IAK vs. IYF

Last updated Jun 4, 2026

IAK (iShares U.S. Insurance ETF) and IYF (iShares U.S. Financials ETF) are both Financials Equities funds from iShares - IAK tracks the Dow Jones U.S. Select Insurance Index while IYF tracks the Dow Jones U.S. Financials Index. Both are passively managed. Over the past 10 years, IAK returned 11.66%/yr vs 12.56%/yr for IYF. Their correlation of 0.85 suggests significant overlap in exposure. IAK charges 0.43%/yr vs 0.42%/yr for IYF.

Performance

IAK vs. IYF - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares U.S. Insurance ETF (IAK) and iShares U.S. Financials ETF (IYF). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IAK achieves a -4.56% return, which is significantly higher than IYF's -5.20% return. Over the past 10 years, IAK has underperformed IYF with an annualized return of 11.66%, while IYF has yielded a comparatively higher 12.56% annualized return.

IAK

• 1D: -0.88%
• 1M: -2.27%
• YTD: -4.56%
• 6M: -1.81%
• 1Y: -4.16%
• 3Y*: 16.73%
• 5Y*: 11.50%
• 10Y*: 11.66%

IYF

• 1D: -1.13%
• 1M: -1.00%
• YTD: -5.20%
• 6M: -3.00%
• 1Y: 5.96%
• 3Y*: 20.58%
• 5Y*: 9.52%
• 10Y*: 12.56%

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

IAK vs. IYF - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
IAK iShares U.S. Insurance ETF	-4.56%	9.50%	28.25%	11.28%	11.33%	26.84%	-2.86%	25.94%	-11.48%	14.18%
IYF iShares U.S. Financials ETF	-5.20%	18.25%	31.30%	15.32%	-11.33%	31.60%	-1.00%	31.86%	-9.39%	19.58%

Correlation

The correlation between IAK and IYF is 0.59, 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	0.59
Correlation (3Y) Calculated over the trailing 3-year period	0.69
Correlation (5Y) Calculated over the trailing 5-year period	0.78
Correlation (10Y) Calculated over the trailing 10-year period	0.82
Correlation (All Time) Calculated using the full available price history since May 8, 2006	0.85

Over the past year, the correlation between IAK and IYF has dropped to 0.59 - well below their long-term average of 0.85, suggesting their price drivers have been diverging.

IAK vs. IYF - Sectors Allocation Comparison

Sectors	IAK	IYF
Financial Services	99.5%	99.0%
Healthcare	0.5%	-
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Industrials	-	-
Real Estate	-	0.7%
Technology	-	0.3%
Utilities	-	-

Return for Risk

IAK vs. IYF — Risk / Return Rank

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

IAK

IAK Risk / Return Rank: 5
IAK Sharpe Ratio Rank: 6
IAK Sortino Ratio Rank: 6
IAK Omega Ratio Rank: 5
IAK Calmar Ratio Rank: 4
IAK Martin Ratio Rank: 3

IYF

IYF Risk / Return Rank: 14
IYF Sharpe Ratio Rank: 15
IYF Sortino Ratio Rank: 14
IYF Omega Ratio Rank: 14
IYF Calmar Ratio Rank: 14
IYF Martin Ratio Rank: 14

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.

IAK vs. IYF - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Insurance ETF (IAK) and iShares U.S. Financials ETF (IYF). 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.

