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BAY vs TECB

Corgi Bay Area Based ETF

BAYCCboe

iShares U.S. Tech Breakthrough Multisector ETF

TECBANYSE Arca

Overlap

40.1%by weight

Expense ratio

BAY −0.10pt a year

BAY0.20%TECB0.30%

Avg volume · 30D

TECB 63.7×the volume

BAY147TECB9.36K

BAY vs TECB Performance

Jul 31, 2026 – Nov 2, 2026

−3.5%BAY+5.6%TECB

Jul 31, 2026 to Nov 2, 2026. BAY −3.5%. TECB +5.6%. Use the arrow keys to read each point.0%10%15%Jul 2026Sep 2026Nov 2026
Expense ratio
BAY 0.20%, better
TECB 0.30%
Fund size
BAY $2M
TECB $493M
1Y total return
BAY No data
TECB +16.9%
Yield (12M)
BAY No data
TECB 0.29%
Holdings
BAY 60
TECB 173
Avg volume (30D)
BAY 147 sh
TECB 9.36K sh, better
NAV per share
BAY $27.58
TECB $75.32
52W range

ETF.net Grade

BAY: Cost 90, Risk 54, Mission not scored, Tradability 14, Holdings 56, Durability 28. TECB: Cost 79, Risk 55, Mission 92, Tradability 72, Holdings 61, Durability 91.
Pillar letters and Scores for BAY, TECB, with each pillar’s weight
PillarBAYTECB
Cost30% weightA90HigherA79
Mission25% weightNot scoredA92
Risk15% weightC54B55Higher
Tradability15% weightF14A72Higher
Holdings10% weightB56B61Higher
Durability5% weightD28A91Higher

Rank among US Thematic funds

How we build Categories ›
Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

Same Category. BAY and TECB are both graded against the same 22 US Thematic funds, so their Grades compare head to head.

US Thematic⁠

Category · 22 funds
See all 22 ›

TECB ranks 2nd and BAY 11th of 22 funds in the US Thematic Category.

  1. Rank 1ALRNDNYLI U.S. Large Cap R&D Leaders ETFScore 76
  2. Rank 2ATECBiShares U.S. Tech Breakthrough Multisector ETFScore 71
  3. Rank 3BLOHARoundhill HALO ETFScore 66
  4. Rank 11CAKAFThe Frontier Economic FundScore 40
  5. Rank 11CBAYCorgi Bay Area Based ETFScore 40
  6. Rank 11CEYESCorgi Data & Surveillance ETFScore 40

Our read on each fund

ETF.net Research

BAYCCorgi Bay Area Based ETF

TECBAiShares U.S. Tech Breakthrough Multisector ETF

In short

BAY No data

TECB Five breakthroughs (AI and robotics, cloud and data, cybersecurity, genomics, fintech) in one iShares index fund, priced well under the typical US thematic ETF. Multisector by design, so healthcare and finance names sit beside the chip and software crowd.

Stated mandate

BAY No data

TECB TECB seeks to track an index of U.S. companies that may benefit from robotics and artificial intelligence, cloud and data technology, cybersecurity, genomics and immunology, and financial technology.

Why people hold it

BAY No data

  • TECB 0.30% a year, roughly half the median expense ratio in its US thematic peer group. With themes, cost is the one edge you keep no matter which breakthrough actually breaks through.
  • Roughly 170 stocks spread across five themes rather than a concentrated bet on one idea, so no single storyline carries the fund by itself.ishares.com
  • Rules pick the stocks, not a manager's mood: it follows the NYSE FactSet U.S. Tech Breakthrough Index and has tracked it tightly since the 2020 launch, among the cleaner builds in its thematic group.ishares.com

Worth knowing

BAY No data

  • TECB This is a growth-theme basket with no ballast. Five fast-moving innovation sleeves can swing harder than the broad market in both directions.
  • Volume is light next to the megacap tech giants. For quick in-and-out trades, the bid-ask spread can cost more than the fee does.
  • Cheap, but not the cheapest on the block: LRND charges 0.14% for a broad US R&D-leaders screen that overlaps some of the same territory.

Full BAY profile⁠

Full TECB profile⁠

BAY vs TECB Holdings

How BAY and TECB differ

Overlap by weight

40.1%

Shared holdings make up 59.0% of BAY and 43.8% of TECB.

