US stock markets closed at fresh highs on Monday amid otherwise-lacklustre global markets.
The S&P 500 rose 0.2 percent, as did the MSCI world equity index.
However, oil fell. Brent crude settled 1.37 percent lower while US crude fell 1.55 percent.
The US 10-year Treasury yield declined 1 basis point to 1.585 percent while the 10-year Bund yield fell 3 basis points to -0.023 percent.
While US stocks remain resilient, the run of record highs for the US stock market "doesn't make much sense", distressed debt specialist Marc Lasry told CNBC on Monday.
However, Lasry said that the market may be signalling a stronger-than-expected US economy.
Indeed, even the usually-bearish John Hussman wrote on Monday that while stock valuations indicate roughly zero nominal total returns for the S&P 500 on a 10-12 year horizon, "our near-term outlook is rather neutral, largely because enough trend-following components have improved".