APH stock split history
Every Amphenol split we have on record, with the share price 30 days, 90 days and one year after each one. Prices are split-adjusted, so the returns below are comparable across the split.
What the Sep 3, 2026 split told us
All APH splits
Returns are measured from the closing price on the split date.
A dash means that horizon has not elapsed yet. Split data from Yahoo Finance; ratios below a 40% change are treated as share-count adjustments rather than splits and are not listed.
APH split questions
How many times has APH split its stock?
We have 3 APH splits on record. The most recent was a 2-for-1 forward split effective Sep 3, 2026.
Did APH go up after its stock split?
The most recent APH split is too new for a 30-day figure. A split does not change a company's value on its own, so what happens next reflects the business and the market, not the split.
Do I need to do anything when APH splits its stock?
No. Your broker adjusts the share count and cost basis per share automatically, and a standard split is generally not a taxable event in the US. Open orders and price alerts set at pre-split prices may need updating.
Split history from Yahoo Finance. Returns are past performance and not a prediction. Not financial advice.