SMWB vs TTD: Correlation
How closely do Similarweb Ltd. (SMWB) and Trade Desk (The) (TTD) trade together? Their weekly returns over three years give a correlation of 0.42, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SMWB and TTD?
Over the past 3 years, SMWB and TTD moved with a correlation of 0.42, which is moderate. The relationship has been stable: the 1-year correlation (0.36) sits close to the 3-year figure. Over 5 years the correlation is 0.37, and the annualized covariance of weekly returns is 1715.2 %².
Among the 13 assets we track against SMWB, TTD ranks #6 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months SMWB outperformed by 68.6 percentage points (-5.9% for SMWB against -74.5% for TTD).
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.
SMWB vs TTD: side by side
| SMWB (Similarweb Ltd.) | TTD (Trade Desk (The)) | |
|---|---|---|
| 1-year return | -5.9% | -74.5% |
| 5-year return | -52.1% | -83.4% |
| Volatility (ann.) | 68.1% | 60.7% |
| Beta vs S&P 500 | 0.91 | 1.23 |
| Max drawdown (3Y) | -86.7% | -90.7% |
| Market cap | $0.8B | $6.3B |
| P/E (trailing) | – | 15.4 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | Communication Services |
Year-by-year returns
| Year | SMWB | TTD |
|---|---|---|
| 2022 | -64.1% | -51.1% |
| 2023 | -17.1% | +60.5% |
| 2024 | +165.9% | +63.3% |
| 2025 | -47.1% | -67.7% |
| 2026 | +22.7% | -64.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SMWB and TTD good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between SMWB and TTD?
Using weekly returns as of 2026-08-27: 0.42 over 3 years, with 0.36 over the last year and 0.37 over 5 years.
Is TTD a good diversifier for SMWB?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 mean?
A reading of 0.42 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/smwb-vs-ttd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/smwb-vs-ttd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: SMWB correlations · TTD correlations
