For both Black Tuesday, October 29, 1929 and Black Monday, October 19, 1987:

1. What was the Dow Jones Industrial Average at the opening?
2. What was the DJIA at the end of the day?
3. How many stocks on the NYSE were up on each of those days 
4. How many stocks on the NYSE were down on each of those days? 

Thanks

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Request for Question Clarification by juggler-ga on 14 Jan 2004 23:20 PST

Hi.

I've located the DJIA's opening & closing levels for both Black
Tuesday (10/29/1929) and Black Monday (10/19/1987), as well as the
advance/decline ratio for the NYSE for 10/19/1987.

However, I haven't been able to locate the advance/decline ratio for 10/29/1929.

Would you accept three out of four?

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Clarification of Question by jonnysalkow-ga on 15 Jan 2004 03:54 PST

I will accept the DJIA's opening & closing levels for both Black
Tuesday (10/29/1929) and Black Monday (10/19/1987), as well as the
advance/decline ratio for the NYSE for 10/19/1987.

Hello.

Black Tuesday 10/29/1929
DJIA open: 260.64
DJIA close: 230.07
change: -30.57

sources:
DJindexes.com Days with greatest percentage lost
http://www.djindexes.com/jsp/avgStatistics.jsp#no4
History of the Dow Jones
http://www.mdleasing.com/djia.htm

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Black Monday 10/19/1987
DJIA open: 2,246.74
DJIA close: 1,738.74
change: -508.00

sources:
History of the Dow Jones
http://www.mdleasing.com/djia.htm
Motley Fool: 1987 timeline
http://www.fool.com/Features/1997/sp971017CrashAnniversary1987Timeline.htm

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NYSE Advance/Decline - Black Monday 10/19/1987

NYSE - Advances: 52
NYSE - Declines: 1973
NYSE - Unchanged:  56
NYSE - New highs: 10
MYSE - New lows: 1315

source:
The Wall Street Journal, October 20, 1987, read via my local public library

-----------------------------

NYSE Advance/Decline - Black Tuesday 10/29/1929

As I mentioned, I couldn't come up with exact figures for this.
However, I did check the New York Times for 10/30/1929, the day after
Black Tuesday. On page 1 of that issue, an article mentions 880 NYSE
stocks losing ground.  I then checked the stock tables in that issue. 
There were so few advancing issues that I was able to do a quick
count.  I counted 54 gainers on in the NYSE stock table. Thus, my best
guess is:
NYSE - Advances: 54
NYSE - Declines: 880
based on my reading of New York York Times 10/30/1929
http://pqasb.pqarchiver.com/nytimes/advancedsearch.html

---------------

search strategy:
"history of the dow jones", 1929, 1987
230.07, 260.64, 1929
1,738.74, 1987, 508

I hope this helps.

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Request for Answer Clarification by jonnysalkow-ga on 15 Jan 2004 14:05 PST

This is great. My first time and your answer is almost perfect for my needs. 

One more tidbit will make it nirvana. Can you approximate the number
of stocks whose prices remainded unchanged on October 29, 1929?

A heads up: I will be posting a similar question about the NASDAQ fall
between its high in 2000 of something like 5048 to its low - which I
think was in 2001 of around 1387. Maybe you can get both!

Thanks - and you will get another rave review for your long list!

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Clarification of Answer by juggler-ga on 15 Jan 2004 16:03 PST

Thank you for the tip.

Based on the New York Times stock table for 10/29/1929, I'd estimate
that roughly 200 issues were unchanged.

Fast, accurate and accomodating of subsequent request.

Juggler's numbers all check with data that I have.  However, there's
one minor tidbit: on Monday 10/19/1987, the DJIA actually opened at
2046.67 -- down 200 points from the Friday close of 2,246.74.

In the 1920's there were 25 stocks in the DJIA.  In the 1980's (as
today) there were 30 industrial stocks in the average.

Best regards,

Omnivorous-GA

Thanks, Omnivorous.

Yes, 2,246.74 was the previous close, rather than, technically, the "opening."

Thanks to juggler and Omnivorous.

jonnysalkow