLR : $6.11B VNET : $9.90B
Gross Profit (TTM) DLR : $3.39B VNET : $2.18B
EBITDA (TTM) DLR : $3.59B VNET : $2.86B

Returns By Period

In the year-to-date period, DLR achieves a 17.28% return, which is significantly higher than VNET's -0.83% return. Over the past 10 years, DLR has outperformed VNET with an annualized return of 11.02%, while VNET has yielded a comparatively lower -8.25% annualized return.

DLR

• 1D: 2.87%
• 1M: 2.39%
• YTD: 17.28%
• 6M: 5.79%
• 1Y: 29.43%
• 3Y*: 26.46%
• 5Y*: 8.35%
• 10Y*: 11.02%

VNET

• 1D: 5.67%
• 1M: -22.17%
• YTD: -0.83%
• 6M: -18.78%
• 1Y: 2.32%
• 3Y*: 37.32%
• 5Y*: -24.21%
• 10Y*: -8.25%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

DLR vs. VNET — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

DLR

DLR Risk / Return Rank: 76
DLR Sharpe Ratio Rank: 80
DLR Sortino Ratio Rank: 76
DLR Omega Ratio Rank: 73
DLR Calmar Ratio Rank: 76
DLR Martin Ratio Rank: 77

VNET

VNET Risk / Return Rank: 44
VNET Sharpe Ratio Rank: 43
VNET Sortino Ratio Rank: 48
VNET Omega Ratio Rank: 45
VNET Calmar Ratio Rank: 43
VNET Martin Ratio Rank: 43

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

DLR vs. VNET - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Digital Realty Trust, Inc. (DLR) and 21Vianet Group, Inc. (VNET). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	DLR	VNET	Difference
Sharpe ratio Return per unit of total volatility	1.24	0.03	+1.21
Sortino ratio Return per unit of downside risk	1.84	0.71	+1.13
Omega ratio Gain probability vs. loss probability	1.23	1.08	+0.15
Calmar ratio Return relative to maximum drawdown	1.81	0.04	+1.77
Martin ratio Return relative to average drawdown	4.74	0.08	+4.66
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

DLR vs. VNET - Sharpe Ratio Comparison

The current DLR Sharpe Ratio is 1.24, which is higher than the VNET Sharpe Ratio of 0.03. The chart below compares the historical Sharpe Ratios of DLR and VNET, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	DLR	VNET	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.24	0.03	+1.21
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.29	-0.26	+0.55
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.39	-0.10	+0.49
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	-0.07	+0.63

Correlation

The correlation between DLR and VNET is 0.13, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

DLR vs. VNET - Dividend Comparison

DLR's dividend yield for the trailing twelve months is around 2.71%, while VNET has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DLR Digital Realty Trust, Inc.	2.71%	3.15%	2.75%	3.63%	4.87%	2.62%	3.21%	3.61%	3.79%	3.27%	3.58%	4.50%
VNET 21Vianet Group, Inc.	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

DLR vs. VNET - Drawdown Comparison

The maximum DLR drawdown since its inception was -56.80%, smaller than the maximum VNET drawdown of -96.67%. Use the drawdown chart below to compare losses from any high point for DLR and VNET.

Drawdown Indicators

	DLR	VNET	Difference
Max Drawdown Largest peak-to-trough decline	-56.80%	-96.67%	+39.87%
Max Drawdown (1Y) Largest decline over 1 year	-16.83%	-43.41%	+26.58%
Max Drawdown (5Y) Largest decline over 5 years	-48.52%	-95.84%	+47.32%
Max Drawdown (10Y) Largest decline over 10 years	-48.52%	-96.67%	+48.15%
Current Drawdown Current decline from peak	-3.80%	-80.31%	+76.51%
Average Drawdown Average peak-to-trough decline	-11.20%	-60.54%	+49.34%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.43%	20.59%	-14.16%

Volatility

DLR vs. VNET - Volatility Comparison

The current volatility for Digital Realty Trust, Inc. (DLR) is 7.03%, while 21Vianet Group, Inc. (VNET) has a volatility of 23.52%. This indicates that DLR experiences smaller price fluctuations and is considered to be less risky than VNET based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DLR	VNET	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.03%	23.52%	-16.49%
Volatility (6M) Calculated over the trailing 6-month period	16.94%	52.45%	-35.51%
Volatility (1Y) Calculated over the trailing 1-year period	23.89%	85.35%	-61.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.49%	95.15%	-66.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	28.13%	81.52%	-53.39%

Financials

DLR vs. VNET - Profitability Comparison

The chart below illustrates the profitability comparison between Digital Realty Trust, Inc. and 21Vianet Group, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

DLR - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Digital Realty Trust, Inc. reported a gross profit of 885.04M and revenue of 1.63B. Therefore, the gross margin over that period was 54.1%.

VNET - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, 21Vianet Group, Inc. reported a gross profit of 532.93M and revenue of 2.65B. Therefore, the gross margin over that period was 20.1%.

DLR - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Digital Realty Trust, Inc. reported an operating income of 112.62M and revenue of 1.63B, resulting in an operating margin of 6.9%.

VNET - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, 21Vianet Group, Inc. reported an operating income of 136.43M and revenue of 2.65B, resulting in an operating margin of 5.2%.

DLR - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Digital Realty Trust, Inc. reported a net income of 98.65M and revenue of 1.63B, resulting in a net margin of 6.0%.

VNET - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, 21Vianet Group, Inc. reported a net income of 295.70M and revenue of 2.65B, resulting in a net margin of 11.2%.