MGNX Bears Stir Into Earnings

[MacroGenics](/s/us/mgnx) reports Thursday after the bell. Three separate signals are flashing at once — and they don't all agree.

## Short Sellers Make Their Move

SI hit 6% of free float on May 13. That's up 25% in a single day and 28% on the week. It's the biggest one-day jump in weeks.

The timing is deliberate. Earnings land May 15. Short sellers are positioning now.

Days to cover stands…