SPY vs TNUK
State Street SPDR S&P 500 ETF Trust vs Tortoise Nuclear Renaissance ETF
Which is better, SPY or TNUK?
SPY costs less.
SPY has a lower expense ratio. SPY is less concentrated, with 38.0% of the fund in its ten largest positions against 63.7%.
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 | SPY | TNUK |
|---|---|---|
| Expense Ratio | 0.09%Best | 0.75% |
| AUM | $804.7B | $1M |
| Dividend Yield | 0.98% | 0.00% |
| Holdings | 505 | 26 |
| YTD Return | +11.52%Best | -8.99% |
| 1Y Return | +17.48% | - |
| 3Y Return (annualized) | +20.62% | - |
| 5Y Return (annualized) | +12.73% | - |
| Top 10 Weight | 38.0%Best | 63.7% |
| Fund Family | State Street Investment Management | Tortoise Capital |
| Category | Equity | Equity |
| Style | Large Cap Blend | Large Cap Blend |
| Inception | Jan 22, 1993 | Dec 18, 2025 |
Not shown on this pair: Volatility (annualized), Max Drawdown, $10,000 over the window.
SPY vs TNUK 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.
SPY vs TNUK Performance
State Street SPDR S&P 500 ETF Trust (SPY) is an ETF from State Street Investment Management and Tortoise Nuclear Renaissance ETF (TNUK) is an ETF from Tortoise Capital. Year to date, SPY is up 11.52% versus a loss of 8.99% for TNUK.
Past performance does not guarantee future results.
Fees and Cost Over Time
SPY charges 0.09% per year while TNUK charges 0.75%. On a $10,000 position that is $9 vs $75 annually, a gap of $66 per year that compounds over a long holding period. On income, SPY currently yields 0.98% against 0.00% for TNUK.
Holdings Overlap
0.7% of SPY's money is in holdings TNUK also owns. 18.4% of TNUK's money is in holdings SPY also owns.
TNUK and SPY share little of their money.
5 positions in common, counted across the 504 positions we hold weights for in SPY and 25 in TNUK, against full books of 505 and 26.
What only one of them owns
Our book lists 11 positions for TNUK that do not appear in our book for SPY (42.7% of the fund), and 489 for SPY that do not appear in TNUK (98.8%).
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.
You are not choosing between two funds in isolation.
Whichever of SPY and TNUK you pick has to sit alongside everything else you own. Add the rest and see what the combination actually holds.
Free for up to 10 holdings. No account needed.
Frequently Asked Questions
Which is cheaper, SPY or TNUK?
SPY has an expense ratio of 0.09% while TNUK charges 0.75%. SPY is the cheaper option, by $66 a year on a $10,000 investment.
What is the holdings overlap between SPY and TNUK?
18.4% of TNUK's money is in holdings SPY also owns. 18.4% of TNUK's is in holdings SPY also owns. They hold 5 positions in common, counted across the 504 positions we hold weights for in SPY and 25 in TNUK.
Which pays a higher dividend, SPY or TNUK?
SPY yields 0.98% while TNUK yields 0.00%, so SPY currently pays the higher dividend yield.
Is TNUK better than SPY?
SPY has a lower expense ratio. SPY is less concentrated, with 38.0% of the fund in its ten largest positions against 63.7%. Which one suits a particular account depends on what it is for. This is information, not a recommendation.