> For the complete documentation index, see [llms.txt](https://elite-node.gitbook.io/elite-node-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://elite-node.gitbook.io/elite-node-docs/mev-strategy-and-execution/the-0-block-opportunity.md).

# The 0-Block Opportunity

Why Same-Slot Execution is Everything.

In high-frequency on-chain trading, there are only two relevant outcomes: execution in the same block as the target transaction (0-block), or failure. Execution in the next block (N+1) is a guaranteed loss, as the arbitrage opportunity created by the initial trade has already been captured and exhausted by other MEV actors.

**Back-running:**\
This is the baseline strategy, where your transaction lands in the same 0-block as the insider's but executes **after** it. This allows you to capitalize on the immediate price and liquidity impact. It is the minimum standard for any serious MEV operation.

**Front-running:**\
This is the pinnacle of MEV. Your transaction executes in the same 0-block, but **before** the insider's. You don't just copy the trade—you capture a better execution price and maximize alpha. This requires not only speed, but tactical superiority in the Jito auction.

Our framework is architected to be source-agnostic. While Geyser provides a reliable baseline for our MVP, our entire alpha model is predicated on the low-latency, pre-finalization data that only Shredstream can provide. We believe that leveraging Shredstream for competitive, non-toxic MEV strategies is essential for market efficiency.


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