Before the trains of thought have been firmly laid down, we ask in this article about the very nature and histories of the speculative of the speculative-materialist turn. We do this from the intertwined interfaces of curious feminist materialisms, foregrounding sexual difference, post-positivist critique and posthumanist performativity such as is being done in various strands of feminist theory today. The question of speculation plays a constitutive role in feminist critique and in several new or neo-materialist traditions. In fact, many interesting (...) materialisms—Marxism, French feminism—can be named ‘speculative’. We argue that in spite of what the recent ‘speculative turn’ professes, speculative materialisms have a complex genealogy. Speculation functions transversally in a materialist genealogy -connecting the archive of feminist approaches in particular. In order to be able to imagine a different world we need to think through a stifled and sexually differentiated present from which a qualitative shift and political breakthrough can be formulated, and hopefully achieved. However, in what is currently called ‘speculative realism’ or ‘object-oriented ontologies’ neither speculation nor the speculative are reflected upon as a heritage from and alliance with feminist and politically materialist positions. What are the onto-epistemological stakes of this body of work? And what ethico-political horizons are drawn here? We stand speculative before such turn. (shrink)