The liquidity crunch at New World Development (NWD), one of Hong Kong’s biggest developers, is a blemish on the resurgent housing market, threatening to shake confidence among homebuyers and trigger a “downside scenario” in home prices, according to S&P Global Ratings. The developer deferred coupon payments on four series of perpetual bonds after months of speculation about its finances, sending a poor signal to creditors about its default risk. It surprised investors last month by not redeeming...