Ukrainian President Volodymyr Zelenskyy's chief of staff Andriy Yermmak said on Thursday that there was progress in ceasefire negotiations with Russia and expressed "careful optimism", reported Axios's Barak Ravid via Twitter. Barak said more would be explained in an upcoming Axios article.
After days of apparent deadlocks in talks, headlines such as this might well contribute to an upturn in risk appetite. That hasn't been the case just yet, with US equities broadly unreactive thus far to the latest news.