BCTK vs THRO
Baron Technology ETF vs iShares US Thematic Rotation Active ETF
Which is better, BCTK or THRO?
THRO has been ahead.
THRO has a lower expense ratio. THRO led over 1Y. THRO is less concentrated, with 43.5% of the fund in its ten largest positions against 57.9%.
MarketXLS is not an investment adviser. This comparison is generated automatically from market data and is for information only. A Best mark means the better reading on that one measure, not a recommendation to buy.
Side-by-Side Comparison
| Metric | BCTK | THRO |
|---|---|---|
| Expense Ratio | 0.75% | 0.57%Best |
| AUM | - | $7.5B |
| Dividend Yield | 0.16% | 0.30% |
| Holdings | 40 | 251 |
| YTD Return | +17.64%Best | +14.55% |
| 1Y Return | - | +18.23% |
| 3Y Return (annualized) | - | +23.72% |
| Top 10 Weight | 57.9% | 43.5%Best |
| Fund Family | Baron Funds | BlackRock, Inc. (US) |
| Category | Equity | Equity |
| Style | Large Cap Growth | Large Cap Growth |
| Inception | Dec 12, 2025 | Dec 14, 2021 |
Not shown on this pair: 5Y Return (annualized), Volatility (annualized), Max Drawdown, $10,000 over the window.
BCTK vs THRO growth
Month-end closes. Both lines start at 0% in the first month shown, so the gap between them is the difference in growth across that window. The full view is available from the range buttons; it is not the opening view here because over the whole period one of these two funds moves so much further than the other that its line would sit flat on the axis.
BCTK vs THRO Performance
Baron Technology ETF (BCTK) is an ETF from Baron Funds and iShares US Thematic Rotation Active ETF (THRO) is an ETF from BlackRock, Inc. (US). Year to date, BCTK is up 17.64% versus a gain of 14.55% for THRO.
Past performance does not guarantee future results.
Fees and Cost Over Time
BCTK charges 0.75% per year while THRO charges 0.57%. On a $10,000 position that is $75 vs $57 annually, a gap of $18 per year that compounds over a long holding period. On income, BCTK currently yields 0.16% against 0.30% for THRO.
Holdings Overlap
59.0% of BCTK's money is in holdings THRO also owns. 28.7% of THRO's money is in holdings BCTK also owns.
The two portfolios partly overlap.
18 positions in common, counted across the 39 positions we hold weights for in BCTK and 247 in THRO, against full books of 40 and 251.
What only one of them owns
Our book lists 144 positions for THRO that do not appear in our book for BCTK (70.2% of the fund), and 15 for BCTK that do not appear in THRO (24.5%).
Some of those will be the same company recorded under a different code in one of the two books, so the real difference in what you would own is no larger than this and may be smaller. We do not name the individual positions here for that reason.
Top Shared Holdings
| Stock | Weight in BCTK | Weight in THRO | Difference |
|---|---|---|---|
| NVDANvidia Corp | 7.12% | 8.58% | 1.46% |
| AMZNAmazon.Com Inc | 4.58% | 4.47% | 0.11% |
| GOOGAlphabet Inc. C | 6.29% | 1.87% | 4.42% |
| MUMicron Technology, Inc. | 4.78% | 2.61% | 2.17% |
| LRCXLrcx Uw Equity | 6.61% | 0.77% | 5.84% |
| AVGOBroadcom Inc | 5.02% | 2.11% | 2.91% |
| SPCXSpace Exploration Technologies | 6.67% | 0.10% | 6.57% |
| AMDAdvanced Micro Devices Inc | 3.73% | 1.99% | 1.74% |
| TSLATesla Inc | 3.30% | 1.35% | 1.95% |
| METAMeta Platforms Inc | 1.13% | 1.97% | 0.84% |
59.0% of BCTK is already inside THRO.
You probably hold more than these two. Add the rest and see how much of the whole book is the same companies twice.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, BCTK or THRO?
BCTK has an expense ratio of 0.75% while THRO charges 0.57%. THRO is the cheaper option, by $18 a year on a $10,000 investment.
What is the holdings overlap between BCTK and THRO?
59.0% of BCTK's money is in holdings THRO also owns. 28.7% of THRO's is in holdings BCTK also owns. They hold 18 positions in common, counted across the 39 positions we hold weights for in BCTK and 247 in THRO.
Which pays a higher dividend, BCTK or THRO?
BCTK yields 0.16% while THRO yields 0.30%, so THRO currently pays the higher dividend yield.
Is THRO better than BCTK?
THRO has a lower expense ratio. THRO led over 1Y. THRO is less concentrated, with 43.5% of the fund in its ten largest positions against 57.9%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.