A dog that didn't bark proved a market mover on Monday.
And not the one that was on holiday. US financial markets are closed for the Independence Day celebrations.
Many investors had been bracing for a rise in interest rates in China... which never happened.
In failing to raise rates on Friday, China broke a trend of raising rates every other month since October. (Although there are residual fears that an increase might yet come to pass in a week's time or so.)
And borrowing costs in China are viewed as having a big factor in determing commodity buyers' willingness to splash out in a country with such a huge appetite for raw materials.
That helped boost sentiment among commodity investors, as did a broadly improved financial market mood.
Tokyo's Nikkei share index crossing 10,000 points for the first time in two months although, in closing up 1.0%, it ended just below.
On the Zhengzhou exchange,
In Kuala Lumpur,
"Although supplies are improving after the low production season, the post-winter global supply of natural rubber has not seen a normally expected seasonal rise," Ker Chung Yang, at Phillip Futures in Singapore, said.
"According to Association of Natural Rubber Producing Countries, the post-wintering supply situation could be due to rains, damage due to overtapping of trees to take advantage of abnormally higher prices earlier in the year and ageing trees."