Poor earnings by China’s tech giants show that it may still be a falling-knife market that could hit investors rushing to cash in on the recent upgrades. A man walks by a mural depicting an iconic financial market bull statue near the central business district in Beijing.com missed the market’s earnings consensus by a wide margin in their first-quarter performance Alibaba is expected to post a 273 per cent gain in earnings, after four consecutive quarters of contraction, while Meituan’s profit is seen falling 18 per cent Follow your favourite topic and get notified A man walks by a mural…