IBB vs. IDNA

Last updated Jun 4, 2026

IBB (iShares Nasdaq Biotechnology ETF) and IDNA (iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund) are both Health & Biotech Equities funds from iShares - IBB tracks the NASDAQ Biotechnology Index while IDNA tracks the NYSE FactSet Global Genomics and Immuno Biopharma Index. Both are passively managed. Over the past 5 years, IBB returned 2.10%/yr vs -8.42%/yr for IDNA. Their correlation of 0.90 suggests significant overlap in exposure. Both charge a 0.47% expense ratio.

Performance

IBB vs. IDNA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Nasdaq Biotechnology ETF (IBB) and iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund (IDNA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IBB achieves a -0.68% return, which is significantly lower than IDNA's 10.31% return.

IBB

• 1D: 1.97%
• 1M: -1.56%
• YTD: -0.68%
• 6M: -2.57%
• 1Y: 34.50%
• 3Y*: 9.40%
• 5Y*: 2.10%
• 10Y*: 6.23%

IDNA

• 1D: 0.73%
• 1M: -2.56%
• YTD: 10.31%
• 6M: 8.52%
• 1Y: 40.87%
• 3Y*: 6.74%
• 5Y*: -8.42%
• 10Y*: —

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

IBB vs. IDNA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
IBB iShares Nasdaq Biotechnology ETF	-0.68%	27.98%	-2.41%	3.76%	-13.69%	0.95%	26.01%	16.05%
IDNA iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund	10.31%	17.26%	-0.72%	-7.63%	-42.28%	-3.98%	54.30%	20.83%

Correlation

The correlation between IBB and IDNA is 0.89, 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	0.89
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.90
Correlation (All Time) Calculated using the full available price history since Jun 14, 2019	0.90

The correlation between IBB and IDNA has been stable across timeframes, ranging from 0.88 to 0.90 - a consistent structural relationship.

IBB vs. IDNA - Sectors Allocation Comparison

Sectors	IBB	IDNA
Healthcare	100.0%	97.8%
Basic Materials	-	-
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Industrials	-	0.4%
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

IBB vs. IDNA — Risk / Return Rank

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

IBB

IBB Risk / Return Rank: 56
IBB Sharpe Ratio Rank: 50
IBB Sortino Ratio Rank: 50
IBB Omega Ratio Rank: 46
IBB Calmar Ratio Rank: 71
IBB Martin Ratio Rank: 62

IDNA

IDNA Risk / Return Rank: 55
IDNA Sharpe Ratio Rank: 48
IDNA Sortino Ratio Rank: 49
IDNA Omega Ratio Rank: 42
IDNA Calmar Ratio Rank: 76
IDNA Martin Ratio Rank: 61

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.

IBB vs. IDNA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Nasdaq Biotechnology ETF (IBB) and iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund (IDNA). 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.

	IBB	IDNA	Difference
Sharpe ratio Return per unit of total volatility	1.74	1.68	+0.07
Sortino ratio Return per unit of downside risk	2.50	2.44	+0.07
Omega ratio Gain probability vs. loss probability	1.30	1.27	+0.02
Calmar ratio Return relative to maximum drawdown	3.60	3.85	-0.25
Martin ratio Return relative to average drawdown	11.43	10.98	+0.45
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IBB vs. IDNA - Sharpe Ratio Comparison

The current IBB Sharpe Ratio is 1.74, which is comparable to the IDNA Sharpe Ratio of 1.68. The chart below compares the historical Sharpe Ratios of IBB and IDNA, 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

	IBB	IDNA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.74	1.68	+0.07
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.10	-0.30	+0.39
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.27	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	0.10	+0.16

Drawdowns

IBB vs. IDNA - Drawdown Comparison

The maximum IBB drawdown since its inception was -62.85%, smaller than the maximum IDNA drawdown of -68.26%. Use the drawdown chart below to compare losses from any high point for IBB and IDNA.

Drawdown Indicators

	IBB	IDNA	Difference
Max Drawdown Largest peak-to-trough decline	-62.85%	-68.26%	+5.41%
Max Drawdown (1Y) Largest decline over 1 year	-9.63%	-10.66%	+1.03%
Max Drawdown (3Y) Largest decline over 3 years	-24.85%	-29.73%	+4.88%
Max Drawdown (5Y) Largest decline over 5 years	-39.82%	-68.26%	+28.44%
Max Drawdown (10Y) Largest decline over 10 years	-39.82%	—	—
Current Drawdown Current decline from peak	-5.64%	-45.61%	+39.97%
Average Drawdown Average peak-to-trough decline	-21.18%	-36.24%	+15.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.03%	3.73%	-0.70%

Volatility

IBB vs. IDNA - Volatility Comparison

iShares Nasdaq Biotechnology ETF (IBB) and iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund (IDNA) have volatilities of 6.86% and 7.18%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IBB	IDNA	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.86%	7.18%	-0.32%
Volatility (6M) Calculated over the trailing 6-month period	15.38%	17.98%	-2.60%
Volatility (1Y) Calculated over the trailing 1-year period	19.89%	24.48%	-4.59%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	21.99%	28.42%	-6.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.22%	29.53%	-6.31%

IBB vs. IDNA - Expense Ratio Comparison

Both IBB and IDNA have an expense ratio of 0.47%.

Dividends

IBB vs. IDNA - Dividend Comparison

IBB's dividend yield for the trailing twelve months is around 0.23%, less than IDNA's 1.07% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IBB iShares Nasdaq Biotechnology ETF	0.23%	0.23%	0.29%	0.26%	0.31%	0.21%	0.21%	0.33%	0.20%	0.30%	0.19%	0.03%
IDNA iShares Genomics Immunology and Healthcare ETF Genomics Immunology and Healthcare Fund	1.07%	1.18%	0.98%	1.04%	0.54%	0.70%	0.26%	0.80%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IBB and IDNA in my portfolio?

IBB and IDNA have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IBB or IDNA?

IDNA has higher volatility (7.18%) compared to IBB (6.86%). In terms of maximum drawdown, IBB dropped -62.85% vs IDNA's -68.26%.

Which ETF is better, IBB or IDNA?

On 5-year performance, IBB leads with 2.10% vs -8.42% for IDNA. Both ETFs have the same 0.47% expense ratio. On volatility, IBB has been the lower-risk option at 6.86%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IBB or IDNA?

Over the 5-year period, IBB has performed better with a 2.10% return vs -8.42%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IBB or IDNA?

IBB and IDNA have the same expense ratio: 0.47% per year.

Which ETF pays a higher dividend yield, IBB or IDNA?

IDNA has the higher dividend yield at 1.07%, compared with 0.23% for IBB.

What is the main difference between IBB and IDNA?

IBB tracks NASDAQ Biotechnology Index, while IDNA tracks NYSE FactSet Global Genomics and Immuno Biopharma Index.

Which has better risk-adjusted returns?

IBB currently has the higher Sharpe Ratio (1.74 vs 1.68), 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.