ARKK vs VOO: Correlation
ARK Innovation ETF (ARKK) and Vanguard S&P 500 ETF (VOO) show a strong relationship: their 3-year correlation of weekly returns is 0.77.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARKK and VOO?
On 3 years of weekly data the ARKK/VOO correlation comes out at 0.77, strong. Little has changed lately, as the 1-year reading of 0.71 lands near the 3-year figure. The 5-year figure is 0.77, and annualized covariance runs at 432.0 %².
By 3-year correlation, VOO places #8 of the 122 assets tracked against ARKK. Twelve-month performance is nearly a tie, at +15.7% for ARKK and +20.6% for VOO. The rolling one-year correlation stayed in a tight band between 0.67 and 0.88 over the past three years, which points to a structural rather than episodic relationship. Note the risk asymmetry: ARKK runs 2.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
ARKK vs VOO: side by side
| ARKK (ARK Innovation ETF) | VOO (Vanguard S&P 500 ETF) | |
|---|---|---|
| 1-year return | +15.7% | +20.6% |
| 5-year return | -27.7% | +83.0% |
| Volatility (ann.) | 38.8% | 14.4% |
| Beta vs S&P 500 | 2.07 | 0.99 |
| Max drawdown (3Y) | -39.6% | -18.7% |
| Dividend yield | – | 1.07% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $1,686.9B |
| Sector / category | ETF · Thematic | ETF · US Large Cap |
VOO, Vanguard's Large Blend fund, carries $1,686.9B under management, 503 holdings, a 0.03% expense ratio, a 1.07% trailing dividend yield.
Year-by-year returns
| Year | ARKK | VOO |
|---|---|---|
| 2022 | -67.0% | -18.2% |
| 2023 | +69.0% | +26.3% |
| 2024 | +8.4% | +25.0% |
| 2025 | +35.5% | +17.8% |
| 2026 | +13.6% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARKK and VOO good diversifiers for each other?
To a limited degree. At 0.77 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between ARKK and VOO?
As of 2026-08-27, the correlation of weekly returns between ARKK and VOO is 0.77 over 3 years, 0.71 over 1 year and 0.77 over 5 years.
Is VOO a good diversifier for ARKK?
To a limited degree. At 0.77 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.77 mean?
A reading of 0.77 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: ARKK correlations · VOO correlations
