Base CRSPAccess Data Structures

Data Structure	Contents
Time Series Objects	Data description information; ranges of valid data; and associated calendar information
Event Array Objects	Data description information; number of array elements; and object array
Header Objects	Data description information and object array
Calendar Objects	Data description information; ranges of valid data; calendar description information; and calendar period arrays

Stock Data Structures

Data Structure	Contents
Header Identification and Summary Data	Primary permanent identifiers; secondary permanent identifiers; security date ranges; most recent header identification and summary data information; and most recent listing information
Name History Array	Secondary identifiers; date range of name history record; identifying information
Distribution Event Array	Distribution information; factors to adjust prices and shares; dates associated with a distribution; and securities/companies related to a distribution event
Shares Outstanding Observations Array	Shares information; share observation date range
Delisting Event Array	Delist information; dates associated with delist; securities/companies associated with delist
NASDAQ Information Array	NASDAQ information array data; NASDAQ information date range
Price, Volume, and Return Time Series Arrays	Price, volume, and return time series
Auxiliary Time Series Data	Monthly alternate price and date, daily open price, returns without dividends, spread time series data
Portfolio Statistics and Assignment Time Series	Portfolio statistic and assignment time series data
Group Data	Group data; group date range

Index Data Structures

Data Structure	Contents
Index Header	Index header; index methodology description structure; index exception handling flags; partition/index subset screening structure; share code screen structure in a partition or index restriction; portfolio building rules structure; related assignment information
Index Rebalancing History Array	Rebalancing date ranges; rebalancing portfolio statistics; breakpoint information
Index List History Array	Security identifier; date range; security characteristics
Index Time Series	index summary statistics; index returns; index levels