SPY	The short sale volume percent (not short interest) for stock ticker SPY is 73% on May 23, 2018. The short sale volume is 20,848,420. The total volume is 28,388,484. The short sale volume percent is up 14% compare to May 22, 2018.

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The Volume and short volume are limited. It is not including all volumes from all Market.
Date	Short Volume	Total Volume	Percent
2018-05-23	20,848,420	28,388,484	73%
2018-05-22	14,642,195	24,931,692	59%
2018-05-21	15,904,961	29,015,855	55%
2018-05-18	23,479,040	38,105,512	62%
2018-05-17	17,463,449	28,271,744	62%
2018-05-16	12,946,794	21,940,186	59%
2018-05-15	27,347,061	43,435,833	63%
2018-05-14	19,298,595	26,272,780	73%
2018-05-11	16,005,993	25,417,218	63%
2018-05-10	23,969,766	35,782,412	67%

Last 5 days short percent	62.09%
Last 10 days short percent	63.64%
Last 20 days short percent	60.49%
Last 50 days short percent	56.34%