Both yes and no. For most exchanges: HF traders are big data consumers and they _have_ to have all the orderbook daa, so they're big customers of exchanges. Th

Both yes and no. For most exchanges: HF traders are big data consumers and they _have_ to have all the orderbook daa, so they're big customers of exchanges. They also pay for stuff like colocation. Many exchanges also provide rebates for liquidty providing orders, which HF traders are incentivised to use. One notable exception is the Investors Exchange (IEX), are vocally anti-HF.