Is it likely that there was a leak on the CPI data yesterday?

I like to watch the markets when important economic data is released, and up until yesterday, I'd never actually seen this happen. Before the CPI data was released, the market moved up 1% in the minute beforehand.

Looking into the data, it looks like the whole move came about 4 seconds before the data was released, and in these 4 seconds, the index jumped over 1%. This doesn't look like speculation, since such a move would be placing a lot of risk on the speculator, especially if they didn't know what the data would say. What makes it even more interesting is the fact that PPI had just shown higher, which would've made it more sensical for a logical speculator to bet on higher inflation.

Does anyone know from looking at twitter at the time if there was a leak, or if the release came earlier than usual? I've never known it to release earlier than 1:30pm on the dot.