This paper offers a cultural analysis of the different narratives that currently frame the concept of Big Data. With specific attention to how the ethnographic community has approached Big Data, I will make the point that the ethnographic community needs to rethink what its offer is within the business world. Instead of trying to position ethnography as a discipline that provides deep insights to human behaviour (which we often call ‘the why’), while Big Data offers broad accounts based on large data collection, I make the case that both approaches should be seen as being positioned within an ethnographic space. This is because both ethnography and Big Data are interested in human behaviour and the cultural field and both are interested in generating insights. We should therefore situate Big Data and ethnography as a relationship that exists in a new epistemological field, a field that is both interpretative and data driven. This field I call 'Big Ethnographic Data'.