Joby Aviation ( $JOBY ) Shares Drop -18.7% in 30 Days as Dilution Worries Persist (See the latest news for any ticker on Tickeron.) Joby Aviation (NYSE: JOBY) shares fell roughly 18.7% over the last 30 days, from a closing price near $7.53 to about $6.12. The decline extended a broader downtrend, with the stock down approximately 38.8% over the last quarter and more than 50% year to date. A $500 million defense acquisition and a $750 million at-the-market equity program renewed investor concerns about dilution and cash burn. $ASR $UP $SRTA $OMAB $CAAP