Quantitative Finance Stack Exchange is a question and answer site for finance professionals and academics. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Can anyone explain why the OHLC data I'm getting from yahoo appears to reflect stock splits during times when no significant corporate actions have occurred?

For example, I'm looking at ABT and yahoo shows a closing price jump between Dec 31 2012 and Jan 1 2013.

2012-12-31T00:00:00.000-08:00 65.5
2013-01-02T00:00:00.000-08:00 32.05

But between Oct 2012 and Mar 2013 (according to yahoo) these are the only corporate actions that occurred

DIVIDEND, 20130111,0.140000
DIVIDEND, 20121011,0.244700
STARTDATE, 20121001
ENDDATE, 20130301

What caused this price jump?

share|improve this question

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.