CALF vs. IWC

Last updated Jun 4, 2026

CALF (Pacer US Small Cap Cash Cows 100 ETF) and IWC (iShares Micro-Cap ETF) are both Small Cap Blend Equities funds - CALF tracks the Pacer US Small Cap Cash Cows Index while IWC tracks the Russell Microcap Index. Both are passively managed. Over the past 5 years, CALF returned 4.12%/yr vs 5.45%/yr for IWC. Their correlation of 0.82 suggests significant overlap in exposure. CALF charges 0.59%/yr vs 0.60%/yr for IWC.

Performance

CALF vs. IWC - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Pacer US Small Cap Cash Cows 100 ETF (CALF) and iShares Micro-Cap ETF (IWC). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CALF achieves a 13.34% return, which is significantly lower than IWC's 18.97% return.

CALF

• 1D: -1.12%
• 1M: 4.91%
• YTD: 13.34%
• 6M: 12.53%
• 1Y: 30.24%
• 3Y*: 10.69%
• 5Y*: 4.12%
• 10Y*: —

IWC

• 1D: -2.09%
• 1M: 2.88%
• YTD: 18.97%
• 6M: 18.63%
• 1Y: 55.24%
• 3Y*: 21.73%
• 5Y*: 5.45%
• 10Y*: 11.35%

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

CALF vs. IWC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CALF Pacer US Small Cap Cash Cows 100 ETF	13.34%	2.33%	-7.41%	35.43%	-15.20%	40.68%	16.55%	18.18%	-10.06%	5.78%
IWC iShares Micro-Cap ETF	18.97%	22.45%	13.63%	8.99%	-21.93%	18.67%	20.88%	22.20%	-13.13%	9.88%

Correlation

The correlation between CALF and IWC is 0.62, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.62
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.82
Correlation (All Time) Calculated using the full available price history since Jun 20, 2017	0.82

The correlation between CALF and IWC shifts across timeframes, from 0.62 (1 year) to 0.82 (5 years), reflecting how their relationship changes across market environments.

CALF vs. IWC - Sectors Allocation Comparison

Sectors	CALF	IWC
Technology	29.7%	18.4%
Consumer Cyclical	28.3%	5.3%
Energy	10.3%	4.7%
Healthcare	9.4%	28.1%
Communication Services	8.8%	1.8%
Industrials	5.9%	13.3%
Consumer Defensive	4.3%	1.9%
Real Estate	1.6%	3.5%
Basic Materials	1.6%	4.4%
Financial Services	0.2%	18.1%
Utilities	-	0.6%

Return for Risk

CALF vs. IWC — Risk / Return Rank

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

CALF

CALF Risk / Return Rank: 66
CALF Sharpe Ratio Rank: 56
CALF Sortino Ratio Rank: 58
CALF Omega Ratio Rank: 54
CALF Calmar Ratio Rank: 86
CALF Martin Ratio Rank: 73

IWC

IWC Risk / Return Rank: 71
IWC Sharpe Ratio Rank: 71
IWC Sortino Ratio Rank: 66
IWC Omega Ratio Rank: 59
IWC Calmar Ratio Rank: 83
IWC Martin Ratio Rank: 76

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.

CALF vs. IWC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Pacer US Small Cap Cash Cows 100 ETF (CALF) and iShares Micro-Cap ETF (IWC). 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.

	CALF	IWC	Difference
Sharpe ratio: Return per unit of total volatility	1.93	2.36	-0.43
Sortino ratio: Return per unit of downside risk	2.82	3.10	-0.28
Omega ratio: Gain probability vs. loss probability	1.34	1.37	-0.02
Calmar ratio: Return relative to maximum drawdown	4.94	4.47	+0.47
Martin ratio: Return relative to average drawdown	14.08	14.76	-0.68
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CALF vs. IWC - Sharpe Ratio Comparison

The current CALF Sharpe Ratio is 1.93, which is comparable to the IWC Sharpe Ratio of 2.36. The chart below compares the historical Sharpe Ratios of CALF and IWC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	CALF	IWC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.93	2.36	-0.43
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.18	0.22	-0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.47	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.37	0.31	+0.06

Drawdowns

CALF vs. IWC - Drawdown Comparison

The maximum CALF drawdown since its inception was -47.58%, smaller than the maximum IWC drawdown of -64.61%. Use the drawdown chart below to compare losses from any high point for CALF and IWC.

