Bitcoin’s 30-day change in stablecoin-margined open interest on Binance reached +$840 million on August 27, compared with +$298 million on Gate, while every other tracked exchange stayed below +$200 million. The gap is wider than during earlier periods of strong open-interest growth: Binance led Gate by about 1.6x on January 17 and 1.4x on May 5, versus 2.8x in the latest reading. Binance’s figure is 8.4% above its January level, while Gate’s is 37.9% lower, creating a $542 million absolute gap. Bitcoin rose from roughly $65,000 in late July to around $79,000, a gain of about 22%. Open interest is rising on several exchanges, but the uneven scale means the rebuilding is particularly concentrated on Binance. Because open interest does not identify long or short positioning, it is not a directional signal on its own; the clearer indication is that stablecoin-margined Bitcoin derivatives positions are rebuilding across the market, with Binance showing a substantially larger increase than its peers.