TSEM vs. VST
TSEM (Tower Semiconductor Ltd) and VST (Vistra Corp.) are both stocks. TSEM operates in Semiconductors (Technology), while VST operates in Utilities - Independent Power Producers (Utilities). Over the past 5 years, TSEM returned 57.62%/yr vs 57.72%/yr for VST. At a 0.22 correlation, their price movements are largely independent.
Performance
TSEM vs. VST - Performance Comparison
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Returns By Period
In the year-to-date period, TSEM achieves a 140.72% return, which is significantly higher than VST's 0.94% return.
TSEM
- 1D
- -10.79%
- 1M
- -0.28%
- YTD
- 140.72%
- 6M
- 133.42%
- 1Y
- 604.69%
- 3Y*
- 94.28%
- 5Y*
- 57.62%
- 10Y*
- 37.14%
VST
- 1D
- -2.91%
- 1M
- 4.06%
- YTD
- 0.94%
- 6M
- 0.72%
- 1Y
- -12.49%
- 3Y*
- 88.21%
- 5Y*
- 57.72%
- 10Y*
- —
TSEM vs. VST - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TSEM Tower Semiconductor Ltd | 140.72% | 127.96% | 68.77% | -29.35% | 8.87% | 53.68% | 7.32% | 63.23% | -56.75% | 79.09% |
VST Vistra Corp. | 0.94% | 17.66% | 261.52% | 70.73% | 5.08% | 19.57% | -11.87% | 2.46% | 24.95% | 18.19% |
Correlation
The correlation between TSEM and VST is 0.32, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.32 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.28 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.26 |
Correlation (All Time) Calculated using the full available price history since Oct 4, 2016 | 0.22 |
Fundamentals
TSEM:
$2.15
VST:
$8.60
TSEM:
131.20
VST:
18.87
TSEM:
4.63
VST:
0.43
TSEM:
19.85
VST:
2.41
TSEM:
$1.62B
VST:
$17.20B
TSEM:
$401.63M
VST:
$1.12B
TSEM:
$571.93M
VST:
$4.34B
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Return for Risk
TSEM vs. VST — Risk / Return Rank
TSEM
VST
TSEM vs. VST - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Tower Semiconductor Ltd (TSEM) and Vistra Corp. (VST). 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.
| TSEM | VST | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +8.86 | ||
| Sortino ratioReturn per unit of downside risk | +5.78 | ||
| Omega ratioGain probability vs. loss probability | 1.75 | 1.00 | +0.76 |
| Calmar ratioReturn relative to maximum drawdown | 24.37 | -0.33 | +24.70 |
| Martin ratioReturn relative to average drawdown | 84.04 | -0.59 | +84.63 |
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Drawdowns
TSEM vs. VST - Drawdown Comparison
The maximum TSEM drawdown since its inception was -99.75%, which is greater than VST's maximum drawdown of -53.32%. Use the drawdown chart below to compare losses from any high point for TSEM and VST.
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Drawdown Indicators
| TSEM | VST | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.75% | -53.32% | -46.43% |
Max Drawdown (1Y)Largest decline over 1 year | -25.04% | -38.01% | +12.97% |
Max Drawdown (3Y)Largest decline over 3 years | -45.83% | -48.80% | +2.97% |
Max Drawdown (5Y)Largest decline over 5 years | -55.39% | -48.80% | -6.59% |
Max Drawdown (10Y)Largest decline over 10 years | -62.28% | — | — |
Current DrawdownCurrent decline from peak | -52.75% | -25.17% | -27.58% |
Average DrawdownAverage peak-to-trough decline | -85.36% | -13.75% | -71.61% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.25% | 21.12% | -13.87% |
Volatility
TSEM vs. VST - Volatility Comparison
Tower Semiconductor Ltd (TSEM) has a higher volatility of 29.44% compared to Vistra Corp. (VST) at 14.36%. This indicates that TSEM's price experiences larger fluctuations and is considered to be riskier than VST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TSEM | VST | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 29.44% | 14.36% | +15.08% |
Volatility (6M)Calculated over the trailing 6-month period | 58.34% | 36.88% | +21.46% |
Volatility (1Y)Calculated over the trailing 1-year period | 70.93% | 48.93% | +22.00% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 48.12% | 48.04% | +0.08% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 44.06% | 42.22% | +1.84% |
Dividends
TSEM vs. VST - Dividend Comparison
TSEM has not paid dividends to shareholders, while VST's dividend yield for the trailing twelve months is around 0.56%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
TSEM Tower Semiconductor Ltd | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
VST Vistra Corp. | 0.56% | 0.56% | 0.63% | 2.13% | 3.12% | 2.64% | 2.75% | 2.17% | 0.00% | 0.00% | 14.97% |
Financials
TSEM vs. VST - Financials Comparison
This section allows you to compare key financial metrics between Tower Semiconductor Ltd and Vistra Corp.. 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
TSEM vs. VST - Profitability Comparison
TSEM - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Tower Semiconductor Ltd reported a gross profit of 110.95M and revenue of 413.63M. Therefore, the gross margin over that period was 26.8%.
VST - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Vistra Corp. reported a gross profit of 0.00 and revenue of 5.64B. Therefore, the gross margin over that period was 0.0%.
TSEM - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Tower Semiconductor Ltd reported an operating income of 64.57M and revenue of 413.63M, resulting in an operating margin of 15.6%.
VST - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Vistra Corp. reported an operating income of 1.50B and revenue of 5.64B, resulting in an operating margin of 26.6%.
TSEM - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Tower Semiconductor Ltd reported a net income of 65.03M and revenue of 413.63M, resulting in a net margin of 15.7%.
VST - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Vistra Corp. reported a net income of 980.00M and revenue of 5.64B, resulting in a net margin of 17.4%.
Frequently Asked Questions
TSEM and VST have a correlation of 0.32, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TSEM has higher volatility (29.44%) compared to VST (14.36%). In terms of maximum drawdown, TSEM dropped -99.75% vs VST's -53.32%.
TSEM currently has the higher Sharpe Ratio (8.60 vs -0.26), 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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