Stock splits

What it is

A stock split changes how many shares exist without changing what a holder owns in total. In a 4-for-1 split a holder gets four shares for each one held and the price falls to a quarter. A reverse split goes the other way: in a 1-for-10 split ten shares become one at ten times the price. Companies split for several reasons, including keeping the share price within an exchange's minimum or making shares easier to buy in small amounts.

Who files it

The company announces a split and the exchange sets the day it takes effect. We work the list out from Tiingo daily price data: a split is a day on which Tiingo reports a change in the number of shares per share held. Market Data from Tiingo.com.

How current

We update the list every day, after the day's prices arrive. It lists splits that have taken effect; announced splits that are still ahead are not in it.

Worth knowing

A split changes the share count and the price, not the value of a holding, and says nothing by itself about how the business is doing. The list covers every US-traded symbol, including ETFs and foreign companies' shares that trade over the counter, and not every symbol has a page here. Small stock dividends paid in shares are not splits and are left out. Dates are the day the new price first traded, as Tiingo reports it. History starts in 2012, with some older splits kept from an earlier source.

This list is worked out from Tiingo daily price data. Market Data from Tiingo.com.