The LME daily warrant report for August 21 shows aluminum registered warrants at 243,950 t, down 525 t, with cancelled warrants at 2,975 t, up 525 t. Copper saw the largest single-day registered warrant jump across all metals, rising 65,525 t to 168,600 t.
Aluminum's small dip in registered warrants alongside a rise in cancelled warrants means slightly more metal is being earmarked for delivery off exchange, suggesting modest tightening of immediately available LME aluminum stocks. Copper's large registered warrant increase points in the opposite direction, with significantly more metal flowing into the LME system on the same day.