Does anybody know how come theURL:
http://chart.yahoo.com/d?a=1&b=1&c=2005&d=4&e=20&f=2005&g=d&s=gdt
gives me the wrong data at May 20 6:55 as follows:


May-20-05 73.86 74.05 73.77 73.91 996,600 73.81 
May-19-05 73.90 74.10 73.79 73.83 2,450,400 73.73 
May-18-05 73.91 74.00 73.74 73.95 1,119,200 73.85 
May-17-05 73.40 74.08 73.25 73.94 1,834,000 73.84 
May-16-05 73.40 73.61 73.25 73.60 1,010,300 73.50 
May-13-05 73.45 73.50 73.11 73.27 1,852,400 73.17 
May-12-05 73.40 73.47 73.09 73.27 1,307,900 73.17 
May-11-05 73.32 73.48 73.05 73.25 1,580,000 73.15 
May-10-05 73.48 73.60 73.25 73.32 1,605,100 73.22 
May-09-05 73.70 73.75 73.41 73.71 1,611,600 73.61 
May-06-05 73.91 74.10 73.75 73.95 921,500 73.85 
May-05-05 73.68 74.10 73.62 73.94 1,684,900 73.84 
May-04-05 73.00 73.89 73.00 73.89 1,191,300 73.79 
May-03-05 73.95 74.10 73.60 73.70 1,546,900 73.60 
May-02-05 74.20 74.20 73.90 74.08 1,630,200 73.98 
Apr-29-05 73.55 74.13 73.55 74.08 2,146,600 73.98 
Apr-28-05 74.06 74.22 73.25 73.50 2,201,300 73.40 
Apr-27-05 73.82 74.29 73.70 74.11 2,334,800 74.01 
Apr-26-05 74.18 74.25 73.87 73.87 1,102,600 73.77 
Apr-25-05 74.12 74.40 74.01 74.19 1,621,100 74.09 
Apr-22-05 74.18 74.25 74.03 74.19 1,691,200 74.09 
Apr-21-05 74.48 74.48 74.07 74.20 2,291,600 74.10 
Apr-20-05 74.45 74 

after gdt fell yesterday to below 71 in response to the recall of
their defigrillaor.
Bigchart as  well as Schwab, where I sold my holdings at 71 are
evidence of the truthfulness of tis drop in price