|"Posting" is the process of recording the current daily
prices (seen in the quotepage) into the daily database as the current
daily bar. Posting Time is specified in the Session Preferences and is
generally setup to occur a minute or two after the session closes.
This process is not really needed in the end-of-day case. If you're just
downloading your daily data after the session closes, you really have no
need to "post". You can turn off this posting by going to "Setup:
Preferences: Sessions", selecting the session of interest, unchecking
the "Post Time" checkbox, and then clicking the "Apply" button.
During trading hours, the daily historical data stored in the
Investor/RT database typically is up to date only to the previous
trading day close. When IRT is used real-time, the daily historical
database is NOT updated tick by tick during trading hours, this would be
extremely inefficient. Instead current open, high, low, close, and
volume is kept up-to-date in memory for display in quotepages and
charts. During trading hours, daily charts that have a "to present" view
period will show the daily bars from the historical data base PLUS one
"in progress" bar, the bar being formed in real-time. Each trading
session setup in Investor/RT has a session start, stop, and posting
time. The posting time is typically equal to or just a few minutes after
the session ending time. At the designated posting time, the memory
resident OHLCV data is "posted" (recorded) into the daily historical
data, adding one daily bar. Posting can be performed manually using the
Record Closing Prices command in the Control Menu under Data Management.
This will "post" all trading sessions. Alternatively, posting can be
performed on a session by session basis using Setup: Preferences:
Sessions -- pick the session you wish to "post" from the list and click
the Post Now button.
End-of-Day Investor/RT users typically do not need the posting feature
at all, in which case, you can turn off the automatic posting feature
for each session in Setup: Preferences: Sessions. If you typically
perform a "historical download", downloading 1 or more days of daily
historical data each day, this data is placed directly into the
Investor/RT daily database, no posting required. Investor/RT end-of-day
users with Dial/Data can obtain closing quotes in bulk using the Bulk
Download feature in the Download Data window. These dated bulk download
files contain OHLVC data for a particular date. The data is placed
directly into the Investor/RT daily database, no posting required. If
you use Dial/Data to fetch "Current Quotes" or if you have an external
source of current quotation data that you use with Investor/RT's
"Current Quotes/Other Data" Import feature, the imported data does NOT
go immediately into the database. Just like real-time data, such
imported data is placed into memory for display in quotepages and
charts, but is not added to the daily database until a "posting"
operation is performed. Thus, you can avoid the need to "post" by
performing a historical download or a historical import. Keep in mind
that historical data importing requires that the date be specified in
each "line" of the imported data file along with the closing prices and
volume data for that date. If you have current quotation data with no
date present in the file, you can import the data as "Current Quotes"
and then perform a post history to record the data in the daily
database. The posting process uses the current date to record the daily
bar, except on weekends when the previous trading day's date (Friday's
date except when Friday was a holiday) is used for posting.