Walmart and Amazon are accelerating grocery delivery as shoppers demand faster fulfilment, according to Brick Meets Click. Walmart’s delivery sales rose 64% YoY in May, while Amazon’s grew 34%. Delivery accounted for 48.6% of US online grocery sales, up from 44.5% a year earlier, as pickup fell to 37.8%. The report said faster service is becoming a key competitive battleground. (Supermarket News)