The top three labels hold 59.88 percent of the one-week window, against 57.59 percent on 29 August. The one-month and three-month windows barely moved, so the change sits in the recent sample rather than the trend.
Corrected · This entry first read 59.86 percent. The preserved receipt for that capture is 609 of 1,017 blocks, which is 59.88 percent. The snapshot and the page were always right; the figure was mistyped here.
Sources
Pool block share
Chain + Heuristic · mempool.space’s pool labels for three windows, read once a week and filed.