Optiver is a market maker on many exchanges. That means we don’t merely aim to improve the markets in which we trade; we are, in fact, obligated to do so. We achieve this by continuously offering the narrowest bid-ask spread we can, which is the difference between the buying price and the selling price of a given financial instrument. In doing so, we inject liquidity into the market by ensuring there’s always a willing buyer and seller for the products we trade, which allows investors to transfer some of their risk onto us (which we’re able to offset in a multitude of ways). As a result, the markets operate more efficiently, and because we consistently quote our buying and selling prices, they also operate more transparently.