PairBook
HomeTOST › TOST vs TTD

TOST vs TTD: Correlation

How closely do Toast, Inc. (TOST) and Trade Desk (The) (TTD) trade together? Their weekly returns over three years give a correlation of 0.47, which is moderate.

Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology

Correlation (3Y)
0.47
moderate
Correlation (1Y)
0.37
last 12 months
Correlation (5Y)
0.39
long-run
Ann. covariance
1356.2
%² · weekly, annualized

How correlated are TOST and TTD?

On 3 years of weekly data the TOST/TTD correlation comes out at 0.47, moderate. Recent behaviour matches the longer record: 0.37 over 1 year against 0.47 over 3. The 5-year figure is 0.39, and annualized covariance runs at 1356.2 %².

Within TOST's tracked universe of 16 assets, TTD comes in at #10 by 3-year correlation. Correlation aside, the last 12 months split them widely, with TOST ahead by 54.7 points (-19.8% versus -74.5%).

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.

TOST vs TTD: side by side

TOST (Toast, Inc.)TTD (Trade Desk (The))
1-year return-19.8%-74.5%
5-year return-43.7%-83.4%
Volatility (ann.)47.1%60.7%
Beta vs S&P 5001.361.23
Max drawdown (3Y)-54.7%-90.7%
Market cap$20.3B$6.3B
P/E (trailing)46.915.4
Dividend yield0.00%0.00%
Sector / categoryUS ListedCommunication Services
Lower P/E: TTD 15.4 vs 46.9Smaller drawdown: TOST -54.7% vs -90.7%Higher 5y return: TOST -43.7% vs -83.4%
-75%0%+1%2025-09-052026-08-27
Twelve months of weekly closes, each series rebased to 100. TOST · TTD

Year-by-year returns

YearTOSTTTD
2022-48.1%-51.1%
2023+1.3%+60.5%
2024+99.6%+63.3%
2025-2.6%-67.7%
2026-1.0%-64.6%

Calendar-year price returns; the current year is year-to-date as of the data date above.

Are TOST and TTD good diversifiers for each other?

Reasonably. At 0.47, TOST and TTD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

FAQ

What is the correlation between TOST and TTD?

Using weekly returns as of 2026-08-27: 0.47 over 3 years, with 0.37 over the last year and 0.39 over 5 years.

Is TTD a good diversifier for TOST?

Reasonably. At 0.47, TOST and TTD keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.

What does a correlation of 0.47 mean?

A reading of 0.47 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

JSON API · no key required
$ curl https://www.pairbook.io/api/v1/pairs/tost-vs-ttd.json

TOST vs TTD: 3-year weekly correlation 0.47TOST vs TTD0.47

Drop this badge in a README or notebook; it updates with the data:

[![TOST vs TTD correlation](https://www.pairbook.io/api/v1/badge/tost-vs-ttd.svg)](https://www.pairbook.io/pair/tost-vs-ttd/)

Free with attribution; caching and terms are described in the API documentation.

Related comparisons

Hubs: TOST correlations · TTD correlations