Comma-delimited plaintext Advance Decline data

Pulled each day from Yahoo.com. Formerly averaged with the Merrill Lynch market diary but that source has disappeared. Other sources that haven't yet been incorporated into this site are MarketVolume, BarChart, ClearStation, Barron's, and BigCharts. If you know of other free data sources to average in (none of them are ever quite the same), please let me know. Write to me at anachronist -at- gmail.com.

Data will be shown for holidays even if markets are closed. Please don't write to me asking why. If the data sources show data on that day, the data will be reported here.

Most recent summary (text file) (csv file)

2008/11/20
Market, AdvIssues, DecIssues, UncIssues,      AdvVol,     DeclVol,     UnchVol,   NewHis,  NewLows
  NYSE,       334,      3413,        39,  1025517545,   626301121,    28957854,       45,     1684
  AMEX,       174,       909,        70,    30092778,  2567109610,     9402737,        8,      421
NASDAQ,       426,      2526,       102,   227658909,  2959539342,    13583039,        2,     1272

Daily summaries

History

Note: On 21 June 2002, both data sources began reporting volumes about 1000 times higher than past history, and have continued to do so. I have no explanation for this.

The "Extremes" historical data began collection on 27 November 2005.

Comma-delimited .txt files:

NYSE (from 1 March 1965)
Index: S&P 500, DJIA (last 500 days)
Issues: Advancing, Declining, Unchanged
Extremes: 52-week highs, 52-week lows
Volume: Advancing, Declining, Unchanged
AMEX (from 1 February 2002)
Issues: Advancing, Declining, Unchanged,
Extremes: 52-week highs, 52-week lows
Volume: Advancing, Declining, Unchanged
NASDAQ (from 3 January 1978)
Index: NASDAQ composite (last 500 days)
Issues: Advancing, Declining, Unchanged
Extremes: 52-week highs, 52-week lows
Volume: Advancing, Declining, Unchanged

Excel .csv files:

NYSE (from 1 March 1965)
Issues: Advancing, Declining, Unchanged
Extremes: 52-week highs, 52-week lows
Volume: Advancing, Declining, Unchanged
 
AMEX (from 1 February 2002)
Issues: Advancing, Declining, Unchanged,
Extremes: 52-week highs, 52-week lows
Volume: Advancing, Declining, Unchanged
 
NASDAQ (from 3 January 1978)
Issues: Advancing, Declining, Unchanged
Extremes: 52-week highs, 52-week lows
Volume: Advancing, Declining, Unchanged
 

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