TAC vs. NRGV
TAC (TransAlta Corp) and NRGV (Energy Vault Holdings, Inc.) are both stocks. Both are in the Utilities sector — TAC in Utilities - Independent Power Producers, NRGV in Utilities - Renewable. Over the past 3 years, TAC returned 8.79%/yr vs -0.43%/yr for NRGV. Their 0.24 correlation means their historical movements had little consistent relationship.
Performance
TAC vs. NRGV - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, TAC achieves a -1.66% return, which is significantly higher than NRGV's -33.84% return.
TAC
- 1D
- -1.28%
- 1M
- -8.39%
- 6M
- -2.59%
- YTD
- -1.66%
- 1Y
- 1.18%
- 3Y*
- 8.79%
- 5Y*
- 5.11%
- 10Y*
- 12.32%
- ALL TIME*
- 3.54%
NRGV
- 1D
- 7.02%
- 1M
- -24.50%
- 6M
- -33.70%
- YTD
- -33.84%
- 1Y
- 190.48%
- 3Y*
- -0.43%
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- -25.71%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $11.85M | $13.67M | $24.26M | |
| $20.86M | $19.83M | $22.23M |
TAC vs. NRGV - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
TAC TransAlta Corp | -1.66% | -9.24% | 73.96% | -5.50% | -12.86% |
NRGV Energy Vault Holdings, Inc. | -33.84% | 102.19% | -2.15% | -25.32% | -72.87% |
Correlation
The correlation between TAC and NRGV is 0.27, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.27 |
Correlation (3Y) Balances recent behavior with more history. | 0.29 |
Correlation (All Time) Calculated using the full available price history since Feb 14, 2022 | 0.24 |
Fundamentals
TAC:
$3.68B
NRGV:
$552.78M
TAC:
-CA$0.08
NRGV:
-$0.69
TAC:
2.31
NRGV:
2.36
TAC:
6.24
NRGV:
17.21
TAC:
CA$2.27B
NRGV:
$217.02M
TAC:
CA$988.52M
NRGV:
$47.90M
TAC:
CA$822.39M
NRGV:
-$75.37M
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
TAC vs. NRGV — Risk / Return Rank
TAC
NRGV
TAC vs. NRGV - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for TransAlta Corp (TAC) and Energy Vault Holdings, Inc. (NRGV). 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.
| TAC | NRGV | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.78 | ||
| Sortino ratioReturn per unit of downside risk | -2.04 | ||
| Omega ratioGain probability vs. loss probability | 1.04 | 1.29 | -0.25 |
| Calmar ratioReturn relative to maximum drawdown | 0.04 | 3.13 | -3.09 |
| Martin ratioReturn relative to average drawdown | 0.06 | 6.54 | -6.49 |
Loading charts...
Drawdowns
TAC vs. NRGV - Drawdown Comparison
The maximum TAC drawdown since its inception was -88.12%, smaller than the maximum NRGV drawdown of -97.09%. Use the drawdown chart below to compare losses from any high point for TAC and NRGV.
Loading charts...
Drawdown Indicators
| TAC | NRGV | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -88.12% | -97.09% | +8.97% |
Max Drawdown (1Y)Largest decline over 1 year | -33.10% | -61.33% | +28.23% |
Max Drawdown (3Y)Largest decline over 3 years | -43.26% | -80.68% | +37.42% |
Max Drawdown (5Y)Largest decline over 5 years | -46.55% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -55.11% | — | — |
Current DrawdownCurrent decline from peak | -29.86% | -85.91% | +56.05% |
Average DrawdownAverage peak-to-trough decline | -40.47% | -82.75% | +42.28% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 21.34% | 29.24% | -7.90% |
Volatility
TAC vs. NRGV - Volatility Comparison
The current volatility for TransAlta Corp (TAC) is 11.36%, while Energy Vault Holdings, Inc. (NRGV) has a volatility of 31.56%. This indicates that TAC experiences smaller price fluctuations and is considered to be less risky than NRGV based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| TAC | NRGV | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 11.36% | 31.56% | -20.20% |
Volatility (6M)Calculated over the trailing 6-month period | 28.89% | 76.76% | -47.87% |
Volatility (1Y)Calculated over the trailing 1-year period | 40.53% | 106.09% | -65.56% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 35.23% | 113.49% | -78.26% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 35.54% | 113.49% | -77.95% |
Dividends
TAC vs. NRGV - Dividend Comparison
TAC's dividend yield for the trailing twelve months is around 1.56%, while NRGV has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
NRGV Energy Vault Holdings, 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% |
TAC TransAlta Corp | 1.56% | 1.44% | 1.24% | 2.13% | 1.76% | 1.38% | 1.69% | 1.68% | 3.20% | 2.69% | 2.74% | 20.34% |
Financials
TAC vs. NRGV - Financials Comparison
This section allows you to compare key financial metrics between TransAlta Corp and Energy Vault Holdings, 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
Frequently Asked Questions
TAC and NRGV have a correlation of 0.27, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
NRGV has higher volatility (31.56%) compared to TAC (11.36%). In terms of maximum drawdown, TAC dropped -88.12% vs NRGV's -97.09%.
NRGV currently has the higher Sharpe Ratio (1.81 vs 0.03), 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.
Find the right allocation for TAC and NRGV
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer