IVV vs TDG: Correlation
How closely do iShares Core S&P 500 ETF (IVV) and TransDigm Group (TDG) trade together? Their weekly returns over three years give a correlation of 0.52, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IVV and TDG?
Over the past 3 years, IVV and TDG moved with a correlation of 0.52, which is moderate. The past 12 months show a weaker link (0.40) than the 3-year average (0.52). Over 5 years the correlation is 0.62, and the annualized covariance of weekly returns is 191.0 %².
Among the 122 assets we track against IVV, TDG ranks #88 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months IVV outperformed by 29.8 percentage points (+20.7% for IVV against -9.1% for TDG). The rolling one-year correlation moved between 0.29 and 0.75 over the past three years, a moderate range. One caveat on sizing: TDG 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.
IVV vs TDG: side by side
| IVV (iShares Core S&P 500 ETF) | TDG (TransDigm Group) | |
|---|---|---|
| 1-year return | +20.7% | -9.1% |
| 5-year return | +83.0% | +136.5% |
| Volatility (ann.) | 14.5% | 25.5% |
| Beta vs S&P 500 | 1.00 | 0.91 |
| Max drawdown (3Y) | -18.8% | -25.3% |
| Market cap | – | $65.6B |
| P/E (trailing) | – | 36.6 |
| Dividend yield | 1.09% | 0.00% |
| Expense ratio | 0.03% | – |
| Assets under management | $869.2B | – |
| Sector / category | ETF · US Large Cap | Industrials |
IVV is a Large Blend fund from iShares: $869.2B under management, 503 holdings, a 0.03% expense ratio, a 1.09% trailing dividend yield.
Year-by-year returns
| Year | IVV | TDG |
|---|---|---|
| 2022 | -18.2% | +1.8% |
| 2023 | +26.3% | +66.6% |
| 2024 | +24.9% | +32.3% |
| 2025 | +17.8% | +12.2% |
| 2026 | +13.7% | -10.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Fund exposure
Keep in mind that IVV holds TDG at a 0.1% weight, which makes a slice of this correlation mechanical rather than coincidental.
Are IVV and TDG good diversifiers for each other?
Only partially. A correlation of 0.52 means IVV and TDG share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between IVV and TDG?
As of 2026-08-27, the correlation of weekly returns between IVV and TDG is 0.52 over 3 years, 0.40 over 1 year and 0.62 over 5 years.
Is TDG a good diversifier for IVV?
Only partially. A correlation of 0.52 means IVV and TDG share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.52 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
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Related comparisons
Hubs: IVV correlations · TDG correlations
