Among stocks priced under $100 per share currently, few are better buys than The Trade Desk (NASDAQ: TTD) and Datadog (NASDAQ: DDOG). As the advertising industry moves toward a more consumer-targeted model, The Trade Desk's software becomes essential to any advertiser's strategy. Instead of tracking cookies (which are being phased out), the open-source code associates an email address with an anonymous ID, allowing The Trade Desk to track the consumer from platform to platform more accurately and securely.