costco stock return monthly

Costco Wholesale (COST) had its best month since November 27, 1985 in November 1990, returning 30.6%.

ASSET	MONTH	% RETURN
Costco Wholesale (COST)	November 1985	7.6%
Costco Wholesale (COST)	December 1985	-1.05%
Costco Wholesale (COST)	January 1986	8.11%
Costco Wholesale (COST)	February 1986	22%
Costco Wholesale (COST)	March 1986	-8.46%
Costco Wholesale (COST)	April 1986	-6.67%
Costco Wholesale (COST)	May 1986	21.43%
Costco Wholesale (COST)	June 1986	-0.74%
Costco Wholesale (COST)	July 1986	-22.14%
Costco Wholesale (COST)	August 1986	-2.02%
Costco Wholesale (COST)	September 1986	-26.04%
Costco Wholesale (COST)	October 1986	16.44%
Costco Wholesale (COST)	November 1986	16.05%
Costco Wholesale (COST)	December 1986	7%
Costco Wholesale (COST)	January 1987	7.41%
Costco Wholesale (COST)	February 1987	-5.22%
Costco Wholesale (COST)	March 1987	1.86%
Costco Wholesale (COST)	April 1987	-18.18%
Costco Wholesale (COST)	May 1987	-4.55%
Costco Wholesale (COST)	June 1987	12.08%
Costco Wholesale (COST)	July 1987	-4.04%
Costco Wholesale (COST)	August 1987	4.3%
Costco Wholesale (COST)	September 1987	0%
Costco Wholesale (COST)	October 1987	-36.46%
Costco Wholesale (COST)	November 1987	15.25%

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