	IAK	IYF	Difference
Sharpe ratio: Return per unit of total volatility	-0.28	0.42	-0.70
Sortino ratio: Return per unit of downside risk	-0.29	0.65	-0.94
Omega ratio: Gain probability vs. loss probability	0.97	1.08	-0.11
Calmar ratio: Return relative to maximum drawdown	-0.55	0.43	-0.98
Martin ratio: Return relative to average drawdown	-1.14	1.18	-2.32
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IAK vs. IYF - Sharpe Ratio Comparison

The current IAK Sharpe Ratio is -0.28, which is lower than the IYF Sharpe Ratio of 0.42. The chart below compares the historical Sharpe Ratios of IAK and IYF, 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

	IAK	IYF	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.28	0.42	-0.70
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.64	0.50	+0.14
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.56	0.60	-0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	0.22	+0.04

Drawdowns

IAK vs. IYF - Drawdown Comparison

The maximum IAK drawdown since its inception was -77.38%, roughly equal to the maximum IYF drawdown of -79.09%. Use the drawdown chart below to compare losses from any high point for IAK and IYF.

Drawdown Indicators

	IAK	IYF	Difference
Max Drawdown Largest peak-to-trough decline	-77.38%	-79.09%	+1.71%
Max Drawdown (1Y) Largest decline over 1 year	-7.62%	-13.88%	+6.26%
Max Drawdown (3Y) Largest decline over 3 years	-11.58%	-16.60%	+5.02%
Max Drawdown (5Y) Largest decline over 5 years	-14.76%	-25.06%	+10.30%
Max Drawdown (10Y) Largest decline over 10 years	-44.95%	-42.57%	-2.38%
Current Drawdown Current decline from peak	-5.82%	-8.10%	+2.28%
Average Drawdown Average peak-to-trough decline	-16.13%	-17.61%	+1.48%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.96%	5.06%	-1.10%

Volatility

IAK vs. IYF - Volatility Comparison

iShares U.S. Insurance ETF (IAK) has a higher volatility of 3.82% compared to iShares U.S. Financials ETF (IYF) at 3.41%. This indicates that IAK's price experiences larger fluctuations and is considered to be riskier than IYF based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IAK	IYF	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.82%	3.41%	+0.41%
Volatility (6M) Calculated over the trailing 6-month period	9.98%	10.80%	-0.82%
Volatility (1Y) Calculated over the trailing 1-year period	14.77%	14.34%	+0.43%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.07%	19.00%	-0.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.89%	20.89%	0.00%

IAK vs. IYF - Expense Ratio Comparison

IAK has a 0.43% expense ratio, which is higher than IYF's 0.42% expense ratio.

Dividends

IAK vs. IYF - Dividend Comparison

IAK's dividend yield for the trailing twelve months is around 2.76%, more than IYF's 1.57% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IAK iShares U.S. Insurance ETF	2.76%	1.69%	1.49%	1.44%	1.69%	2.26%	2.07%	1.84%	2.33%	1.62%	1.68%	1.62%
IYF iShares U.S. Financials ETF	1.57%	1.32%	1.29%	1.67%	1.86%	1.27%	1.72%	1.64%	1.90%	1.46%	1.67%	1.66%

Frequently Asked Questions

Can I hold both IAK and IYF in my portfolio?

IAK and IYF have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IAK or IYF?

IAK has higher volatility (3.82%) compared to IYF (3.41%). In terms of maximum drawdown, IAK dropped -77.38% vs IYF's -79.09%.

Which ETF is better, IAK or IYF?

On 10-year performance, IYF leads with 12.56% vs 11.66% for IAK. On fees, IYF is cheaper at 0.42% per year. On volatility, IYF has been the lower-risk option at 3.41%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IAK or IYF?

Over the 10-year period, IYF has performed better with a 12.56% return vs 11.66%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IAK or IYF?

IYF is cheaper with a 0.42% expense ratio, compared with 0.43% for IAK.

Which ETF pays a higher dividend yield, IAK or IYF?

IAK has the higher dividend yield at 2.76%, compared with 1.57% for IYF.

What is the main difference between IAK and IYF?

IAK tracks Dow Jones U.S. Select Insurance Index, while IYF tracks Dow Jones U.S. Financials Index. Their fees differ too: 0.43% for IAK and 0.42% for IYF.

Which has better risk-adjusted returns?

IYF currently has the higher Sharpe Ratio (0.42 vs -0.28), 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.