Ticker AMRS
From 2014-10-30 00:00:00
To 2014-10-30 00:00:00
Security Type Equity
Market USA
Resolution Minute
Status Resolved

I'm trying to figure out where the approximately 3.00 price came from.  The actual trading range for 10/30/2014 is:

Open  45.30

High  47.10

Low  44.25

Close  44.55

Volume  9500

This is according to finance.yahoo.com.  Google doesn't have the daily resolution but shows it at 45.30 on the following day (10/31/2014).

 

The company hasn't had any splits or dividends so there shouldn't be any price adjustments as far as I know.  The very recent prices for AMRS appear to be correct.  When I compare your long-term price graphs with yahoo's, they are quite different although they do have some similarities in overall shape.

 

 

https://www.quantconnect.com/data/file/equity/usa/minute/amrs/20141030_trade.zip/20141030_amrs_minute_trade.csv