Automated Spread Management
- An HFT fund described an automated system that adjusts quotes during spikes by detecting depth erosion and peer widening. - Fibonacci Capital says the logic reacts within sub-seconds to maintain liquidity without human intervention. - The post emphasizes pre-set rules for sub-second responses and continuous liquidity management in volatile markets. (x.com)
High-frequency trading firms make markets by posting buy and sell quotes, then changing those prices in milliseconds as the order book thins out. (sec.gov) In a July 2026 post on X, Fibonacci Capital said its system widens or shifts quotes automatically when it detects “depth erosion” — fewer resting orders near the price — and “peer widening,” when other market makers back away. (x.com) Fibonacci describes itself as a high-frequency trading firm and market maker focused on Web3 markets, and exchange partners including MEXC, Bitget and Biconomy have said the firm provides liquidity and order-flow analytics on their venues. (grandnewswire.com) (bitget.com) (biconomy.zendesk.com) The mechanics are simple in concept: a market maker earns the spread between bids and offers, but it risks getting hit by faster traders when prices jump. When visible liquidity disappears, keeping quotes unchanged can turn a small spread into a fast loss. (web.stanford.edu) (bis.org) That is why firms hard-code rules for stress. Fibonacci said the response happens in sub-seconds and without human intervention, which matches how modern market-structure rules and trading technology are built around machine-speed decisions. (x.com) (sec.gov) Regulators have spent years studying what happens when those systems pull back too fast. In the May 6, 2010 Flash Crash, the Securities and Exchange Commission and Commodity Futures Trading Commission said many automated liquidity providers temporarily paused during sharp declines, worsening a second liquidity crisis in equities around 2:45 p.m. (sec.gov) (cftc.gov) Research on high-frequency trading reaches the same split conclusion. Studies cited by the Bank for International Settlements, Congress and academic papers say fast traders often narrow spreads and add depth in normal conditions, but can also cancel quotes and reduce displayed liquidity during stress. (bis.org) (congress.gov) (aemps.ewapub.com) Fibonacci’s post frames its system as the opposite of a full retreat: keep quoting, but at prices adjusted to thinner books and wider peer markets. That approach aims to stay in the market during volatility while limiting the risk of being picked off by sudden moves. (x.com) (flowtraders.com) The thread lands at a moment when crypto exchanges are leaning harder on specialist market makers to stabilize newer tokens and fragmented order books. Fibonacci said in November 2025 that it was active on more than 40 centralized exchanges and executing more than $100 million in daily trading volume. (grandnewswire.com) The core claim is not that humans can trade faster in a spike. It is that the spread itself can be managed by preset code, one quote update at a time, before a person could click a mouse. (x.com) (sec.gov)
