BLK vs VT: Correlation
Measured on weekly returns over the past three years, BlackRock (BLK) and Vanguard Total World Stock ETF (VT) carry a correlation of 0.71, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BLK and VT?
Across a 3-year window, the weekly returns of BLK and VT correlate at 0.71, strong. The link has loosened recently: the 1-year correlation (0.60) runs below the 3-year figure (0.71). Stretching to 5 years gives 0.79, with an annualized covariance of 245.0 %².
By 3-year correlation, VT places #4 of the 42 assets tracked against BLK. Their recent paths diverged sharply: over the last 12 months VT outperformed by 17.4 percentage points (+5.3% for BLK against +22.7% for VT). The rolling one-year correlation moved between 0.54 and 0.86 over the past three years, a moderate range. One caveat on sizing: BLK is 1.8 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.
BLK vs VT: side by side
| BLK (BlackRock) | VT (Vanguard Total World Stock ETF) | |
|---|---|---|
| 1-year return | +5.3% | +22.7% |
| 5-year return | +38.9% | +67.7% |
| Volatility (ann.) | 24.7% | 13.9% |
| Beta vs S&P 500 | 1.19 | 0.92 |
| Max drawdown (3Y) | -23.7% | -16.5% |
| Market cap | $189.7B | – |
| P/E (trailing) | 28.1 | – |
| Dividend yield | 1.86% | 1.59% |
| Expense ratio | – | 0.06% |
| Assets under management | – | $97.9B |
| Sector / category | Financials | ETF · Global |
VT is a Global Large-Stock Blend fund from Vanguard: $97.9B under management, 5308 holdings, a 0.06% expense ratio, a 1.59% trailing dividend yield.
Year-by-year returns
| Year | BLK | VT |
|---|---|---|
| 2022 | -20.4% | -18.0% |
| 2023 | +17.9% | +22.0% |
| 2024 | +29.3% | +16.5% |
| 2025 | +6.6% | +22.4% |
| 2026 | +10.3% | +15.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
Keep in mind that VT holds BLK at a 0.15% weight, which makes a slice of this correlation mechanical rather than coincidental.
Are BLK and VT good diversifiers for each other?
To a limited degree. At 0.71 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 BLK and VT?
As of 2026-08-27, the correlation of weekly returns between BLK and VT is 0.71 over 3 years, 0.60 over 1 year and 0.79 over 5 years.
Is VT a good diversifier for BLK?
To a limited degree. At 0.71 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 0.71 mean?
A reading of 0.71 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/blk-vs-vt.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/blk-vs-vt/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BLK correlations · VT correlations
