TNDM vs. SPWR
TNDM (Tandem Diabetes Care, Inc.) and SPWR (SunPower Corporation) are both stocks. TNDM operates in Medical Devices (Healthcare), while SPWR operates in Solar (Technology). Their 0.04 correlation means their historical movements had little consistent relationship.
Performance
TNDM vs. SPWR - Performance Comparison
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Returns By Period
TNDM
- 1D
- 2.58%
- 1M
- 27.28%
- 6M
- -1.96%
- YTD
- -11.28%
- 1Y
- 26.62%
- 3Y*
- -15.44%
- 5Y*
- -29.08%
- 10Y*
- -10.99%
- ALL TIME*
- -16.57%
SPWR
- 1D
- -5.55%
- 1M
- -52.26%
- 6M
- —
- YTD
- —
- 1Y
- —
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- —
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $2.86M | $2.36M | $2.97M | |
| $30.05M | $27.81M | $39.07M |
TNDM vs. SPWR - Yearly Performance Comparison
| 2026 (YTD) | |
|---|---|
TNDM Tandem Diabetes Care, Inc. | 31.58% |
SPWR SunPower Corporation | -71.84% |
Correlation
The correlation between TNDM and SPWR is 0.04, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (All Time) Calculated using the full available price history since May 28, 2026 | 0.04 |
Fundamentals
TNDM:
$1.34B
SPWR:
$29.57M
TNDM:
-$1.39
SPWR:
-$0.04
TNDM:
1.29
SPWR:
0.83
TNDM:
$1.03B
SPWR:
$308.76M
TNDM:
$564.40M
SPWR:
$149.79M
TNDM:
-$75.59M
SPWR:
-$3.66M
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Return for Risk
TNDM vs. SPWR — Risk / Return Rank
TNDM
SPWR
Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.
TNDM vs. SPWR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Tandem Diabetes Care, Inc. (TNDM) and SunPower Corporation (SPWR). 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.
| TNDM | SPWR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | — | — | |
| Sortino ratioReturn per unit of downside risk | — | — | |
| Omega ratioGain probability vs. loss probability | 1.13 | — | — |
| Calmar ratioReturn relative to maximum drawdown | 0.46 | — | — |
| Martin ratioReturn relative to average drawdown | 0.97 | — | — |
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Drawdowns
TNDM vs. SPWR - Drawdown Comparison
The maximum TNDM drawdown since its inception was -99.25%, which is greater than SPWR's maximum drawdown of -73.39%. Use the drawdown chart below to compare losses from any high point for TNDM and SPWR.
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Drawdown Indicators
| TNDM | SPWR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.25% | -73.39% | -25.86% |
Max Drawdown (1Y)Largest decline over 1 year | -54.64% | — | — |
Max Drawdown (3Y)Largest decline over 3 years | -81.07% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -93.40% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -97.44% | — | — |
Current DrawdownCurrent decline from peak | -93.50% | -72.36% | -21.14% |
Average DrawdownAverage peak-to-trough decline | -77.37% | -36.55% | -40.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 26.18% | — | — |
Volatility
TNDM vs. SPWR - Volatility Comparison
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Volatility by Period
| TNDM | SPWR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 14.81% | — | — |
Volatility (6M)Calculated over the trailing 6-month period | 59.01% | — | — |
Volatility (1Y)Calculated over the trailing 1-year period | 79.74% | 129.00% | -49.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 68.28% | 129.00% | -60.72% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 77.77% | 129.00% | -51.23% |
Dividends
TNDM vs. SPWR - Dividend Comparison
Neither TNDM nor SPWR has paid dividends to shareholders.
Financials
TNDM vs. SPWR - Financials Comparison
This section allows you to compare key financial metrics between Tandem Diabetes Care, Inc. and SunPower Corporation. 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
TNDM vs. SPWR - Profitability Comparison
TNDM - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Tandem Diabetes Care, Inc. reported a gross profit of 136.79M and revenue of 247.22M. Therefore, the gross margin over that period was 55.3%.
SPWR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, SunPower Corporation reported a gross profit of 48.85M and revenue of 88.49M. Therefore, the gross margin over that period was 55.2%.
TNDM - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Tandem Diabetes Care, Inc. reported an operating income of -17.43M and revenue of 247.22M, resulting in an operating margin of -7.1%.
SPWR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, SunPower Corporation reported an operating income of -1.12M and revenue of 88.49M, resulting in an operating margin of -1.3%.
TNDM - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Tandem Diabetes Care, Inc. reported a net income of -20.39M and revenue of 247.22M, resulting in a net margin of -8.3%.
SPWR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, SunPower Corporation reported a net income of -1.12M and revenue of 88.49M, resulting in a net margin of -1.3%.
Frequently Asked Questions
TNDM and SPWR have a correlation of 0.04, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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