NBST vs. FIDEX
NBST (Newbury Street Acquisition Corporation) is a stock, while FIDEX (Fidelity SAI Sustainable U.S. Equity Fund) is Large Cap Blend Equities fund actively managed by Fidelity. Over the past 3 years, NBST returned 2.93%/yr vs 17.82%/yr for FIDEX. Their -0.01 correlation means they have often moved in opposite directions in the past.
Performance
NBST vs. FIDEX - Performance Comparison
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Returns By Period
In the year-to-date period, NBST achieves a -42.25% return, which is significantly lower than FIDEX's 12.02% return.
NBST
- 1D
- 0.00%
- 1M
- 5.00%
- 6M
- 9.90%
- YTD
- -42.25%
- 1Y
- -11.09%
- 3Y*
- 2.93%
- 5Y*
- 3.60%
- 10Y*
- —
- ALL TIME*
- 2.92%
FIDEX
- 1D
- 2.30%
- 1M
- -0.96%
- 6M
- 10.01%
- YTD
- 12.02%
- 1Y
- 22.99%
- 3Y*
- 17.82%
- 5Y*
- —
- 10Y*
- —
- ALL TIME*
- 14.70%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $115.50 | $605.00 | $205.10 |
NBST vs. FIDEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | |
|---|---|---|---|---|---|
NBST Newbury Street Acquisition Corporation | -42.25% | 72.56% | 8.93% | 6.29% | 2.35% |
FIDEX Fidelity SAI Sustainable U.S. Equity Fund | 12.02% | 15.80% | 21.44% | 24.99% | -8.88% |
Correlation
The correlation between NBST and FIDEX is 0.11, which is low. Their historical price movements had little consistent relationship.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.11 |
Correlation (3Y) Balances recent behavior with more history. | -0.00 |
Correlation (All Time) Calculated using the full available price history since Apr 25, 2022 | -0.01 |
The correlation between NBST and FIDEX shifts across timeframes, from -0.01 (all time) to 0.11 (1 year), reflecting how their relationship changes across market environments.
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Return for Risk
NBST vs. FIDEX — Risk / Return Rank
NBST
FIDEX
NBST vs. FIDEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Newbury Street Acquisition Corporation (NBST) and Fidelity SAI Sustainable U.S. Equity Fund (FIDEX). 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.
| NBST | FIDEX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.48 | ||
| Sortino ratioReturn per unit of downside risk | -0.95 | ||
| Omega ratioGain probability vs. loss probability | 1.62 | 1.25 | +0.37 |
| Calmar ratioReturn relative to maximum drawdown | -0.22 | 2.07 | -2.30 |
| Martin ratioReturn relative to average drawdown | -0.34 | 9.49 | -9.83 |
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Drawdowns
NBST vs. FIDEX - Drawdown Comparison
The maximum NBST drawdown since its inception was -49.90%, which is greater than FIDEX's maximum drawdown of -21.90%. Use the drawdown chart below to compare losses from any high point for NBST and FIDEX.
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Drawdown Indicators
| NBST | FIDEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -49.90% | -21.90% | -28.00% |
Max Drawdown (1Y)Largest decline over 1 year | -49.90% | -10.13% | -39.77% |
Max Drawdown (3Y)Largest decline over 3 years | -49.90% | -21.90% | -28.00% |
Max Drawdown (5Y)Largest decline over 5 years | -49.90% | — | — |
Current DrawdownCurrent decline from peak | -42.25% | -2.02% | -40.23% |
Average DrawdownAverage peak-to-trough decline | -6.25% | -3.61% | -2.64% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 32.56% | 2.21% | +30.35% |
Volatility
NBST vs. FIDEX - Volatility Comparison
Newbury Street Acquisition Corporation (NBST) has a higher volatility of 4.88% compared to Fidelity SAI Sustainable U.S. Equity Fund (FIDEX) at 3.93%. This indicates that NBST's price experiences larger fluctuations and is considered to be riskier than FIDEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| NBST | FIDEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.88% | 3.93% | +0.95% |
Volatility (6M)Calculated over the trailing 6-month period | 47.53% | 12.07% | +35.46% |
Volatility (1Y)Calculated over the trailing 1-year period | 142.63% | 14.99% | +127.64% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 64.26% | 18.41% | +45.85% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 62.71% | 18.41% | +44.30% |
Dividends
NBST vs. FIDEX - Dividend Comparison
NBST has not paid dividends to shareholders, while FIDEX's dividend yield for the trailing twelve months is around 0.15%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 |
|---|---|---|---|---|---|
FIDEX Fidelity SAI Sustainable U.S. Equity Fund | 0.15% | 1.64% | 1.87% | 0.46% | 0.63% |
NBST Newbury Street Acquisition Corporation | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
NBST and FIDEX have a correlation of 0.11, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
NBST has higher volatility (4.88%) compared to FIDEX (3.93%). In terms of maximum drawdown, NBST dropped -49.90% vs FIDEX's -21.90%.
FIDEX currently has the higher Sharpe Ratio (1.40 vs -0.08), 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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