AI vs DUOL: Correlation
How closely do C3.ai, Inc. (AI) and Duolingo, Inc. (DUOL) trade together? Their weekly returns over three years give a correlation of 0.49, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AI and DUOL?
On 3 years of weekly data the AI/DUOL correlation comes out at 0.49, moderate. The relationship has been stable: the 1-year correlation (0.47) sits close to the 3-year figure. The 5-year figure is 0.46, and annualized covariance runs at 2006.5 %².
Within AI's tracked universe of 15 assets, DUOL comes in at #7 by 3-year correlation. Over the last 12 months AI came out ahead by 14.8 percentage points (-40.3% against -55.1%).
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.
AI vs DUOL: side by side
| AI (C3.ai, Inc.) | DUOL (Duolingo, Inc.) | |
|---|---|---|
| 1-year return | -40.3% | -55.1% |
| 5-year return | -79.8% | +11.0% |
| Volatility (ann.) | 65.5% | 62.1% |
| Beta vs S&P 500 | 2.09 | 1.55 |
| Max drawdown (3Y) | -81.9% | -83.3% |
| Market cap | – | $6.7B |
| P/E (trailing) | – | 16.6 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AI | DUOL |
|---|---|---|
| 2022 | -64.2% | -33.0% |
| 2023 | +156.6% | +218.9% |
| 2024 | +19.9% | +42.9% |
| 2025 | -60.8% | -45.9% |
| 2026 | -23.4% | -18.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AI and DUOL good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.49 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between AI and DUOL?
As of 2026-08-27, the correlation of weekly returns between AI and DUOL is 0.49 over 3 years, 0.47 over 1 year and 0.46 over 5 years.
Is DUOL a good diversifier for AI?
Yes, to a useful degree: a correlation of 0.49 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.49 mean?
A reading of 0.49 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/ai-vs-duol.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ai-vs-duol/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: AI correlations · DUOL correlations
