Question: What was the change in opening price compared to the previous closing price (in dollars, unadjusted) on the effective date of Apple Inc.'s (AAPL) most recent stock split? What was the split ratio? (Round to two decimal places)
Answer: The stock price (unadjusted) changed by -$371.65. 
The split ratio was 4:1. 
Category: Complex_Historical_Investigation(Global)