U.S. markets closed
  • S&P 500

    3,465.39
    +11.90 (+0.34%)
     
  • Dow 30

    28,335.57
    -28.09 (-0.10%)
     
  • Nasdaq

    11,548.28
    +42.28 (+0.37%)
     
  • Russell 2000

    1,640.50
    +10.25 (+0.63%)
     
  • Crude Oil

    39.78
    -0.86 (-2.12%)
     
  • Gold

    1,903.40
    -1.20 (-0.06%)
     
  • Silver

    24.70
    -0.01 (-0.04%)
     
  • EUR/USD

    1.1868
    +0.0042 (+0.36%)
     
  • 10-Yr Bond

    0.8410
    -0.0070 (-0.83%)
     
  • GBP/USD

    1.3038
    -0.0042 (-0.32%)
     
  • USD/JPY

    104.7200
    -0.1200 (-0.11%)
     
  • BTC-USD

    13,085.31
    +188.73 (+1.46%)
     
  • CMC Crypto 200

    260.05
    -1.40 (-0.54%)
     
  • FTSE 100

    5,860.28
    +74.63 (+1.29%)
     
  • Nikkei 225

    23,516.59
    +42.32 (+0.18%)
     

Covid-19 is a reminder to beware of seasonality in data

Dan Kopf
A couple walks amid fallen leaves of Chinar trees in a garden on an autumn day.
A couple walks amid fallen leaves of Chinar trees in a garden on an autumn day.

From immigration patterns to household spending to music listening, coronavirus is turning 2020 upside down. In the US, most of that change occurred between February and April, which makes looking at trends tricky. Many data points change from February to April every year, so to understand the magnitude of a change it is necessary to…

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