PAR vs TTD: Correlation
How closely do PAR Technology Corporation (PAR) and Trade Desk (The) (TTD) trade together? Their weekly returns over three years give a correlation of 0.48, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PAR and TTD?
Across a 3-year window, the weekly returns of PAR and TTD correlate at 0.48, moderate. The relationship has been stable: the 1-year correlation (0.40) sits close to the 3-year figure. Stretching to 5 years gives 0.45, with an annualized covariance of 1645.4 %².
By 3-year correlation, TTD places #11 of the 21 assets tracked against PAR. The trailing year gives PAR the advantage: -63.2% versus -74.5%, a 11.3-point spread.
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.
PAR vs TTD: side by side
| PAR (PAR Technology Corporation) | TTD (Trade Desk (The)) | |
|---|---|---|
| 1-year return | -63.2% | -74.5% |
| 5-year return | -71.7% | -83.4% |
| Volatility (ann.) | 56.2% | 60.7% |
| Beta vs S&P 500 | 1.72 | 1.23 |
| Max drawdown (3Y) | -85.4% | -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 | PAR | TTD |
|---|---|---|
| 2022 | -50.6% | -51.1% |
| 2023 | +67.0% | +60.5% |
| 2024 | +66.9% | +63.3% |
| 2025 | -50.1% | -67.7% |
| 2026 | -47.0% | -64.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PAR and TTD good diversifiers for each other?
Reasonably. At 0.48, PAR and TTD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PAR and TTD?
As of 2026-08-27, the correlation of weekly returns between PAR and TTD is 0.48 over 3 years, 0.40 over 1 year and 0.45 over 5 years.
Is TTD a good diversifier for PAR?
Reasonably. At 0.48, PAR and TTD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/par-vs-ttd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/par-vs-ttd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: PAR correlations · TTD correlations
