NASDX vs. SPY

Last updated Jun 23, 2026

NASDX (Shelton Capital Management Nasdaq-100 Index Fund Direct Shares) and SPY (State Street SPDR S&P 500 ETF) are both funds - NASDX is a Large Cap Growth Equities fund tracking the NASDAQ-100 Index, while SPY is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, NASDX returned 22.78%/yr vs 15.70%/yr for SPY. Their correlation of 0.87 suggests significant overlap in exposure. NASDX charges 0.63%/yr vs 0.09%/yr for SPY.

Performance

NASDX vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Shelton Capital Management Nasdaq-100 Index Fund Direct Shares (NASDX) and State Street SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, NASDX achieves a 20.41% return, which is significantly higher than SPY's 9.74% return. Over the past 10 years, NASDX has outperformed SPY with an annualized return of 22.78%, while SPY has yielded a comparatively lower 15.70% annualized return.

NASDX

• 1D: 2.48%
• 1M: 3.17%
• YTD: 20.41%
• 6M: 19.57%
• 1Y: 41.12%
• 3Y*: 30.69%
• 5Y*: 19.33%
• 10Y*: 22.78%

SPY

• 1D: -0.31%
• 1M: 0.09%
• YTD: 9.74%
• 6M: 9.27%
• 1Y: 26.65%
• 3Y*: 21.27%
• 5Y*: 13.51%
• 10Y*: 15.70%

*Multi-year figures are annualized to reflect compound growth (CAGR)

NASDX vs. SPY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
NASDX Shelton Capital Management Nasdaq-100 Index Fund Direct Shares	20.41%	21.00%	36.91%	54.69%	-32.57%	27.32%	48.59%	38.22%	-1.21%	31.27%
SPY State Street SPDR S&P 500 ETF	9.74%	17.72%	24.89%	26.18%	-18.18%	28.73%	18.33%	31.22%	-4.57%	21.71%

Correlation

The correlation between NASDX and SPY is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.93
Correlation (3Y) Calculated over the trailing 3-year period	0.93
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (10Y) Calculated over the trailing 10-year period	0.91
Correlation (All Time) Calculated using the full available price history since Jan 18, 2000	0.87

The correlation between NASDX and SPY has been stable across timeframes, ranging from 0.87 to 0.94 - a consistent structural relationship.

Return for Risk

NASDX vs. SPY — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

NASDX

NASDX Risk / Return Rank: 70
NASDX Sharpe Ratio Rank: 74
NASDX Sortino Ratio Rank: 61
NASDX Omega Ratio Rank: 63
NASDX Calmar Ratio Rank: 80
NASDX Martin Ratio Rank: 72

SPY

SPY Risk / Return Rank: 68
SPY Sharpe Ratio Rank: 69
SPY Sortino Ratio Rank: 66
SPY Omega Ratio Rank: 68
SPY Calmar Ratio Rank: 63
SPY Martin Ratio Rank: 74

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

NASDX vs. SPY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Shelton Capital Management Nasdaq-100 Index Fund Direct Shares (NASDX) and State Street SPDR S&P 500 ETF (SPY). 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.

	NASDX	SPY	Difference
Sharpe ratio: Return per unit of total volatility	2.30	2.16	+0.14
Sortino ratio: Return per unit of downside risk	2.99	2.91	+0.08
Omega ratio: Gain probability vs. loss probability	1.40	1.39	+0.01
Calmar ratio: Return relative to maximum drawdown	3.42	3.01	+0.41
Martin ratio: Return relative to average drawdown	12.86	13.54	-0.67

NASDX vs. SPY - Sharpe Ratio Comparison

The current NASDX Sharpe Ratio is 2.30, which is comparable to the SPY Sharpe Ratio of 2.16. The chart below compares the historical Sharpe Ratios of NASDX and SPY, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

NASDX vs. SPY - Drawdown Comparison

The maximum NASDX drawdown since its inception was -83.16%, which is greater than SPY's maximum drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for NASDX and SPY.

Drawdown Indicators

	NASDX	SPY	Difference
Max Drawdown Largest peak-to-trough decline	-83.16%	-55.19%	-27.97%
Max Drawdown (1Y) Largest decline over 1 year	-11.90%	-8.88%	-3.02%
Max Drawdown (3Y) Largest decline over 3 years	-22.71%	-18.76%	-3.95%
Max Drawdown (5Y) Largest decline over 5 years	-35.33%	-24.50%	-10.83%
Max Drawdown (10Y) Largest decline over 10 years	-35.33%	-33.72%	-1.61%
Current Drawdown Current decline from peak	-0.80%	-1.75%	+0.95%
Average Drawdown Average peak-to-trough decline	-34.31%	-9.04%	-25.27%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.16%	1.97%	+1.19%

Volatility

NASDX vs. SPY - Volatility Comparison

Shelton Capital Management Nasdaq-100 Index Fund Direct Shares (NASDX) has a higher volatility of 8.48% compared to State Street SPDR S&P 500 ETF (SPY) at 4.64%. This indicates that NASDX's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	NASDX	SPY	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.48%	4.64%	+3.84%
Volatility (6M) Calculated over the trailing 6-month period	14.35%	9.75%	+4.60%
Volatility (1Y) Calculated over the trailing 1-year period	17.71%	12.43%	+5.28%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.29%	17.14%	+6.15%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.80%	17.99%	+4.81%

NASDX vs. SPY - Expense Ratio Comparison

NASDX has a 0.63% expense ratio, which is higher than SPY's 0.09% expense ratio.

Dividends

NASDX vs. SPY - Dividend Comparison

NASDX's dividend yield for the trailing twelve months is around 3.01%, more than SPY's 1.01% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
NASDX Shelton Capital Management Nasdaq-100 Index Fund Direct Shares	3.01%	3.76%	16.95%	7.61%	3.75%	2.59%	1.28%	7.09%	2.47%	1.65%	0.75%	0.85%
SPY State Street SPDR S&P 500 ETF	1.01%	1.07%	1.21%	1.40%	1.65%	1.20%	1.52%	1.75%	2.04%	1.80%	2.03%	2.06%

Frequently Asked Questions

Can I hold both NASDX and SPY in my portfolio?

With a correlation of 0.93, NASDX and SPY move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, NASDX or SPY?

NASDX has higher volatility (8.48%) compared to SPY (4.64%). In terms of maximum drawdown, NASDX dropped -83.16% vs SPY's -55.19%.

Which has better risk-adjusted returns?

NASDX currently has the higher Sharpe Ratio (2.30 vs 2.16), 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.