26 ms·Also a lot of shorts exist because if you are long X $1 and short Y $1 your total investment is $0.by gitfan86 5y agoAlso a lot of shorts exist because if you are long X $1 and short Y $1 your total investment is $0.Kranar 5y agoThis is false, if you're long one security and short another, your total cost basis is the sum of the absolute value.test6554 5y agoHow is that not apples and oranges. You buy one orange and eat one apple and thus everything is in its original state?