Moneyness venue overlay

Shows the same option contract's bid and ask on every venue Moneyness indexes, while you look at one of them.

Moneyness sits on the option ticket you already have open and shows what the same contract bids and asks on every venue we index, plus what staying where you are costs per contract. It reads the tape. It never touches your wallet. WHAT YOU SEE A small panel in the corner of the page, on the eleven venues we index. For the exact contract on your screen it shows every venue's bid, ask and implied volatility, which venue holds the best price on the side you are taking, how far each one sits off best, and the reading time on every figure. Two of the venues stream live. The rest are a two minute poll, and the panel says so on every render rather than implying everything is current. WHAT IT NEVER DOES It cannot see a key, request a signature, or reach an injected wallet provider. It has no permission that would let it. It learns nothing about you. No address, no balance, no position, no order. Four fields leave the browser: underlying, expiry, strike, and call or put. They travel in a request body, not a URL, so they do not appear in server access logs. It runs no remote code. Manifest V3 forbids it and we ship none, so what you install is what runs. It reaches one host, moneyness.xyz, and no other. It runs only on the venue pages named in its permissions and is inert everywhere else. It cannot be edited by the page it sits on. The panel lives in a closed shadow root, so a venue cannot reach in and rewrite the board to name itself the best bid. It never tells you to trade. It reports what other books say. Seeing a better bid elsewhere does not put your money there, and the panel does not pretend otherwise. A BLANK IS NOT A ZERO A venue that publishes no quote for a contract renders "none", never 0. A zero somebody observed and a blank nobody could fill are different facts, and printing them the same way tells you a venue is dead while it is trading. That distinction is the whole product. WHERE THE NUMBERS COME FROM Moneyness is the instrument of record for on chain options. It indexes eleven venues and thirty five underlyings and publishes what actually traded, fills rather than quotes. The extension is a window onto the same public API, which you can call yourself without installing anything. Privacy policy at moneyness.xyz/extension/privacy