TMDX vs. LUMN
TMDX (TransMedics Group, Inc.) and LUMN (Lumen Technologies, Inc.) are both stocks. TMDX operates in Medical Devices (Healthcare), while LUMN operates in Telecom Services (Communication Services). Over the past 5 years, TMDX returned 20.83%/yr vs -8.90%/yr for LUMN. At a 0.22 correlation, their price movements are largely independent.
Performance
TMDX vs. LUMN - Performance Comparison
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Returns By Period
In the year-to-date period, TMDX achieves a -40.07% return, which is significantly lower than LUMN's 9.27% return.
TMDX
- 1D
- -0.92%
- 1M
- 15.36%
- YTD
- -40.07%
- 6M
- -42.50%
- 1Y
- -48.97%
- 3Y*
- -4.58%
- 5Y*
- 20.83%
- 10Y*
- —
LUMN
- 1D
- 0.00%
- 1M
- -15.52%
- YTD
- 9.27%
- 6M
- -0.12%
- 1Y
- 110.15%
- 3Y*
- 58.55%
- 5Y*
- -8.90%
- 10Y*
- -5.46%
TMDX vs. LUMN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
TMDX TransMedics Group, Inc. | -40.07% | 95.11% | -21.01% | 27.88% | 222.13% | -3.72% | 4.68% | -6.12% |
LUMN Lumen Technologies, Inc. | 9.27% | 46.33% | 190.16% | -64.94% | -55.48% | 38.82% | -19.18% | 23.83% |
Correlation
The correlation between TMDX and LUMN is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.22 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.19 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.22 |
Correlation (All Time) Calculated using the full available price history since May 2, 2019 | 0.22 |
Fundamentals
TMDX:
$2.64B
LUMN:
$8.48B
TMDX:
$4.34
LUMN:
-$1.75
TMDX:
4.54
LUMN:
0.70
TMDX:
5.34
LUMN:
0.73
TMDX:
$635.89M
LUMN:
$12.12B
TMDX:
$375.74M
LUMN:
$1.52B
TMDX:
$125.51M
LUMN:
$1.12B
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Return for Risk
TMDX vs. LUMN — Risk / Return Rank
TMDX
LUMN
TMDX vs. LUMN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for TransMedics Group, Inc. (TMDX) and Lumen Technologies, Inc. (LUMN). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| TMDX | LUMN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.13 | ||
| Sortino ratioReturn per unit of downside risk | -3.20 | ||
| Omega ratioGain probability vs. loss probability | 0.86 | 1.26 | -0.40 |
| Calmar ratioReturn relative to maximum drawdown | -0.84 | 2.17 | -3.01 |
| Martin ratioReturn relative to average drawdown | -1.99 | 4.11 | -6.10 |
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Drawdowns
TMDX vs. LUMN - Drawdown Comparison
The maximum TMDX drawdown since its inception was -73.69%, smaller than the maximum LUMN drawdown of -95.26%. Use the drawdown chart below to compare losses from any high point for TMDX and LUMN.
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Drawdown Indicators
| TMDX | LUMN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -73.69% | -95.26% | +21.57% |
Max Drawdown (1Y)Largest decline over 1 year | -58.76% | -47.34% | -11.42% |
Max Drawdown (3Y)Largest decline over 3 years | -67.79% | -69.66% | +1.87% |
Max Drawdown (5Y)Largest decline over 5 years | -67.79% | -92.54% | +24.75% |
Max Drawdown (10Y)Largest decline over 10 years | — | -94.44% | — |
Current DrawdownCurrent decline from peak | -58.60% | -58.92% | +0.32% |
Average DrawdownAverage peak-to-trough decline | -31.89% | -27.66% | -4.23% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 24.65% | 24.94% | -0.29% |
Volatility
TMDX vs. LUMN - Volatility Comparison
The current volatility for TransMedics Group, Inc. (TMDX) is 12.66%, while Lumen Technologies, Inc. (LUMN) has a volatility of 22.04%. This indicates that TMDX experiences smaller price fluctuations and is considered to be less risky than LUMN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TMDX | LUMN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.66% | 22.04% | -9.38% |
Volatility (6M)Calculated over the trailing 6-month period | 43.87% | 57.12% | -13.25% |
Volatility (1Y)Calculated over the trailing 1-year period | 58.06% | 80.17% | -22.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 72.00% | 85.30% | -13.30% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 71.72% | 67.61% | +4.11% |
Dividends
TMDX vs. LUMN - Dividend Comparison
Neither TMDX nor LUMN has paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LUMN Lumen Technologies, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 14.37% | 7.97% | 10.26% | 7.57% | 14.26% | 12.95% | 9.08% | 8.59% |
TMDX TransMedics 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% |
Financials
TMDX vs. LUMN - Financials Comparison
This section allows you to compare key financial metrics between TransMedics Group, Inc. and Lumen Technologies, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
TMDX vs. LUMN - Profitability Comparison
TMDX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, TransMedics Group, Inc. reported a gross profit of 101.16M and revenue of 173.93M. Therefore, the gross margin over that period was 58.2%.
LUMN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Lumen Technologies, Inc. reported a gross profit of 0.00 and revenue of 2.90B. Therefore, the gross margin over that period was 0.0%.
TMDX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, TransMedics Group, Inc. reported an operating income of 13.30M and revenue of 173.93M, resulting in an operating margin of 7.6%.
LUMN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Lumen Technologies, Inc. reported an operating income of 602.00M and revenue of 2.90B, resulting in an operating margin of 20.8%.
TMDX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, TransMedics Group, Inc. reported a net income of 7.32M and revenue of 173.93M, resulting in a net margin of 4.2%.
LUMN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Lumen Technologies, Inc. reported a net income of -200.00M and revenue of 2.90B, resulting in a net margin of -6.9%.
Frequently Asked Questions
TMDX and LUMN have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
LUMN has higher volatility (22.04%) compared to TMDX (12.66%). In terms of maximum drawdown, TMDX dropped -73.69% vs LUMN's -95.26%.
LUMN currently has the higher Sharpe Ratio (1.28 vs -0.85), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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