what industries have the highest roi 
historically the average roi for the s p 500 has been about 10 per year 3 within that though there can be considerable variation depending on the industry during 2020 for example many technology companies generated annual returns well above this 10 threshold meanwhile companies in other industries such as energy companies and utilities generated much lower rois and in some cases faced losses year over year 4 over time it is normal for the average roi of an industry to shift due to factors such as increased competition technological changes and shifts in consumer preferences the bottom linereturn on investment is a metric that investors often use to evaluate the profitability of an investment or to compare returns across a number of investments it is expressed as a percentage roi is limited in that it doesn t take into account the time frame opportunity costs or the effect of inflation on investment returns which are all important factors to consider 