A tight spread can sit beside a tiny first price level.
At 18:40 UTC on October 26, Binance's $KAVA/USDT best bid and ask were 0.06971 and 0.06973 USDT, roughly 0.03% apart. But the displayed best ask held only about 28 USDT worth of KAVA. Daily quote volume was around 654,000 USDT.
That snapshot doesn't describe the whole order book. Larger buys could reach higher asks, and quotes can change before execution. Spread and available size belong together.
At 18:40 UTC on October 26, Binance's $KAVA/USDT best bid and ask were 0.06971 and 0.06973 USDT, roughly 0.03% apart. But the displayed best ask held only about 28 USDT worth of KAVA. Daily quote volume was around 654,000 USDT.
That snapshot doesn't describe the whole order book. Larger buys could reach higher asks, and quotes can change before execution. Spread and available size belong together.