I really have no clue, no ability to produce any meaningful estimate.
Numbers are sparse, hidden, conflicting with what Abbvie mentioned earlier versus what is reported weekly..
I am not seeing a lot of people posting about their Abbvie TX, but I also don't think that is a useful measuring tool.
I also think the numbers may be disappointing this first quarter, for many impatient investors, but they will start showing much more promise as the year rolls on.
GILD's OTOH may be getting close in the USA to what that private payer system may be able to handle. (GILD's investors may later be sad that RX's stop going up and up and up) : )
Working backwards though..... if Abbvie said 2 million rate at the end of the year 2015 (which could be conservative) I would expect the 4th Q to be much higher than the first quarter. Also I have heard that some initial applications for TX were denied (as has been common for various companies treatments). The 1st quarter may be a disappointment but it may not be a good ruler for what ABBV/ENTA will ultimately do in 2015.
I think 20% market share is high for 1Q. 10% would be a fine start, but it won't stay at that 10% for the year.
This is way higher than reported scripts, and way under the year end guidance Abbvie provided.
But I'm as unqualified a guy to ask as you can find.