DIA vs SPY Stock Comparison: AI Score, Valuation, Performance and Upside
DIA and SPY both provide blue-chip U.S. equity exposure, but through fundamentally different methodologies. DIA tracks 30 price-weighted DJIA companies with monthly dividends; SPY tracks 500 market-cap weighted S&P 500 companies with unmatched liquidity. SPY's superior diversification, market-cap weighting, and liquidity make it the preferred equity index vehicle; DIA's monthly dividends and DJIA recognition attract specific investor segments.
DIA vs SPY is a comparison of the world's oldest iconic index (DJIA price-weighted, 30 companies) against the world's most used institutional benchmark (S&P 500 market-cap weighted, 500 companies) — SPY represents more modern, economically sound index methodology while DIA offers monthly dividends and blue-chip concentration.
SPY holds the edge across 3 of 5 key metrics in this comparison. SPY has delivered stronger 1-year price return (+26.75% vs +24.12% for DIA).
- →prefer monthly dividend payments from an equity ETF to match monthly income needs or reinvestment schedules
- →value concentrated exposure to the 30 most iconic U.S. blue-chip companies in the DJIA
- →want lower technology sector weight than the S&P 500 with more industrials and consumer staples exposure
- →are comfortable with price-weighting methodology that gives high-priced stocks disproportionate index influence
- →prefer market-cap weighted S&P 500 exposure as the economically rational and institutionally dominant benchmark
- →value the deepest options market and tightest bid-ask spreads for tactical equity market trading and hedging
- →want 500-company diversification across all U.S. large-cap sectors rather than DIA's 30-company concentration
- →are comfortable with quarterly dividend distribution and UIT structure in exchange for maximum institutional liquidity
| Metric | DIA | SPY |
|---|---|---|
| ETF score | 75.0 | 87.0 |
| Latest close | $515.52 | $746.74 |
| 1M return | +4.65% | +2.04% |
| 6M return | +8.49% | +12.14% |
| 1Y return | +24.12% | +26.75% |
How much would $10,000 be worth today if invested at the start of each period, with all dividends reinvested?
| Period | DIA | SPY |
|---|---|---|
| 1Y ago | $12.64K (+26.4%) started 2025-06-18 | $12.85K (+28.5%) started 2025-06-18 |
| 5Y ago | $18.55K (+85.5%) started 2021-06-18 | $20.73K (+107.3%) started 2021-06-18 |
| 10Y ago | $43.73K (+337.3%) started 2016-06-20 | $50.21K (+402.1%) started 2016-06-20 |
Hypothetical — past performance does not guarantee future results.
| Metric | DIA | SPY |
|---|---|---|
| Expense ratio | 0.16% | 0.09% |
| Total assets (AUM) | $44.79B | $783.8B |
| Dividend yield | 1.37% | 0.98% |
| Trailing P/E | 24.47 | 26.74 |
| Beta | 0.87 | 1.02 |
| 52-week change | 24.12% | 26.75% |
| Metric | DIA | SPY |
|---|---|---|
| 1Y return | +24.12% | +26.75% |
| 6M return | +8.49% | +12.14% |
| 1M return | +4.65% | +2.04% |
| 1Y Sharpe ratio | 1.45 | 1.62 |
| Beta | 0.87 | 1.02 |
| Dividend yield | 1.37% | 0.98% |
| 5Y CAGR | +11.07% | +14.00% |
Lower drawdown and smaller single-period drops generally indicate a smoother ride, though they do not guarantee lower future risk.
| Period | Metric | DIA | SPY |
|---|---|---|---|
| 1Y | Growth | +24.12% | +26.75% |
| CAGR | +24.14% | +26.77% | |
| Sharpe ratio | 1.45 | 1.62 | |
| Max drawdown | 9.76% | 8.88% | |
| Max daily drop | 1.86% | 2.70% | |
| Max wkly drop | 4.35% | 3.82% | |
| 5Y | Growth | +69.01% | +92.56% |
| CAGR | +11.07% | +14.00% | |
| Sharpe ratio | 0.48 | 0.59 | |
| Max drawdown | 20.76% | 24.50% | |
| Max daily drop | 5.43% | 5.85% | |
| Max wkly drop | 10.27% | 11.50% | |
| 10Y | Growth | +252.46% | +321.77% |
| CAGR | +13.44% | +15.49% | |
| Sharpe ratio | 0.55 | 0.64 | |
| Max drawdown | 36.70% | 33.72% | |
| Max daily drop | 12.76% | 10.94% | |
| Max wkly drop | 18.87% | 17.97% |
| Category | DIA | SPY |
|---|---|---|
| Fund name | State Street SPDR Dow Jones Industrial Average ETF Trust | State Street SPDR S&P 500 ETF Trust |
| Type | ETF | ETF |
| Expense ratio | 0.16% | 0.09% |
| Total assets (AUM) | $44.79B | $783.8B |
| Dividend yield | 1.37% | 0.98% |
- →Monthly dividend payment schedule is unusual among equity ETFs and attractive to income investors who prefer monthly cash flow
- →DJIA's 30 blue-chip companies are among the most financially sound and globally recognized corporations
- →DJIA as a benchmark has global recognition and historical significance as one of the oldest equity indices
- →Market-cap weighting is the most economically rational methodology, with weights reflecting actual market judgments about corporate value
- →500 holdings across all sectors provides true large-cap U.S. diversification versus DIA's 30 blue-chips
- →World's most liquid ETF by trading volume — the deepest options market, tightest bid-ask spreads, and largest AUM of any ETF
- →Price-weighting is economically irrational — a stock split (which doesn't change economic value) changes its index weight dramatically
- →Only 30 holdings versus SPY's 500 creates far more concentration and less sector diversification
- →Limited technology exposure — the DJIA has historically underweighted technology relative to the S&P 500, costing performance during tech-led markets
- →0.0945% expense ratio is higher than IVV's 0.03%, though lower than DIA's 0.16%
- →UIT structure holds dividends as cash until quarterly distribution rather than reinvesting immediately
- →S&P 500 concentration in megacap tech (AAPL, MSFT, NVDA, AMZN, GOOGL) means the index is heavily influenced by a few companies
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