CTSIX vs. NEAIX

Last updated Apr 2, 2026

Compare and contrast key facts about Calamos Timpani Small Cap Growth Fund (CTSIX) and Needham Aggressive Growth Fund Institutional Class (NEAIX).

CTSIX is managed by Calamos. It was launched on Mar 23, 2011. NEAIX is an actively managed fund by Needham. It was launched on Dec 30, 2016.

Performance

CTSIX vs. NEAIX - Performance Comparison

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

CTSIX vs. NEAIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
CTSIX Calamos Timpani Small Cap Growth Fund	0.55%	25.90%	44.34%	7.57%	-37.30%	9.12%	63.38%	1.20%
NEAIX Needham Aggressive Growth Fund Institutional Class	7.37%	26.99%	14.86%	38.37%	-27.02%	38.46%	52.49%	21.73%

Returns By Period

In the year-to-date period, CTSIX achieves a 0.55% return, which is significantly lower than NEAIX's 7.37% return.

CTSIX

• 1D: 5.59%
• 1M: -7.48%
• YTD: 0.55%
• 6M: 3.66%
• 1Y: 43.97%
• 3Y*: 23.09%
• 5Y*: 3.66%
• 10Y*: —

NEAIX

• 1D: -3.89%
• 1M: -11.55%
• YTD: 7.37%
• 6M: 9.68%
• 1Y: 54.55%
• 3Y*: 25.66%
• 5Y*: 15.35%
• 10Y*: —

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

CTSIX vs. NEAIX - Expense Ratio Comparison

CTSIX has a 1.05% expense ratio, which is lower than NEAIX's 1.20% expense ratio.

NEAIX

Needham Aggressive Growth Fund Institutional Class

CTSIX

Calamos Timpani Small Cap Growth Fund

Return for Risk

CTSIX vs. NEAIX — Risk / Return Rank

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

CTSIX

CTSIX Risk / Return Rank: 83
CTSIX Sharpe Ratio Rank: 78
CTSIX Sortino Ratio Rank: 78
CTSIX Omega Ratio Rank: 67
CTSIX Calmar Ratio Rank: 96
CTSIX Martin Ratio Rank: 95

NEAIX

NEAIX Risk / Return Rank: 91
NEAIX Sharpe Ratio Rank: 90
NEAIX Sortino Ratio Rank: 89
NEAIX Omega Ratio Rank: 84
NEAIX Calmar Ratio Rank: 96
NEAIX Martin Ratio Rank: 95

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.

CTSIX vs. NEAIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Timpani Small Cap Growth Fund (CTSIX) and Needham Aggressive Growth Fund Institutional Class (NEAIX). 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.

	CTSIX	NEAIX	Difference
Sharpe ratio Return per unit of total volatility	1.48	1.89	-0.41
Sortino ratio Return per unit of downside risk	2.07	2.45	-0.38
Omega ratio Gain probability vs. loss probability	1.27	1.34	-0.07
Calmar ratio Return relative to maximum drawdown	3.65	3.57	+0.08
Martin ratio Return relative to average drawdown	13.94	12.81	+1.13
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CTSIX vs. NEAIX - Sharpe Ratio Comparison

The current CTSIX Sharpe Ratio is 1.48, which is comparable to the NEAIX Sharpe Ratio of 1.89. The chart below compares the historical Sharpe Ratios of CTSIX and NEAIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	CTSIX	NEAIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.48	1.89	-0.41
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.13	0.64	-0.50
Sharpe Ratio (All Time) Calculated using the full available price history	0.42	0.72	-0.30

Correlation

The correlation between CTSIX and NEAIX is 0.85, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

CTSIX vs. NEAIX - Dividend Comparison

CTSIX has not paid dividends to shareholders, while NEAIX's dividend yield for the trailing twelve months is around 1.88%.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
CTSIX Calamos Timpani Small Cap Growth Fund	0.00%	0.00%	2.58%	0.00%	0.00%	0.00%	3.77%	4.95%	0.00%	0.00%
NEAIX Needham Aggressive Growth Fund Institutional Class	1.88%	2.01%	0.00%	0.00%	0.00%	6.84%	3.80%	10.42%	16.35%	5.14%

Drawdowns

CTSIX vs. NEAIX - Drawdown Comparison

The maximum CTSIX drawdown since its inception was -50.83%, which is greater than NEAIX's maximum drawdown of -35.93%. Use the drawdown chart below to compare losses from any high point for CTSIX and NEAIX.

Drawdown Indicators

	CTSIX	NEAIX	Difference
Max Drawdown Largest peak-to-trough decline	-50.83%	-35.93%	-14.90%
Max Drawdown (1Y) Largest decline over 1 year	-12.38%	-13.98%	+1.60%
Max Drawdown (5Y) Largest decline over 5 years	-50.60%	-35.93%	-14.67%
Current Drawdown Current decline from peak	-7.48%	-11.55%	+4.07%
Average Drawdown Average peak-to-trough decline	-21.12%	-8.73%	-12.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.24%	3.89%	-0.65%

Volatility

CTSIX vs. NEAIX - Volatility Comparison

Calamos Timpani Small Cap Growth Fund (CTSIX) has a higher volatility of 13.35% compared to Needham Aggressive Growth Fund Institutional Class (NEAIX) at 10.98%. This indicates that CTSIX's price experiences larger fluctuations and is considered to be riskier than NEAIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CTSIX	NEAIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	13.35%	10.98%	+2.37%
Volatility (6M) Calculated over the trailing 6-month period	21.82%	19.41%	+2.41%
Volatility (1Y) Calculated over the trailing 1-year period	29.67%	28.68%	+0.99%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.87%	24.28%	+3.59%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	29.76%	24.42%	+5.34%