BELFB vs. SNDK
BELFB (Bel Fuse Inc.) and SNDK (Sandisk Corporation) are both stocks. Both are in the Technology sector — BELFB in Electronic Components, SNDK in Computer Hardware. Over the past year, BELFB returned 241.70% vs 4559.06% for SNDK. At a 0.41 correlation, their price movements are largely independent.
Performance
BELFB vs. SNDK - Performance Comparison
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Returns By Period
In the year-to-date period, BELFB achieves a 73.36% return, which is significantly lower than SNDK's 734.15% return.
BELFB
- 1D
- -0.90%
- 1M
- 9.36%
- YTD
- 73.36%
- 6M
- 69.86%
- 1Y
- 241.70%
- 3Y*
- 72.41%
- 5Y*
- 84.50%
- 10Y*
- 34.34%
SNDK
- 1D
- 5.24%
- 1M
- 43.20%
- YTD
- 734.15%
- 6M
- 860.37%
- 1Y
- 4,559.06%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
BELFB vs. SNDK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | |
|---|---|---|
BELFB Bel Fuse Inc. | 73.36% | 97.51% |
SNDK Sandisk Corporation | 734.15% | 356.50% |
Correlation
The correlation between BELFB and SNDK is 0.37, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.37 |
Correlation (All Time) Calculated using the full available price history since Feb 24, 2025 | 0.41 |
Fundamentals
BELFB:
$621.54M
SNDK:
$310.88B
BELFB:
$7.60
SNDK:
$29.70
BELFB:
38.65
SNDK:
66.67
BELFB:
3.03
SNDK:
22.79
BELFB:
0.65
SNDK:
22.56
BELFB:
$701.71M
SNDK:
$13.18B
BELFB:
$275.20M
SNDK:
$7.39B
BELFB:
$135.78M
SNDK:
$5.37B
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Return for Risk
BELFB vs. SNDK — Risk / Return Rank
BELFB
SNDK
BELFB vs. SNDK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Bel Fuse Inc. (BELFB) and Sandisk Corporation (SNDK). 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.
| BELFB | SNDK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -42.97 | ||
| Sortino ratioReturn per unit of downside risk | -4.00 | ||
| Omega ratioGain probability vs. loss probability | 1.60 | 2.16 | -0.57 |
| Calmar ratioReturn relative to maximum drawdown | 12.41 | 152.17 | -139.77 |
| Martin ratioReturn relative to average drawdown | 36.02 | 461.00 | -424.97 |
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Drawdowns
BELFB vs. SNDK - Drawdown Comparison
The maximum BELFB drawdown since its inception was -81.89%, which is greater than SNDK's maximum drawdown of -47.50%. Use the drawdown chart below to compare losses from any high point for BELFB and SNDK.
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Drawdown Indicators
| BELFB | SNDK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -81.89% | -47.50% | -34.39% |
Max Drawdown (1Y)Largest decline over 1 year | -19.54% | -31.34% | +11.80% |
Max Drawdown (3Y)Largest decline over 3 years | -36.49% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -36.49% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -79.79% | — | — |
Current DrawdownCurrent decline from peak | -2.93% | 0.00% | -2.93% |
Average DrawdownAverage peak-to-trough decline | -36.85% | -13.74% | -23.11% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.72% | 10.32% | -3.60% |
Volatility
BELFB vs. SNDK - Volatility Comparison
The current volatility for Bel Fuse Inc. (BELFB) is 14.25%, while Sandisk Corporation (SNDK) has a volatility of 26.68%. This indicates that BELFB experiences smaller price fluctuations and is considered to be less risky than SNDK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BELFB | SNDK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 14.25% | 26.68% | -12.43% |
Volatility (6M)Calculated over the trailing 6-month period | 36.10% | 71.96% | -35.86% |
Volatility (1Y)Calculated over the trailing 1-year period | 48.91% | 99.48% | -50.57% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 51.65% | 97.64% | -45.99% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 58.40% | 97.64% | -39.24% |
Dividends
BELFB vs. SNDK - Dividend Comparison
BELFB's dividend yield for the trailing twelve months is around 0.10%, while SNDK has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BELFB Bel Fuse Inc. | 0.10% | 0.17% | 0.34% | 0.42% | 0.85% | 2.17% | 1.86% | 1.37% | 1.52% | 1.11% | 0.91% | 1.62% |
SNDK Sandisk Corporation | 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
BELFB vs. SNDK - Financials Comparison
This section allows you to compare key financial metrics between Bel Fuse Inc. and Sandisk 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
BELFB vs. SNDK - Profitability Comparison
BELFB - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Bel Fuse Inc. reported a gross profit of 69.60M and revenue of 178.49M. Therefore, the gross margin over that period was 39.0%.
SNDK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Sandisk Corporation reported a gross profit of 4.66B and revenue of 5.95B. Therefore, the gross margin over that period was 78.4%.
BELFB - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Bel Fuse Inc. reported an operating income of 23.67M and revenue of 178.49M, resulting in an operating margin of 13.3%.
SNDK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Sandisk Corporation reported an operating income of 4.11B and revenue of 5.95B, resulting in an operating margin of 69.1%.
BELFB - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Bel Fuse Inc. reported a net income of 11.38M and revenue of 178.49M, resulting in a net margin of 6.4%.
SNDK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Sandisk Corporation reported a net income of 3.62B and revenue of 5.95B, resulting in a net margin of 60.8%.
Frequently Asked Questions
BELFB and SNDK have a correlation of 0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SNDK has higher volatility (26.68%) compared to BELFB (14.25%). In terms of maximum drawdown, BELFB dropped -81.89% vs SNDK's -47.50%.
SNDK currently has the higher Sharpe Ratio (47.94 vs 4.97), 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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