A monthly gauge of the UK service sector that takes into account business outlook. The survey queries executives in transport and communications, financial intermediation, business services, personal services, computing and IT, hotels and restaurants.

Purchasing managers are tasked with gauging future demand, and adjusting orders for materials accordingly. The PMI summarizes the opinions of these executives to give a picture of the future of the service sector. A higher PMI indicates that materials purchases are increasing and that the economic outlook is positive. Alternately, a lower PMI means orders for materials are down and the future outlook is less favorable. By nature, the figure is very sensitive to the business cycle and tends to match growth or decline in the economy as a whole.

Because the contribution services makes to the economy tends to be very consistent and predictable, Services PMI figures typically do not move markets

The PMI is presented as an index with a value between 1-100.

An index level of 50 denotes no change since the previous month, while a level above 50 signals an increase or improvement, and below 50 indicates a decrease or deterioration.

A monthly index released by the Institute of Supply Management which tracks the amount of manufacturing activity that occurred in the previous month.ISM Manufacuring assesses the state of US industry by surveying executives on expectations for future production, new orders, inventories, employment and deliveries. This data is considered a very important and trusted economic measure. If the index has a value below 50, due to a decrease in activity, it tends to indicate an economic recession, especially if the trend continues over several months. A value substantially above 50 likely indicates a time of economic growth. The values for the index can be between 0 and 100.

Values over 50 generally indicate an expansion, while values below 50 indicate contraction.

It's a leading indicator of economic health - businesses react quickly to market conditions, and their purchasing managers hold perhaps the most current and relevant insight into the company's view of the economy. Above 50.0 indicates industry expansion, below indicates contraction. The 'Previous' listed is the 'Actual' from the Flash release and therefore the 'History' data will appear unconnected. There are 2 versions of this report released about a week apart – Flash and Final. The Flash release is the earliest and thus tends to have the most impact.

An index level of 50 denotes no change since the previous month, while a level above 50 signals an increase or improvement, and below 50 indicates a decrease or deterioration.