TSEM vs. COHR
TSEM (Tower Semiconductor Ltd) and COHR (Coherent, Inc.) are both stocks. Both are in the Technology sector — TSEM in Semiconductors, COHR in Scientific & Technical Instruments. Over the past 10 years, TSEM returned 35.70%/yr vs 34.35%/yr for COHR. At a 0.25 correlation, their price movements are largely independent.
Performance
TSEM vs. COHR - Performance Comparison
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Returns By Period
In the year-to-date period, TSEM achieves a 123.91% return, which is significantly higher than COHR's 108.61% return. Both investments have delivered pretty close results over the past 10 years, with TSEM having a 35.70% annualized return and COHR not far behind at 34.35%.
TSEM
- 1D
- 1.77%
- 1M
- -2.90%
- YTD
- 123.91%
- 6M
- 121.05%
- 1Y
- 553.70%
- 3Y*
- 86.93%
- 5Y*
- 56.98%
- 10Y*
- 35.70%
COHR
- 1D
- 5.90%
- 1M
- -4.63%
- YTD
- 108.61%
- 6M
- 115.90%
- 1Y
- 375.64%
- 3Y*
- 107.95%
- 5Y*
- 40.59%
- 10Y*
- 34.35%
TSEM vs. COHR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TSEM Tower Semiconductor Ltd | 123.91% | 127.96% | 68.77% | -29.35% | 8.87% | 53.68% | 7.32% | 63.23% | -56.75% | 79.09% |
COHR Coherent, Inc. | 108.61% | 94.84% | 117.62% | 24.02% | -48.63% | -10.04% | 125.60% | 3.73% | -30.86% | 58.35% |
Correlation
The correlation between TSEM and COHR is 0.60, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.60 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.53 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.52 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.51 |
Correlation (All Time) Calculated using the full available price history since Oct 26, 1994 | 0.25 |
Over the past year, TSEM and COHR have become more correlated (0.60) than their long-term average of 0.25, meaning their price movements have been converging.
Fundamentals
TSEM:
$2.15
COHR:
$1.64K
TSEM:
122.04
COHR:
0.23
TSEM:
4.30
COHR:
0.04
TSEM:
18.47
COHR:
0.02
TSEM:
$1.62B
COHR:
$1.81T
TSEM:
$401.63M
COHR:
$1.76B
TSEM:
$571.93M
COHR:
$960.76M
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Return for Risk
TSEM vs. COHR — Risk / Return Rank
TSEM
COHR
TSEM vs. COHR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Tower Semiconductor Ltd (TSEM) and Coherent, Inc. (COHR). 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 | COHR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.99 | ||
| Sortino ratioReturn per unit of downside risk | +1.83 | ||
| Omega ratioGain probability vs. loss probability | 1.74 | 1.54 | +0.20 |
| Calmar ratioReturn relative to maximum drawdown | 22.31 | 14.28 | +8.03 |
| Martin ratioReturn relative to average drawdown | 77.52 | 39.14 | +38.38 |
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Drawdowns
TSEM vs. COHR - Drawdown Comparison
The maximum TSEM drawdown since its inception was -99.75%, which is greater than COHR's maximum drawdown of -80.89%. Use the drawdown chart below to compare losses from any high point for TSEM and COHR.
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Drawdown Indicators
| TSEM | COHR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.75% | -80.89% | -18.86% |
Max Drawdown (1Y)Largest decline over 1 year | -25.04% | -26.52% | +1.48% |
Max Drawdown (3Y)Largest decline over 3 years | -46.78% | -54.85% | +8.07% |
Max Drawdown (5Y)Largest decline over 5 years | -55.39% | -62.87% | +7.48% |
Max Drawdown (10Y)Largest decline over 10 years | -62.28% | -72.22% | +9.94% |
Current DrawdownCurrent decline from peak | -56.05% | -9.81% | -46.24% |
Average DrawdownAverage peak-to-trough decline | -85.38% | -35.02% | -50.36% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.20% | 9.66% | -2.46% |
Volatility
TSEM vs. COHR - Volatility Comparison
The current volatility for Tower Semiconductor Ltd (TSEM) is 25.08%, while Coherent, Inc. (COHR) has a volatility of 27.87%. This indicates that TSEM experiences smaller price fluctuations and is considered to be less risky than COHR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TSEM | COHR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 25.08% | 27.87% | -2.79% |
Volatility (6M)Calculated over the trailing 6-month period | 55.81% | 57.45% | -1.64% |
Volatility (1Y)Calculated over the trailing 1-year period | 68.83% | 73.72% | -4.89% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 47.30% | 61.62% | -14.32% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 43.61% | 56.55% | -12.94% |
Dividends
TSEM vs. COHR - Dividend Comparison
Neither TSEM nor COHR has paid dividends to shareholders.
Financials
TSEM vs. COHR - Financials Comparison
This section allows you to compare key financial metrics between Tower Semiconductor Ltd and Coherent, 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
TSEM vs. COHR - 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%.
COHR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Coherent, Inc. reported a gross profit of 0.00 and revenue of 1.81T. 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%.
COHR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Coherent, Inc. reported an operating income of 0.00 and revenue of 1.81T, resulting in an operating margin of 0.0%.
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%.
COHR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Coherent, Inc. reported a net income of 191.40B and revenue of 1.81T, resulting in a net margin of 10.6%.
Frequently Asked Questions
TSEM and COHR have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
COHR has higher volatility (27.87%) compared to TSEM (25.08%). In terms of maximum drawdown, TSEM dropped -99.75% vs COHR's -80.89%.
TSEM currently has the higher Sharpe Ratio (8.13 vs 5.14), 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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