I think 6 Nov 2001 was the FOMC's last 50 bp move. They went 25 at the following meeting and haven't cut since. <A HREF="http://www.federalreserve.gov/fomc/previouscalendars.htm#2001" target="_new">http://www.federalreserve.gov/fomc/previouscalendars.htm#2001</A> <A HREF="http://www.federalreserve.gov/boarddocs/press/general/2001/20011106/" target="_new">http://www.federalreserve.gov/boarddocs/press/general/2001/20011106/</A>