Amphenol (APH) slumped 48.7% to $82.07, a move of a size this stock sees at most a few times a year, on $836m of turnover. 49.5% of it was already in the opening print.
The price now sits near the bottom of its twelve-month band of $82.07 to $176.32, only 0% up from the floor. That floor was printed today on September 3, 2026; the peak is further back, June 30, 2026, 47 sessions ago.
The stock is down 49.1% over five sessions, down 52.1% over a month, down 30.7% over the year. It closed below its thirty-day average price by 49.0%.
Intraday the stock covered 3.4%, in line with its 3.5% thirty-session norm, so the move arrived without unusual swings. The close held 97% of the way up the day's range into the bell. It was the 2nd session running lower.
At $201bn this is one of the largest industrials names on the site, 5 of 201 by size — so its move carries weight in the sector reading itself, which came to +0.0%.
From an open of $80.82 the price ranged down to $79.33 and up to $82.16 before closing on $82.07. That is 0.0% above the year's $82.07 floor and 53.5% under its $176.32 ceiling.
Turnover of $836m compares with $530m on an average session for this stock. Today was the sharpest single session this stock has printed in the past year.
Recent form has been the other way, 15 of the last thirty sessions closing down against 14 up. Its strongest single day in the past year was +7.3% on June 9, 2026, its weakest -48.7% on September 3, 2026.
Its size-neighbours in the sector did not follow — GE Vernova (GEV) +2.2% and Boeing (BA) +0.8% — which argues for something particular to this company. APH placed 118th of 986 on money traded.
This text was generated automatically from the closing data. It contains no forecasts and no investment advice — only what the numbers say. Do your own research.