Drawdown Indicators

	CALF	IWC	Difference
Max Drawdown Largest peak-to-trough decline	-47.58%	-64.61%	+17.03%
Max Drawdown (1Y) Largest decline over 1 year	-6.15%	-12.43%	+6.28%
Max Drawdown (3Y) Largest decline over 3 years	-34.22%	-29.46%	-4.76%
Max Drawdown (5Y) Largest decline over 5 years	-34.22%	-40.68%	+6.46%
Max Drawdown (10Y) Largest decline over 10 years	—	-47.21%	—
Current Drawdown Current decline from peak	-1.95%	-2.90%	+0.95%
Average Drawdown Average peak-to-trough decline	-10.74%	-15.28%	+4.54%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.15%	3.75%	-1.60%

Volatility

CALF vs. IWC - Volatility Comparison

The current volatility for Pacer US Small Cap Cash Cows 100 ETF (CALF) is 4.92%, while iShares Micro-Cap ETF (IWC) has a volatility of 7.29%. This indicates that CALF experiences smaller price fluctuations and is considered to be less risky than IWC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CALF	IWC	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.92%	7.29%	-2.37%
Volatility (6M) Calculated over the trailing 6-month period	10.47%	17.26%	-6.79%
Volatility (1Y) Calculated over the trailing 1-year period	15.84%	23.63%	-7.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.44%	24.42%	-0.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.02%	24.42%	+1.60%

CALF vs. IWC - Expense Ratio Comparison

CALF has a 0.59% expense ratio, which is lower than IWC's 0.60% expense ratio.

Dividends

CALF vs. IWC - Dividend Comparison

CALF's dividend yield for the trailing twelve months is around 1.28%, more than IWC's 0.91% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CALF Pacer US Small Cap Cash Cows 100 ETF	1.28%	1.43%	1.07%	1.18%	0.85%	2.63%	0.82%	0.99%	1.39%	0.70%	0.00%	0.00%
IWC iShares Micro-Cap ETF	0.91%	1.10%	1.06%	1.17%	1.18%	0.78%	0.98%	1.19%	1.01%	1.09%	1.16%	1.49%

Frequently Asked Questions

Can I hold both CALF and IWC in my portfolio?

CALF and IWC have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CALF or IWC?

IWC has higher volatility (7.29%) compared to CALF (4.92%). In terms of maximum drawdown, CALF dropped -47.58% vs IWC's -64.61%.

Which ETF is better, CALF or IWC?

On 5-year performance, IWC leads with 5.45% vs 4.12% for CALF. On fees, CALF is cheaper at 0.59% per year. On volatility, CALF has been the lower-risk option at 4.92%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CALF or IWC?

Over the 5-year period, IWC has performed better with a 5.45% return vs 4.12%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CALF or IWC?

CALF is cheaper with a 0.59% expense ratio, compared with 0.60% for IWC.

Which ETF pays a higher dividend yield, CALF or IWC?

CALF has the higher dividend yield at 1.28%, compared with 0.91% for IWC.

What is the main difference between CALF and IWC?

CALF tracks Pacer US Small Cap Cash Cows Index, while IWC tracks Russell Microcap Index. They also come from different issuers: Pacer and iShares. Their fees differ too: 0.59% for CALF and 0.60% for IWC.

Which has better risk-adjusted returns?

IWC currently has the higher Sharpe Ratio (2.36 vs 1.93), 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.