The current institutional shareholding score of Southwest Airlines Co is 10.00, ranking 1 out of 22 in the Passenger Transportation Services industry. The latest institutional shareholding proportion is 97.92%, representing a quarter-over-quarter decrease of 4.69%. The largest institutional shareholder is ETHSX, holding a total of 2.69M shares, representing 0.64% of shares outstanding, with 2480.65% increase in holdings.