Recently, a friend asked me what exactly the non-farm payroll data is all about. I realized that many people are still a bit confused between the small non-farm payroll and the big non-farm payroll, so I might as well organize and share it with everyone.

First, let's talk about the small non-farm payroll, officially called the ADP National Employment Report. It is published by ADP, a company that provides payroll processing services, so their data is based on the employment situations of their clients. The ADP report is usually released on the first Wednesday of each month, and importantly, it comes out two days earlier than the official non-farm payroll report. Because of this timing difference, investors often use the ADP report to predict what the official non-farm payroll will show. Although the ADP report is not an official statistic, its early release gives it some influence on the market, especially when investors are sensitive to employment data.

Next, let's look at the big non-farm payroll, which is the official heavyweight report. Its full name is the U.S. Non-Farm Payrolls (NFP), published by the U.S. Bureau of Labor Statistics, usually on the first Friday of each month. The big non-farm report covers a broader scope, including all non-farm employment changes in both the private and government sectors. The key indicators are the number of new jobs added, the unemployment rate, and the average hourly earnings. This data has a significant impact on the Federal Reserve's interest rate decisions and market expectations, making it one of the most important economic indicators in the U.S.

What is the biggest difference between the two? The small non-farm payroll only reflects the private sector, while the big non-farm payroll is the comprehensive official data. The ADP report often deviates from the official number, so it is more of a reference indicator. The big non-farm payroll is what the market truly pays attention to. In terms of authority, the big non-farm payroll definitely surpasses the ADP report.

Regarding its impact on the stock market, the small non-farm payroll has limited influence because it is less authoritative. The market usually uses it to adjust expectations for the big non-farm report, which may cause short-term volatility but generally not too intense. The big non-farm payroll, on the other hand, has a much more direct impact. If employment data exceeds expectations, it indicates a strong economy, and stocks tend to rise; conversely, if the data falls short, investors worry about a recession, and stocks may drop accordingly.

So, in simple terms, the small non-farm payroll is an early signal, while the big non-farm payroll is the definitive verdict. Next time you see the non-farm payroll data released, don’t get carried away by the ADP report—wait for the official numbers.