Warrants
Concept
Common stock purchase warrants, which were forerunners to options, and what Thorp learned to value mathematically.
Mentioned in 2 videos
Videos Mentioning Warrants

Legendary Trader Edward O. Thorp on Beating the Stock Market and Blackjack
Tim Ferriss
Common stock purchase warrants, which were forerunners to options, and what Thorp learned to value mathematically.

E119: Silicon Valley Bank implodes: startup extinction event, contagion risk, culpability, and more
All-In Podcast
These were attached to venture debt loans by SVB, giving the bank equity upside, which proved to be a source of distress when companies failed.