The popular host can’t claim credit for the trade, though. The idea wasn’t his. He piggybacked off another successful investor who had a history of picking winners.
If you give someone a piggyback, you carry them high on your back, supporting them under their knees. They give each other piggy-back rides. Piggyback is also an adverb. My father carried me up the hill, piggyback
haul by railroad car haul truck trailers loaded with commodities on railroad cars ride on someone's shoulders or back on the back or shoulder or astraddle on the hip; "she carried her child piggyback"
Rights given to an investor or group of investors to register previously unregistered securities in the event of another registration by the issuing firm