For the easier daily managing by a user of a set of tickers, I believe it would be a good idea to provide via email (and possibly via cell phone) the sending of the day closing prices for a set of tickers entered by a user in the same way as they are entered now.
This would mean just one transmission per day and per market, about one hour after market shut down time, of all the tickers requested by a user for this market, even for the tickers which have not altered during the day.
Another way to provide the same "easier to manage" data would be to have the capability to request that all entered tickers (even the ones not altered) are sent on an hourly basis if at least one of these tickers has been altered (instead of just sending the tickers which have altered).
The aim, using either method, is to provide in one transmission the "end of market day" values of all the tickers which have been specified by a user.
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