Level by level

  • Holdings26 in both40.1%
  • Sector10 Sectors88.8%
  • Countryby domicile99.4%
  • Asset classEquity100%

Sector

Sector weights in BAY and TECB, widest gap first
SectorMore in BAYMore in TECB
Health CareTECB +8.3 points
TechnologyBAY +7.4 points
CommunicationBAY +2.3 points
FinancialsTECB +1.3 points
Real EstateTECB +0.9 points
UtilitiesBAY +0.6 points
EnergyTECB +0.5 points
Consumer StaplesBAY +0.4 points
Consumer DiscretionaryBAY +0.3 points
IndustrialsTECB +0.2 points

Country, concentration and asset class

Country by domicile

Country weights in BAY and TECB, widest gap first
CountryMore in BAYMore in TECB
United StatesBAY +0.6 points
BrazilTECB +0.6 points

Concentration

Weight in the 10 largest Holdings

  • BAY43.4%
  • TECB42.3%

Securities held

  • BAY60
  • TECB171

Asset class

BAY
Equity
TECB
Equity

Holdings

  • Only in BAY34
  • In both26
  • Only in TECB145

Only in BAY

34 securities, 41.0% of BAY by weight

  • Broadcom Inc3.59%
  • Cisco Systems Inc2.56%
  • Gilead Sciences Inc2.27%

Only in TECB

145 securities, 56.1% of TECB by weight

  • Microsoft4.66%
  • Merck & Co Inc4.60%
  • Palantir Technologies Class A4.14%

Weight gaps

All 26 Holdings in both funds, largest gap first.

Holding weights in BAY and TECB, widest gap first
HoldingMore in BAYMore in TECB
Apple IncAAPLBAY +4.61 points
NVIDIA CorpNVDABAY +3.33 points
Palo Alto Networks IncPANWTECB +1.58 points
Snowflake IncSNOWBAY +1.37 points
Netflix IncNFLXTECB +0.91 points
Alphabet IncGOOGLBAY +0.91 points
Okta IncOKTABAY +0.82 points
Salesforce IncCRMBAY +0.78 points

All 30 BAY holdings⁠All 173 TECB holdings⁠

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

BAY vs TECB Cost

Overpaying TECB vs BAY

$1,994

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

  • BAY 0.20%

    $4,155

  • TECB 0.30%

    $6,149

$10,000
30 years

Cost over time

  • BAY 0.20%
  • TECB 0.30%
  • Overpaying
One line per fund, from year 0 to year 30. Use the arrow keys to read each point.$0$2K$4K$6K$8K051015202530TECB $6,149BAY $4,155

Year by year

YearBAYTECBOverpaying
10$365$545$180
20$1,421$2,113$692
30$4,155$6,149$1,994

Expense ratio

  • 0.20%BAY, cheaper
  • 0.30%TECB
  • Middle half of US Thematic funds
  • Median 0.35%

BAY 2nd cheapest of 22 funds

TECB 5th cheapest of 22 funds

BAY vs TECB Dividends

Last 12 months to Nov 2, 2026
Yield (12M)
BAY No data
TECB 0.29%
Payout (12M)
BAY None
TECB $0.22
Last payment
BAY No data
TECB $0.05
Ex-dividend
BAY No data
TECB Sep 15, 2026
Paid on
BAY No data
TECB Sep 18, 2026
Frequency
BAY No data
TECB Quarterly

Distribution history

Per share, 2020 to 2026, same scale for both

BAYAll BAY payments⁠

No distribution history available.

TECBQuarterly · 27 paymentsAll TECB payments⁠
One bar per payment. 27 payments from 2020 to 2026 YTD. Mar 25, 2020 $0.14; Jun 15, 2020 $0.02; Sep 23, 2020 $0.04; Dec 14, 2020 $0.07; Mar 25, 2021 $0.04; Jun 10, 2021 $0.02; Sep 24, 2021 $0.04; Dec 13, 2021 $0.04; Mar 24, 2022 $0.05; Jun 9, 2022 $0.03; Sep 26, 2022 $0.05; Dec 13, 2022 $0.04; Mar 23, 2023 $0.03; Jun 7, 2023 $0.02; Sep 26, 2023 $0.02; Dec 20, 2023 $0.02; Mar 21, 2024 $0.05; Jun 11, 2024 $0.01; Sep 25, 2024 $0.08; Dec 17, 2024 $0.04; Mar 18, 2025 $0.03; Jun 16, 2025 $0.04; Sep 16, 2025 $0.05; Dec 16, 2025 $0.07; Mar 17, 2026 $0.04; Jun 15, 2026 $0.05; Sep 15, 2026 $0.05. Use the arrow keys to read each point.$0$0.10202020232026YTD

BAY vs TECB Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years
BAY No dataTECB 19.7%
Return per unit of riskSharpe ratio, 3 years
BAY No dataTECB 1.17
Worst fallMax drawdown, 5 years
BAY No dataTECB −41.6%
Market sensitivityBeta, 5 years
BAY 1.52TECB 1.25

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