<sod >Â  Toyota shares plummeted within minutes of a negative tweet in January, vowing to stop the firm from moving to Baja California in Mexico, causedÂ the company to lose around $1.2bn in value.< eod>< sod > Â  Toyota shares plummeted within minutes of a negative tweet in January in which Mr Trump vowed to stop the firm from moving to Baja California in Mexico, causing the company's value to drop by around $1.2bn.< eod>