Here is the opening statement from the Department of Labor:

SEASONALLY ADJUSTED DATA

In the week ending September 12, the advance figure for seasonally adjusted initial claims was 860,000, a decrease of 33,000 from the previous week's revised level. The previous week's level was revised up by 9,000 from 884,000 to 893,000. The 4-week moving average was 912,000, a decrease of 61,000 from the previous week's revised average. The previous week's average was revised up by 2,250 from 970,750 to 973,000.

The advance seasonally adjusted insured unemployment rate was 8.6 percent for the week ending September 5, a decrease of 0.7 percentage point from the previous week's revised rate. The previous week's rate was revised up by 0.1 from 9.2 to 9.3 percent. The advance number for seasonally adjusted insured unemployment during the week ending September 5 was 12,628,000, a decrease of 916,000 from the previous week's revised level. The previous week's level was revised up 159,000 from 13,385,000 to 13,544,000. The 4-week moving average was 13,489,000, a decrease of 532,750 from the previous week's revised average. The previous week's average was revised up by 39,750 from 13,982,000 to 14,021,750. [See full report]

This morning's seasonally adjusted 860K new claims, down 33K from the previous week's revised figure, was worse than the Investing.com forecast of 850K.

Here is a close look at the data over the decade (with a callout for the past year), which gives a clearer sense of the overall trend.

Unemployment Claims since 2007

As we can see, there's a good bit of volatility in this indicator, which is why the 4-week moving average (the highlighted number) is a more useful number than the weekly data. Here is the complete data series.

Unemployment Claims

The headline Unemployment Insurance data is seasonally adjusted. What does the non-seasonally adjusted data look like? See the chart below, which clearly shows the extreme volatility of the non-adjusted data (the red dots). The 4-week MA gives an indication of the recurring pattern of seasonal change (note, for example, those regular January spikes).