JCDecaux floated in late June of this year, but has since seen its stock price fall by nearly 50%.
Shares went on sale at €16.50 (£10.42) -- already down from the €21 (£13.27) price the company had originally planned for the offering. Yesterday, they had fallen to their lowest price to date, €8.50 (£5.37).
The IPO was undertaken at a volatile time with the aim of reducing the firm's debt. It was oversubscribed by 1.5 times, despite analysts' warning at the time that there was little chance of the share price rising.
Jean-Francois Decaux, co-chief executive of JCDecaux, told the Financial Times that the firm was considering a buy-back "but first want to be sure that it would help the share price and would to adversely affect liquidity in our stock".
He also predicted that, despite the downturn in the advertising market, JCDecaux's third-quarter results would show double-digit revenue growth.
JCDecaux has a presence in 3,200 cities in 38 countries, and owns ad sites in 152 airports.
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