IBKR vs VOO: Correlation
Interactive Brokers (IBKR) and Vanguard S&P 500 ETF (VOO) show a moderate relationship: their 3-year correlation of weekly returns is 0.58.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IBKR and VOO?
On 3 years of weekly data the IBKR/VOO correlation comes out at 0.58, moderate. Little has changed lately, as the 1-year reading of 0.58 lands near the 3-year figure. The 5-year figure is 0.54, and annualized covariance runs at 283.5 %².
Within IBKR's tracked universe of 32 assets, VOO comes in at #7 by 3-year correlation. Correlation aside, the last 12 months split them widely, with IBKR ahead by 36.4 points (+57.0% versus +20.6%). This link changes with the market regime, having swung between 0.09 and 0.76 on a rolling one-year basis. One caveat on sizing: IBKR is 2.4 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
IBKR vs VOO: side by side
| IBKR (Interactive Brokers) | VOO (Vanguard S&P 500 ETF) | |
|---|---|---|
| 1-year return | +57.0% | +20.6% |
| 5-year return | +516.0% | +83.0% |
| Volatility (ann.) | 33.9% | 14.4% |
| Beta vs S&P 500 | 1.37 | 0.99 |
| Max drawdown (3Y) | -38.7% | -18.7% |
| Market cap | $164.5B | – |
| P/E (trailing) | 38.5 | – |
| Dividend yield | 0.34% | 1.07% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $1,686.9B |
| Sector / category | Financials | 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 | IBKR | VOO |
|---|---|---|
| 2022 | -8.4% | -18.2% |
| 2023 | +15.1% | +26.3% |
| 2024 | +114.4% | +25.0% |
| 2025 | +46.4% | +17.8% |
| 2026 | +50.4% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 0.06% of VOO is IBKR itself, so the fund partly moves with the stock by construction.
Are IBKR and VOO good diversifiers for each other?
To a limited degree. At 0.58 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 IBKR and VOO?
Using weekly returns as of 2026-08-27: 0.58 over 3 years, with 0.58 over the last year and 0.54 over 5 years.
Is VOO a good diversifier for IBKR?
To a limited degree. At 0.58 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 0.58 mean?
On the −1 to +1 scale, 0.58 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: IBKR correlations · VOO correlations
