T-Mobile US (TMUS) has the highest short interest by a mega-cap US stock, with 3.25% of float sold short (16.651M shares).
![money illustration](https://cdn.statmuse.com/finance/asset_img/kanedama-cyborg-01-min--fc2wcyxt.png)
T-Mobile US (TMUS) has the highest short interest by a mega-cap US stock, with 3.25% of float sold short (16.651M shares).
Mega-cap stocks are treated as having a market cap of $200B+.