How do I register for SpotGamma's SlackChat? SpotGamma's SlackChat is now closed. SpotGamma has transitioned exclusively to Discord. For many reasons, Discord will be a more beneficial tool for this lively and generous community of traders, and all SpotGamma subscribers are invited to join SpotGamma on Discord. SpotGamma subscribers can register to join our Discord server here. Related articles Is negative call gamma bullish? What is Call Wall Strike? How do I use Equity Hub?