I have, which will surprise you not a little, been speculating — partly in American funds, but more especially in English stocks, which are springing up like mushrooms this year … [and which] are forced up to quite an unreasonable level and then, for the most part, collapse…In this way, I have made over £400 and, now that the complexity of the political situation affords greater scope, I shall begin all over again.
It’s a type of operation that makes small demands on one’s time, and it’s worthwhile running some risk in order to relieve the enemy of his money.
Had I had the money during the past 10 days, I’d have made a killing on the Stock Exchange here…
The time has come again when, with wit and very little money, it’s possible to make money in London.
Marx
https://www.marxists.org/archive/marx/works/1864/letters/index.htm
Its quoted everywhere, but I think its in here as I found the date to be 1864, unforutnatly it seems copyright stricken.
Its a letter to ‘Lion Philip’ - 1864
I will keep looking for a proper source.
It is on page 186-187 of this book, which has all the letters of Marx
“From letter to Lion Philips (in Zalt-Bommel) London, June 25, 1864”