New filings rise when layoffs spread and fall when layoffs ease, with seasonal patterns and program coverage shaping the weekly count.
- Seasonally adjusted initial claims: the headline flow of new filings after correction for normal seasonal patterns.
- Unadjusted initial claims: the raw administrative count used to compute the adjustment and judge seasonal expectations.
- 4-week moving average: the mean of the last 4 adjusted weeks, damping the weekly volatility noted in the release notes.
- Continued claims and insured rate: insured workers still claiming and their share of covered jobs, confirming the economy's direction.
- Federal filings and Extended Benefits: former federal civilian and veteran claims, plus states where automatic extensions trigger.
- State detail: largest state moves with state-supplied industry reasons, showing geographic and sectoral drivers.
The week ending March 28, 2020 reported 6,648,000 adjusted initial claims, up 3,341,000, the highest in the adjusted series history. Unadjusted claims totaled 5,823,917, up 99.4%, while seasonal patterns had expected a 0.8% decrease, the model failure behind the later switch to additive factors. The 4-week average rose to 2,612,000, smoothing the spike, and insured unemployment reached 3,029,000, its highest since July 6, 2013. Nearly every state cited COVID-19, led by accommodation and food services layoffs.