FGROX vs. NESIX

Last updated Jun 23, 2026

FGROX (Emerald Growth Fund Institutional Class) and NESIX (Needham Small Cap Growth Fund Institutional) are both Small Cap Growth Equities funds. Over the past 5 years, FGROX returned 13.82%/yr vs 10.69%/yr for NESIX. Their correlation of 0.83 suggests significant overlap in exposure. FGROX charges 0.78%/yr vs 1.18%/yr for NESIX.

Performance

FGROX vs. NESIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Emerald Growth Fund Institutional Class (FGROX) and Needham Small Cap Growth Fund Institutional (NESIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FGROX achieves a 33.40% return, which is significantly lower than NESIX's 84.62% return.

FGROX

• 1D: 3.43%
• 1M: 8.90%
• YTD: 33.40%
• 6M: 28.28%
• 1Y: 74.67%
• 3Y*: 31.18%
• 5Y*: 13.82%
• 10Y*: 16.46%

NESIX

• 1D: 3.45%
• 1M: 10.97%
• YTD: 84.62%
• 6M: 79.78%
• 1Y: 126.23%
• 3Y*: 33.61%
• 5Y*: 10.69%
• 10Y*: —

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

FGROX vs. NESIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FGROX Emerald Growth Fund Institutional Class	33.40%	31.85%	20.04%	19.04%	-24.42%	3.91%	38.92%	28.71%	-11.85%	28.11%
NESIX Needham Small Cap Growth Fund Institutional	84.62%	11.16%	13.47%	5.85%	-29.71%	11.36%	73.06%	55.28%	-4.87%	12.63%

Correlation

The correlation between FGROX and NESIX is 0.85, 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	0.85
Correlation (3Y) Calculated over the trailing 3-year period	0.85
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (All Time) Calculated using the full available price history since Jan 3, 2017	0.83

The correlation between FGROX and NESIX has been stable across timeframes, ranging from 0.83 to 0.86 - a consistent structural relationship.

Return for Risk

FGROX vs. NESIX — Risk / Return Rank

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

FGROX

FGROX Risk / Return Rank: 88
FGROX Sharpe Ratio Rank: 92
FGROX Sortino Ratio Rank: 81
FGROX Omega Ratio Rank: 75
FGROX Calmar Ratio Rank: 95
FGROX Martin Ratio Rank: 96

NESIX

NESIX Risk / Return Rank: 95
NESIX Sharpe Ratio Rank: 99
NESIX Sortino Ratio Rank: 92
NESIX Omega Ratio Rank: 87
NESIX Calmar Ratio Rank: 98
NESIX Martin Ratio Rank: 98

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.

FGROX vs. NESIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Emerald Growth Fund Institutional Class (FGROX) and Needham Small Cap Growth Fund Institutional (NESIX). 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.

	FGROX	NESIX	Difference
Sharpe ratio: Return per unit of total volatility	2.88	3.96	-1.09
Sortino ratio: Return per unit of downside risk	3.53	4.30	-0.77
Omega ratio: Gain probability vs. loss probability	1.45	1.56	-0.11
Calmar ratio: Return relative to maximum drawdown	5.31	7.25	-1.94
Martin ratio: Return relative to average drawdown	22.16	29.54	-7.37

FGROX vs. NESIX - Sharpe Ratio Comparison

The current FGROX Sharpe Ratio is 2.88, which is comparable to the NESIX Sharpe Ratio of 3.96. The chart below compares the historical Sharpe Ratios of FGROX and NESIX, 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

FGROX vs. NESIX - Drawdown Comparison

The maximum FGROX drawdown since its inception was -41.48%, smaller than the maximum NESIX drawdown of -49.61%. Use the drawdown chart below to compare losses from any high point for FGROX and NESIX.

Drawdown Indicators

	FGROX	NESIX	Difference
Max Drawdown Largest peak-to-trough decline	-41.48%	-49.61%	+8.13%
Max Drawdown (1Y) Largest decline over 1 year	-14.36%	-17.12%	+2.76%
Max Drawdown (3Y) Largest decline over 3 years	-28.61%	-35.21%	+6.60%
Max Drawdown (5Y) Largest decline over 5 years	-38.52%	-49.61%	+11.09%
Max Drawdown (10Y) Largest decline over 10 years	-41.48%	—	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-10.23%	-14.93%	+4.70%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.42%	4.19%	-0.77%

Volatility

FGROX vs. NESIX - Volatility Comparison

The current volatility for Emerald Growth Fund Institutional Class (FGROX) is 9.76%, while Needham Small Cap Growth Fund Institutional (NESIX) has a volatility of 12.03%. This indicates that FGROX experiences smaller price fluctuations and is considered to be less risky than NESIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FGROX	NESIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.76%	12.03%	-2.27%
Volatility (6M) Calculated over the trailing 6-month period	20.51%	22.42%	-1.91%
Volatility (1Y) Calculated over the trailing 1-year period	26.49%	31.32%	-4.83%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.84%	29.58%	-3.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.31%	26.57%	-1.26%

FGROX vs. NESIX - Expense Ratio Comparison

FGROX has a 0.78% expense ratio, which is lower than NESIX's 1.18% expense ratio.

Dividends

FGROX vs. NESIX - Dividend Comparison

FGROX's dividend yield for the trailing twelve months is around 8.54%, while NESIX has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FGROX Emerald Growth Fund Institutional Class	8.54%	11.39%	13.92%	5.91%	8.13%	17.87%	8.04%	1.38%	11.36%	0.00%
NESIX Needham Small Cap Growth Fund Institutional	0.00%	0.00%	0.00%	0.00%	3.93%	23.92%	13.26%	8.25%	21.96%	8.89%

Frequently Asked Questions

Can I hold both FGROX and NESIX in my portfolio?

FGROX and NESIX have a correlation of 0.85, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FGROX or NESIX?

NESIX has higher volatility (12.03%) compared to FGROX (9.76%). In terms of maximum drawdown, FGROX dropped -41.48% vs NESIX's -49.61%.

Which has better risk-adjusted returns?

NESIX currently has the higher Sharpe Ratio (3.96 vs 2.88), 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.