Group 1 - US stock market will be closed for one day on September 1 due to Labor Day holiday [1] - CME's precious metals and crude oil contracts will end trading early at 02:30 AM and 01:00 AM Beijing time respectively on September 2 [1] - ICE's Brent crude oil futures will also have early trading closure at 01:30 AM Beijing time on September 2 [1]

Group 1 - The core point of the article indicates that speculators reduced their net long positions in ICE Brent crude oil by 80,577 contracts, bringing the total to 192,598 contracts as of the week ending June 24 [1]

Group 1 - The core point of the article indicates that speculators' net long positions in ICE Brent crude oil decreased by 4,379 contracts to 158,950 contracts during the week of May 27, marking a significant shift in market sentiment [1] - The absolute value of long positions reached an eight-week high, while the absolute value of short positions hit approximately an eight-month high, suggesting increased bearish sentiment among traders [1]