YTD, QoQ and YoYYTD
YTD means year to date (since 1 January); QoQ compares with the previous quarter; YoY compares with the same period a year earlier.
YTD, QoQ and YoY are shorthand for which periods are being compared. Reading them correctly stops you mistaking a seasonal swing for a trend.
- Category
- Market Language and Slang
- Reading time
- 3 min
- Also called
- Year to date, Quarter on quarter, Year on year
- Updated
The abbreviations in plain words
YTD (year to date) measures from 1 January to today.
Statistics offices publish both: growth versus the previous quarter (QoQ) and versus the same period a year earlier (YoY).1
Price data work the same way — inflation is commonly quoted as a 1-month or 12-month change.2
How to calculate each comparison
Pick the two values
Current value and the base-period value.
YTD
Base = value at the end of the previous year.
QoQ
For QoQ, compare with the previous quarter — and only use seasonally adjusted data, or the comparison is meaningless.1
YoY
Base = same period a year earlier, which cancels most seasonal effects.
Compute the change
(Current − Base) ÷ Base × 100.
Check annualising
Watch for annualised figures: US quarterly GDP growth is reported at an annual rate.3
Worked examples
Example 1 — YTD return
+8% YTDA hypothetical fund was 50 on 31 December and is 54 today.
| YTD | +8% |
(54 − 50) ÷ 50 = 8% year to date; like the 12-month percent changes reported for CPI, the label tells you the base period.2
Example 2 — QoQ vs YoY
Same data, two storiesHypothetical quarterly sales: 100 a year ago, 115 last quarter, 110 now.
| QoQ | −4.3% |
| YoY | +10% |
GDP headlines likewise report the rate of change from the previous quarter or year; here the two views disagree.3
Example 3 — Annualised rate
Check the conventionHypothetical GDP grows 0.5% QoQ.
| QoQ | 0.5% |
| Annualised | ≈2.0% |
Because US quarterly GDP growth is annualised, the headline would show about 2%.3
QoQ vs YoY
| Aspect | QoQ | YoY |
|---|---|---|
| Base period | Previous quarter | Same quarter last year |
| Seasonality | Needs adjusted data | Mostly cancels out |
| Speed | Picks up turns early | Smoother, slower |
| Noise | Higher | Lower |
Where these abbreviations appear
Economic data
Gross Domestic Product and Consumer Price Index releases.
Company results
Earnings growth versus last year.
Fund reports
YTD performance of an Exchange-Traded Fund.
Macro calendars
Reading an Economic Indicator headline.
Advantages and disadvantages
Advantages
- Short, standard labels.
- Make the base period explicit.
- YoY smooths seasonal effects.
- QoQ shows turning points earlier.
Disadvantages
- Easy to mix up bases.
- QoQ can be annualised or not.
- YoY lags turning points.
- YTD depends on when in the year you look.
Going deeper
Read as far as you need. Each level builds on the one before it.
Base effects
Beginner
Headline growth compares with the previous quarter or year, so a weak starting point can flatter the result.3
Seasonal adjustment
Intermediate
Quarter-on-quarter figures only make sense on seasonally adjusted data.1
Annualised vs raw
Advanced
The US annualises quarterly GDP growth, while many other countries report the plain quarterly change.3
Common mistakes
Comparing QoQ with YoY
Different bases, different stories.
Missing annualisation
Check the release notes.
Using unadjusted QoQ
Seasonality distorts it.
Treating YTD as annual
It is a partial year.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- YTD = since 1 January.
- QoQ = versus the previous quarter.
- YoY = versus the same period a year earlier.
- Check whether figures are annualised.
- Always identify the base period.
Frequently asked questions
What is MoM?
Is YTD calendar or fiscal?
Why does US GDP look bigger than EU figures?
Further learning
- Gross Domestic Product
Quarterly growth figures.
- Consumer Price Index
Monthly and 12-month inflation.
- Economic Indicator
Reading data releases.
- Earnings
Company growth comparisons.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- Eurostat. GDP and main components – quarterly data (namq_10_gdp) metadata (opens in a new tab) Checked .
- U.S. Bureau of Labor Statistics. Consumer Price Index Frequently Asked Questions (opens in a new tab) Checked .
- U.S. Bureau of Economic Analysis. What to know about GDP (opens in a new tab) Checked .
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.