The Futures scanner covers two related plays on perpetual contracts: cross-exchange futures spreads (the same perp priced differently on two exchanges) and basis (the gap between a coin's spot and its own futures on the same exchange). Both are NET — already minus fees.

⚠️ Educational, not financial advice. Futures use leverage — watch liquidation margin.

The same perpetual (say BTC/USDT) can trade at slightly different prices on two exchanges. You buy the cheaper perpand sell the dearer one, capturing the gap. Columns:

• Buy @ / Sell @ — the two exchanges and their perp prices.
• Spread / Net / Net profit — gross gap, after-fee gap, profit estimate.
• Age — how long the spread has held.

Use the exchange filter to keep only the pairs of venues you actually trade on.

Basis is the difference between a coin's spot price and its futures price on the same exchange. When futures trade above spot, you can buy spot + short the future and lock the gap as it converges — a delta-neutral "cash-and-carry" trade. Columns show the spot price, the futures price and the spread between them.

• Sort by Net — leverage magnifies both profit and fees, so the after-fee number is what matters.
• For basis trades, pair it with Funding Radar: a positive basis often comes with funding you also collect.
• Keep position size within safe margin — a sharp move can liquidate the perp leg before convergence.