The closing price for International Business Machines (IBM) in September 1966 was $1.58, on September 30, 1966. It was down 0.9% for the month. The latest price is $280.97.

DATE	OPEN	HIGH	LOW	CLOSE	VOLUME
September 30 1966	$1.57	$1.59	$1.54	$1.58	631,784
September 29 1966	$1.59	$1.59	$1.56	$1.57	376,560
September 28 1966	$1.63	$1.63	$1.59	$1.59	259,408
September 27 1966	$1.63	$1.64	$1.62	$1.63	251,040
September 26 1966	$1.59	$1.63	$1.59	$1.63	200,832
September 23 1966	$1.59	$1.60	$1.58	$1.59	242,672
September 22 1966	$1.57	$1.59	$1.55	$1.59	736,384
September 21 1966	$1.60	$1.60	$1.57	$1.57	326,352
September 20 1966	$1.64	$1.64	$1.60	$1.60	338,904
September 19 1966	$1.64	$1.67	$1.63	$1.64	393,296
September 16 1966	$1.67	$1.69	$1.64	$1.64	539,736
September 15 1966	$1.61	$1.67	$1.61	$1.67	464,424
September 14 1966	$1.59	$1.62	$1.59	$1.61	456,056
September 13 1966	$1.60	$1.61	$1.57	$1.59	514,632
September 12 1966	$1.57	$1.60	$1.57	$1.60	1,297,040
September 09 1966	$1.55	$1.59	$1.55	$1.57	502,080
September 08 1966	$1.57	$1.57	$1.53	$1.54	945,584
September 07 1966	$1.58	$1.58	$1.55	$1.57	560,656
September 06 1966	$1.59	$1.60	$1.58	$1.58	301,248
September 02 1966	$1.60	$1.60	$1.57	$1.59	640,152
September 01 1966	$1.60	$1.61	$1.59	$1.60	527,184

Daily pricing data for International Business Machines dates back to 1/2/1962, and may be incomplete.