TEK vs. BAI

Last updated Jun 23, 2026

TEK (iShares Technology Opportunities Active ETF) and BAI (iShares A.I. Innovation and Tech Active ETF) are both Technology Equities funds from iShares. Both are actively managed. Over the past year, TEK returned 66.47% vs 104.79% for BAI. With a 0.96 correlation, they move nearly in lockstep. TEK charges 0.75%/yr vs 0.55%/yr for BAI.

Performance

TEK vs. BAI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Technology Opportunities Active ETF (TEK) and iShares A.I. Innovation and Tech Active ETF (BAI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TEK achieves a 44.09% return, which is significantly lower than BAI's 62.85% return.

TEK

• 1D: 0.05%
• 1M: 9.52%
• YTD: 44.09%
• 6M: 43.89%
• 1Y: 66.47%
• 3Y*: —
• 5Y*: —
• 10Y*: —

BAI

• 1D: 1.94%
• 1M: 13.43%
• YTD: 62.85%
• 6M: 60.92%
• 1Y: 104.79%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

TEK vs. BAI - Yearly Performance Comparison

	2026 (YTD)	2025	2024
TEK iShares Technology Opportunities Active ETF	44.09%	18.63%	2.63%
BAI iShares A.I. Innovation and Tech Active ETF	62.85%	25.22%	8.89%

Correlation

The correlation between TEK and BAI is 0.95, 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	0.95
Correlation (All Time) Calculated using the full available price history since Oct 22, 2024	0.96

The correlation between TEK and BAI has been stable across timeframes, ranging from 0.95 to 0.96 - a consistent structural relationship.

TEK vs. BAI - Sectors Allocation Comparison

Sectors	TEK	BAI
Technology	85.9%	88.8%
Communication Services	6.1%	3.9%
Consumer Cyclical	4.0%	2.6%
Industrials	2.8%	4.6%
Basic Materials	0.9%	-
Financial Services	0.4%	-
Consumer Defensive	-	-
Energy	-	-
Healthcare	-	0.7%
Real Estate	-	-
Utilities	-	-

Return for Risk

TEK vs. BAI — Risk / Return Rank

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

TEK

TEK Risk / Return Rank: 68
TEK Sharpe Ratio Rank: 76
TEK Sortino Ratio Rank: 66
TEK Omega Ratio Rank: 68
TEK Calmar Ratio Rank: 71
TEK Martin Ratio Rank: 58

BAI

BAI Risk / Return Rank: 84
BAI Sharpe Ratio Rank: 90
BAI Sortino Ratio Rank: 76
BAI Omega Ratio Rank: 78
BAI Calmar Ratio Rank: 94
BAI Martin Ratio Rank: 85

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.

TEK vs. BAI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Technology Opportunities Active ETF (TEK) and iShares A.I. Innovation and Tech Active ETF (BAI). 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.

	TEK	BAI	Difference
Sharpe ratio: Return per unit of total volatility	2.33	2.90	-0.56
Sortino ratio: Return per unit of downside risk	2.91	3.22	-0.31
Omega ratio: Gain probability vs. loss probability	1.39	1.44	-0.05
Calmar ratio: Return relative to maximum drawdown	3.46	6.50	-3.03
Martin ratio: Return relative to average drawdown	9.84	17.20	-7.35

TEK vs. BAI - Sharpe Ratio Comparison

The current TEK Sharpe Ratio is 2.33, which is comparable to the BAI Sharpe Ratio of 2.90. The chart below compares the historical Sharpe Ratios of TEK and BAI, 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

TEK vs. BAI - Drawdown Comparison

The maximum TEK drawdown since its inception was -28.24%, smaller than the maximum BAI drawdown of -34.09%. Use the drawdown chart below to compare losses from any high point for TEK and BAI.

Drawdown Indicators

	TEK	BAI	Difference
Max Drawdown Largest peak-to-trough decline	-28.24%	-34.09%	+5.85%
Max Drawdown (1Y) Largest decline over 1 year	-19.29%	-16.22%	-3.07%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-5.87%	-6.87%	+1.00%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.78%	6.12%	+0.66%

Volatility

TEK vs. BAI - Volatility Comparison

The current volatility for iShares Technology Opportunities Active ETF (TEK) is 14.38%, while iShares A.I. Innovation and Tech Active ETF (BAI) has a volatility of 18.06%. This indicates that TEK experiences smaller price fluctuations and is considered to be less risky than BAI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TEK	BAI	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.38%	18.06%	-3.68%
Volatility (6M) Calculated over the trailing 6-month period	24.31%	30.25%	-5.94%
Volatility (1Y) Calculated over the trailing 1-year period	28.69%	36.45%	-7.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	30.47%	36.90%	-6.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.47%	36.90%	-6.43%

TEK vs. BAI - Expense Ratio Comparison

TEK has a 0.75% expense ratio, which is higher than BAI's 0.55% expense ratio.

Dividends

TEK vs. BAI - Dividend Comparison

TEK's dividend yield for the trailing twelve months is around 1.10%, which matches BAI's 1.09% yield.

Position	TTM	2025
BAI iShares A.I. Innovation and Tech Active ETF	1.09%	1.80%
TEK iShares Technology Opportunities Active ETF	1.10%	1.62%

Frequently Asked Questions

Can I hold both TEK and BAI in my portfolio?

With a correlation of 0.95, TEK and BAI move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, TEK or BAI?

BAI has higher volatility (18.06%) compared to TEK (14.38%). In terms of maximum drawdown, TEK dropped -28.24% vs BAI's -34.09%.

Which ETF is better, TEK or BAI?

On 1-year performance, BAI leads with 104.79% vs 66.47% for TEK. On fees, BAI is cheaper at 0.55% per year. On volatility, TEK has been the lower-risk option at 14.38%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, TEK or BAI?

Over the 1-year period, BAI has performed better with a 104.79% return vs 66.47%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, TEK or BAI?

BAI is cheaper with a 0.55% expense ratio, compared with 0.75% for TEK.

Which ETF pays a higher dividend yield, TEK or BAI?

TEK and BAI have nearly identical dividend yields, around 1.10%.

What is the main difference between TEK and BAI?

Their fees differ too: 0.75% for TEK and 0.55% for BAI.

Which has better risk-adjusted returns?

BAI currently has the higher Sharpe Ratio (2.90 vs 2.33), 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.