This paper is motivated by the links that continue to be forged between security pricing and accounting, building on recent findings that firms tend to be asymmetrically conservative in the timeliness of earnings recognition. The evidence is that firms in the European Union tend to recognise unrealised losses more quickly in their earnings than unrealised gains (Giner and Rees, 2001 Giner, B. and Rees, W. 2001. On the asymmetric recognition of good and bad news in France, Germany and the United Kingdom. Journal of Business Finance and Accounting, 28(9/10): 1285–1331. [Google Scholar] ; Raonic et al., forthcoming), and there is evidence of even greater accounting conservatism in the USA (Basu, 1997 Basu, S. 1997. The conservatism principle and the asymmetric timeliness of earnings. Journal of Accounting and Economics, 24: 3–37. [Crossref], [Web of Science ®] [Google Scholar] ; Ball et al., 2000 Ball, R. , Kothari, S. P. and Robin, A. 2000. The effect of international institutional factors on properties of accounting earnings. Journal of Accounting and Economics, 29: 1–51. [Crossref], [Web of Science ®] [Google Scholar] ; Givoly and Hayn, 2000 Givoly, D. and Hayn, C. 2000. The changing time-series properties of earnings, cash flows and accruals: has financial reporting become more conservative?. Journal of Accounting and Economics, 29: 287–320. [Crossref], [Web of Science ®] [Google Scholar] ). This paper investigates whether the Czech market exhibits conformity with the behaviour that has been documented elsewhere by examining the earnings/returns relationship, focusing to begin with on the impact of losses on earnings response coefficients and then considering the asymmetric timeliness of income recognition in the Czech market. The findings indicate that the Czech market is similar to more developed markets, at least in one respect: there is statistically significant evidence of different market effects of profits and losses, in that profits are more persistent than losses. However, contrary to the findings in more developed markets, there is no statistically significant evidence of earnings conservatism in the Czech market. These results are most probably due to the continuing influence of restrictive tax regulations that mitigate any tendency towards conservatism, as well as the transitional nature of the economy. A further reason is likely to be that the regulatory environment in the Czech Republic is close to the kind of stakeholder corporatism that is described by Ball et al. (2000) Ball, R. , Kothari, S. P. and Robin, A. 2000. The effect of international institutional factors on properties of accounting earnings. Journal of Accounting and Economics, 29: 1–51. [Crossref], [Web of Science ®] [Google Scholar] , who show that conservatism tends to be less pronounced in such regimes where there are fewer managerial incentives to bias current earnings. In conclusion, if changes in market prices signal good news and bad news about future risky outcomes, there is no evidence of asymmetry in the Czech market in accounting for such risks.