While markets remain relatively subdued ahead of tomorrow's nonfarm payrolls report, after several days of losses in US stocks, which have taken "sell in May" to heart and pushed the S&P500 to three week lows, overnight markets ignored the latest weak data out of China where the Caixin Services PMI was the latest indicator to disappoint (dropping from 52.2 to 51.8), and instead focused on crude, which rebounded from yesterday's post inventory-build lows and briefly printed above $45/bbl over uncertainty related to the impact of Canada wildfires on production and how long will last.