BDYN vs SPY
iShares Dynamic Equity Active ETF vs State Street SPDR S&P 500 ETF Trust
Which is better, BDYN or SPY?
Nearly the same fund. SPY costs less.
SPY has a lower expense ratio. SPY led over 1Y and the full window. The two have moved almost in lockstep, correlation 0.97. BDYN is less concentrated, with 30.2% of the fund in its ten largest positions against 37.8%.
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 | BDYN | SPY |
|---|---|---|
| Expense Ratio | 0.40% | 0.09%Best |
| AUM | $3.1B | $804.7B |
| Dividend Yield | 1.99% | 0.98% |
| Holdings | 408 | 505 |
| YTD Return | +8.51% | +12.22%Best |
| 1Y Return | +13.16% | +16.97%Best |
| 3Y Return (annualized) | - | +21.16% |
| 5Y Return (annualized) | - | +13.00% |
| Volatility (annualized) | 12.8%Best | 13.2% |
| Max Drawdown | -10.8% | -8.9%Best |
| $10,000 over 1 years | $11,291 | $11,658Best |
| Top 10 Weight | 30.2%Best | 37.8% |
| Fund Family | iShares by BlackRock (US) | State Street Investment Management |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Sep 12, 2025 | Jan 22, 1993 |
Volatility and max drawdown, and the $10,000 over 1 years row, are measured over the window both funds cover: Sep 15, 2025 to Sep 17, 2026 (1 years).
BDYN vs SPY 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 covers the 1 years both funds cover.
BDYN vs SPY Performance
iShares Dynamic Equity Active ETF (BDYN) is an ETF from iShares by BlackRock (US) and State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management. Over the past year BDYN returned +13.16% while SPY returned +16.97%. Year to date, BDYN is up 8.51% versus a gain of 12.22% for SPY.
Past performance does not guarantee future results.
Risk: Volatility and Drawdowns
SPY has been the more volatile fund, with annualized monthly volatility of 13.2% compared with 12.8% for BDYN. Lower volatility generally means a smoother ride, though it often comes with lower long-run returns.
The deepest peak-to-trough decline in our data was -10.8% for BDYN and -8.9% for SPY. Drawdown depth is what each fund did in the worst stretch of the window measured above.
The two funds' monthly returns correlate at 0.97. They move almost in lockstep, so holding both mostly duplicates the same exposure.
Fees and Cost Over Time
BDYN charges 0.40% per year while SPY charges 0.09%. On a $10,000 position that is $40 vs $9 annually, a gap of $31 per year that compounds over a long holding period. On income, BDYN currently yields 1.99% against 0.98% for SPY.
Holdings Overlap
71.1% of BDYN's money is in holdings SPY also owns. 66.5% of SPY's money is in holdings BDYN also owns.
Most of BDYN is already inside SPY. Owning both mostly buys the same companies twice.
100 positions in common, counted across the 246 positions we hold weights for in BDYN and 504 in SPY, against full books of 408 and 505.
What only one of them owns
Our book lists 397 positions for SPY that do not appear in our book for BDYN (32.8% of the fund), and 81 for BDYN that do not appear in SPY (14.9%).
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 BDYN | Weight in SPY | Difference |
|---|---|---|---|
| NVDANvidia Corp | 4.52% | 8.01% | 3.49% |
| AAPLApple, Inc | 4.68% | 7.26% | 2.58% |
| MSFTMicrosoft Corp | 3.48% | 5.66% | 2.18% |
| AMZNAmazon.Com Inc | 3.19% | 3.79% | 0.60% |
| GOOGAlphabet Inc | 3.74% | 2.39% | 1.35% |
| AVGOBroadcom Inc | 2.13% | 2.66% | 0.53% |
| MUMicron Technology, Inc. | 1.93% | 1.60% | 0.33% |
| LLYEli Lilly & Co. | 2.10% | 1.40% | 0.70% |
| METAMeta Platforms Inc | 1.53% | 1.93% | 0.40% |
| GOOGLAlphabet Inc,class A | 0.10% | 2.99% | 2.89% |
71.1% of BDYN is already inside SPY.
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, BDYN or SPY?
BDYN has an expense ratio of 0.40% while SPY charges 0.09%. SPY is the cheaper option, by $31 a year on a $10,000 investment.
Which performed better, BDYN or SPY?
Over the past year BDYN returned +13.16% vs +16.97% for SPY, so SPY leads on 1-year performance. Over the longest common window we track (1 years), BDYN annualized +12.91% vs +16.58% for SPY. Past performance does not guarantee future results. This is information, not a recommendation.
Which is riskier, BDYN or SPY?
SPY has been the more volatile fund at 13.2% annualized versus 12.8% for BDYN. Worst drawdown: BDYN -10.8% vs SPY -8.9%.
Should I hold both BDYN and SPY?
BDYN and SPY have a monthly-return correlation of 0.97, so they move almost identically. What is left to separate them is the fee and the index each one tracks. This is information, not a recommendation.
What is the holdings overlap between BDYN and SPY?
71.1% of BDYN's money is in holdings SPY also owns. 66.5% of SPY's is in holdings BDYN also owns. They hold 100 positions in common, counted across the 246 positions we hold weights for in BDYN and 504 in SPY.
Which pays a higher dividend, BDYN or SPY?
BDYN yields 1.99% while SPY yields 0.98%, so BDYN currently pays the higher dividend yield.
Is SPY better than BDYN?
SPY has a lower expense ratio. SPY led over 1Y and the full window. The two have moved almost in lockstep, correlation 0.97. BDYN is less concentrated, with 30.2% of the fund in its ten largest positions against 37.8%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.