With liquidity still in short supply in equities and exchange-traded funds after the reopening of markets Wednesday, NASDAQ cancelled all trades in the first two minutes of activity in the Vanguard S&P 500 Growth ETF (VOOG).

The cancellation applied to issues that were selling below $65.87 and cannot be appealed, the exchange operator said, in a market notice. It said: "MarketWatch has coordinated this decision with other UTP Exchanges. NASDAQ will be cancelling trades on the participants’ behalf."

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