Perpetual futures are popular because they do not expire, but the missing expiry date is exactly why funding rates matter. Binance’s futures material explains that funding helps keep perpetual contract prices aligned with the underlying asset, while Coinbase describes funding as a periodic payment exchanged between long and short positions. In practice, this means the cost of holding a trade can change even if the chart moves sideways.
When funding is strongly positive, long positions are usually paying shorts. That can be a warning that the long side is crowded and that a trade needs a clearer edge or a shorter holding period. When funding is negative, shorts may be paying longs, but that does not automatically make a long position attractive; the market may be pricing real downside stress. The better question is whether funding, basis and open interest agree with the trader’s thesis.
A simple checklist helps. Before entering a perpetual trade, check the current funding rate, time until the next funding timestamp, recent funding history, mark price versus index price, liquidation distance and planned holding period. If the expected funding cost is larger than the trade’s realistic edge, reduce size, switch to spot, use dated futures if appropriate, or wait for a cleaner setup.
Sources: Binance Academy on funding rates; Binance Futures funding-rate introduction; Coinbase Learn on perpetual-futures funding.
Risk notice: This article is for trading education only. Perpetual futures involve leverage, liquidation risk, changing funding costs and exchange-specific rules. It is not investment advice.
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