Purpose: This paper aims to examine the existence of operating cash flows asymmetric timeliness on the Egyptian environment, by applying Basu (1997) model to investigate the asymmetric response of operating cash flows to bad news versus good news. Furthermore, this paper investigates the determinants of this phenomenon, following Collins et al. (2014) and Lu et al. (2020) depend on: product pricing strategy, firm life cycle stages, and cost stickiness. Also, this paper explores the confounding effects of operating cash flows asymmetric timeliness on Basu (1997) measure of conditional accounting conservatism, following the recommendation of Collins et al. (2014) to exclude operating cash flows from earnings and rely on accruals when measuring conditional conservatism, while considering the role of cost stickiness as proposed by Banker et al. (2016). Design/Methodology/Approach: This paper employs a balanced panel of archival and time-series data, analyzed using Stata (v.17). Multiple linear regression models with Fixed Effects applied to investigate hypotheses, controlling for differences across time and industry sectors. To address issues of autocorrelation and heteroskedasticity, robust standard errors were utilized. The empirical analysis was conducted on a purposive sample of (98) listed Egyptian companies from 2009 to 2024, with estimation period starting in 2011 to facilitate computation of the research variables, using (1372) observations. Findings: The results provide an evidence of operating cash flows asymmetric timeliness in the Egyptian context, where operating cash flows exhibit a more pronounced asymmetric response to bad news than to good news. The findings further reveal that this asymmetric timeliness is influenced by operational factors beyond conditional conservatism, including: product pricing strategy, firm life cycle stages, and cost stickiness, consistent with the evidence from Collins et al. (2014) in the U.S. and Lu et al. (2020) in Australia-though the latter found no significant effect for life cycle stages. Moreover, this paper demonstrates that ignoring cost stickiness even when excluding operating cash flows from earnings and focusing on accruals in Basu (1997) model - as recommended by Collins et al. (2014), leads to overstated levels of conditional conservatism. This supports the use of modified model of Banker et al. (2016), which incorporates the effects of cost stickiness when assessing conditional conservatism using accruals or earnings. Originality/Value: To the best of the researcher’s knowledge, this paper is the first in the Egyptian environment that addresses the existence and determinants of operating cash flows asymmetric timeliness within an emerging market context. It also extends literature by analyzing how this phenomenon distorts measures of conditional accounting conservatism, particularly Basu (1997) model, through using Banker et al. (2016) framework, which accounts for cost stickiness behavior when measuring conditional conservatism based on either accruals - as suggested by Collins et al. (2014) - or earnings.