However I have looked at the historical data on Sahara Energy and it may not meet the basic Technical Analysis criteria to be added to the data base. Being a penny stock with low volume and many days at a time without trades its not really suitable for Technical Analysis.
Remember data costs money to purchase and then there is the maintenance on that data. StockCharts is primarily a Technical Analysis charting site and that is their goal on applicable stocks.
That said if they do decide to add the data, it usually takes a few days, its not instant.