@joanrhys
During ETF creation and redemption peaks, order flow imbalance becomes a powerful predictor. Strong buy imbalances in the underlying signal imminent tightening of ETF discounts, while persistent sell imbalances forecast extended spreads. These signals propagate into futures basis, creating arbitrage opportunities. Traders monitoring imbalance ratios—such as buy/sell volume over depth—can anticipate short-term price corrections or continuations. Because ETF flows anchor to NAV, deviations revert quickly when order flow normalizes. Thus, imbalance analysis refines timing for arbitrage, offering an edge during heavy institutional trading sessions.
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