FFIV vs VTI: Correlation
Measured on weekly returns over the past three years, F5, Inc. (FFIV) and Vanguard Total Stock Market ETF (VTI) carry a correlation of 0.43, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FFIV and VTI?
Across a 3-year window, the weekly returns of FFIV and VTI correlate at 0.43, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.21 versus 0.43 over 3 years. Stretching to 5 years gives 0.56, with an annualized covariance of 165.6 %².
Among the 34 assets we track against FFIV, VTI ranks #13 by 3-year correlation. On 12-month performance FFIV holds a 8.4-point edge, +29.1% against +20.7%. The relationship is regime-dependent: the rolling one-year correlation swung between 0.15 and 0.72 over the past three years, so this pair behaves very differently depending on the market environment. Risk is not evenly split, since FFIV carries 1.8 times the volatility of the other side.
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.
FFIV vs VTI: side by side
| FFIV (F5, Inc.) | VTI (Vanguard Total Stock Market ETF) | |
|---|---|---|
| 1-year return | +29.1% | +20.7% |
| 5-year return | +99.3% | +74.8% |
| Volatility (ann.) | 26.6% | 14.6% |
| Beta vs S&P 500 | 0.77 | 1.01 |
| Max drawdown (3Y) | -34.7% | -19.3% |
| Market cap | $23.2B | – |
| P/E (trailing) | 31.8 | – |
| Dividend yield | 0.00% | 1.06% |
| Expense ratio | – | 0.03% |
| Assets under management | – | $2,290.0B |
| Sector / category | Information Technology | ETF · US Large Cap |
VTI, Vanguard's Large Blend fund, carries $2,290.0B under management, 3140 holdings, a 0.03% expense ratio, a 1.06% trailing dividend yield.
Year-by-year returns
| Year | FFIV | VTI |
|---|---|---|
| 2022 | -41.4% | -19.5% |
| 2023 | +24.7% | +26.0% |
| 2024 | +40.5% | +23.8% |
| 2025 | +1.5% | +17.1% |
| 2026 | +60.7% | +14.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FFIV and VTI good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between FFIV and VTI?
As of 2026-08-27, the correlation of weekly returns between FFIV and VTI is 0.43 over 3 years, 0.21 over 1 year and 0.56 over 5 years.
Is VTI a good diversifier for FFIV?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.43 mean?
A reading of 0.43 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: FFIV correlations · VTI correlations
