“You can’t keep a good market down”

“You can’t keep a good man down” is a popular saying from the 1880s. “‘You can’t keep a good market down.’ some gleeful broker is alleged to have written on a postcard to the federal reserve board last week” was cited in the financial sections of several July 1929 newspapers.
 
“You can’t keep a good market down” was cited in Forbes magazine in 1984 and “You can’t keep a good market down, Wall Streeters say” was cited in Business Week in 1988.
 
         
8 July 1929, The Montana Standard (Butte, MT), “Bulls Have Merry Fourth,” pg. 7, col. 5:
“You can’t keep a good market down.” some gleeful broker is alleged to have written on a postcard to the federal reserve board last week.
 
22 June 1975, The Sunday Plain Dealer (Cleveland, OH), “Following Finance: You can’t keep the market down” by John E. Bryan, sec. 2, pg. 10, col. 3:
While the first phase of the new bull market has been a long one, there have been some corrections and it appears you can’t keep a good market down.
 
Google Books 
Forbes
Volume 134
1984
Pg. 152:
You can’t keep a good market down—not even when Wall Street’s gimme-a-break dancers have been losing interest, literally and figuratively, for the better part of the past 16 months.
 
Google Books
Business Week
Issues 3041-3044
1988
Pg. 102:
You can’t keep a good market down, Wall Streeters say. And, yes, that means the junk-bond market.
 
Twitter
PinkEsq
‏@PinkEsq
New quote today from CNBC ” you can’t keep a good market down”
9:10 AM - 10 Oct 2008
 
Twitter
Zivah Ring
‏@Zivahr
You can’t keep a good market down.  Earnings will drive the next leg up as top line beat estimates.
9:41 AM - 7 Oct 2009
 
CFD Trading
U.S. Equities – How Long Can You Keep a Bad Market Up?
26 June, 2015 at 14:34 GMT By Paul Robinson
There is an old saying, “You can’t keep a good market down.” The question I am asking myself now is, “How long can you keep a bad market up?”