STM vs TXN: Correlation
How closely do STMicroelectronics N.V. (STM) and Texas Instruments (TXN) trade together? Their weekly returns over three years give a correlation of 0.67, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are STM and TXN?
On 3 years of weekly data the STM/TXN correlation comes out at 0.67, strong. Little has changed lately, as the 1-year reading of 0.64 lands near the 3-year figure. The 5-year figure is 0.68, and annualized covariance runs at 1074.8 %².
Among the 15 assets we track against STM, TXN ranks #5 by 3-year correlation. Correlation aside, the last 12 months split them widely, with STM ahead by 57.9 points (+91.0% versus +33.1%).
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.
STM vs TXN: side by side
| STM (STMicroelectronics N.V.) | TXN (Texas Instruments) | |
|---|---|---|
| 1-year return | +91.0% | +33.1% |
| 5-year return | +19.4% | +60.4% |
| Volatility (ann.) | 46.5% | 34.3% |
| Beta vs S&P 500 | 1.62 | 1.28 |
| Max drawdown (3Y) | -64.6% | -33.4% |
| Market cap | $45.8B | $243.4B |
| P/E (trailing) | – | 40.6 |
| Dividend yield | 0.72% | 2.15% |
| Sector / category | US Listed | Information Technology |
Year-by-year returns
| Year | STM | TXN |
|---|---|---|
| 2022 | -26.8% | -9.9% |
| 2023 | +41.7% | +6.4% |
| 2024 | -49.7% | +13.1% |
| 2025 | +5.3% | -4.5% |
| 2026 | +98.7% | +56.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are STM and TXN good diversifiers for each other?
To a limited degree. At 0.67 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 STM and TXN?
The STM/TXN correlation stands at 0.67 on a 3-year window (1 year: 0.64, 5 years: 0.68), computed from weekly returns as of 2026-08-27.
Is TXN a good diversifier for STM?
To a limited degree. At 0.67 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 0.67 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
$ curl https://www.pairbook.io/api/v1/pairs/stm-vs-txn.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: STM correlations · TXN correlations
