CSCO vs DIA: Correlation
How closely do Cisco (CSCO) and SPDR Dow Jones Industrial Average ETF (DIA) trade together? Their weekly returns over three years give a correlation of 0.44, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CSCO and DIA?
Across a 3-year window, the weekly returns of CSCO and DIA correlate at 0.44, moderate. The link has loosened recently: the 1-year correlation (0.23) runs below the 3-year figure (0.44). Stretching to 5 years gives 0.51, with an annualized covariance of 152.8 %².
Within CSCO's tracked universe of 30 assets, DIA comes in at #10 by 3-year correlation. The last year tells two different stories: CSCO led by 48.1 percentage points, +67.3% for CSCO against +19.2% for DIA. This link changes with the market regime, having swung between 0.16 and 0.84 on a rolling one-year basis. Note the risk asymmetry: CSCO runs 2.0 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.
CSCO vs DIA: side by side
| CSCO (Cisco) | DIA (SPDR Dow Jones Industrial Average ETF) | |
|---|---|---|
| 1-year return | +67.3% | +19.2% |
| 5-year return | +118.1% | +64.8% |
| Volatility (ann.) | 26.4% | 13.0% |
| Beta vs S&P 500 | 0.84 | 0.79 |
| Max drawdown (3Y) | -20.2% | -16.0% |
| Market cap | $442.0B | – |
| P/E (trailing) | 33.8 | – |
| Dividend yield | 1.48% | 1.37% |
| Expense ratio | – | 0.16% |
| Assets under management | – | $45.2B |
| Sector / category | Information Technology | ETF · US Large Cap |
DIA is a Large Value fund from State Street Investment Management: $45.2B under management, 30 holdings, a 0.16% expense ratio, a 1.37% trailing dividend yield.
Year-by-year returns
| Year | CSCO | DIA |
|---|---|---|
| 2022 | -22.5% | -7.0% |
| 2023 | +9.3% | +16.0% |
| 2024 | +21.0% | +14.8% |
| 2025 | +33.5% | +14.7% |
| 2026 | +47.7% | +12.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
A structural note: 1.25% of DIA is CSCO itself, so the fund partly moves with the stock by construction.
Are CSCO and DIA good diversifiers for each other?
A fair diversifier. At 0.44, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CSCO and DIA?
The CSCO/DIA correlation stands at 0.44 on a 3-year window (1 year: 0.23, 5 years: 0.51), computed from weekly returns as of 2026-08-27.
Is DIA a good diversifier for CSCO?
A fair diversifier. At 0.44, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.44 mean?
A reading of 0.44 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/csco-vs-dia.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/csco-vs-dia/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CSCO correlations · DIA correlations
