StockX — the marketplace that built its name on verified resale — is finally entering the trading card live-selling race, and its first dedicated trading card seller goes live Sunday night with a stream built around Pokémon sealed packs.

Replay Sports Cards, a Tampa-based full-service shop that handles buying, selling, trading, and grading, will launch on StockX Live on August 16, according to an announcement published Thursday. The debut stream runs from 10 p.m. to midnight ET, hosted by Jared Gutstein and Ben Miller, with giveaways and auctions focused on Pokémon sealed packs. The news marks the first time trading cards have been added to StockX Live since the platform launched July 30 with real-time auctions, giveaways, and live buyer-seller interaction.

StockX says the platform connects buyers and sellers with its existing audience of more than 30 million unique monthly visitors — a company-reported figure, not an independently audited number. For Replay, the partnership is a second live-selling home: the shop has built a live-streaming presence that combines commerce with education and real-time interaction, and its co-founder Mike Martin framed the deal as a chance to "connect with collectors in a live, interactive way" on a marketplace collectors already trust. Steve Halupka, Director of Collectibles at StockX Live, called Replay "a natural fit," citing its reputation for making the hobby "approachable, engaging, and community-driven."

Analysis: The significant part of this announcement is the composition, not the headline. Replay is a physical shop with a grading operation and an existing live audience; StockX is a marketplace that owns no inventory. That pairing — a marketplace supplying the audience and a dealer supplying the live show and the stock — is the same division of labor that has defined live selling on every platform that has tried it. What is genuinely new here is StockX itself: it is the largest marketplace to enter live selling that the hobby has not already covered in depth, and it chose Pokémon sealed packs as its trading card entry point rather than singles or breaks. The blog's prior live-commerce coverage — the marketplace race in CASE #0100 and Whatnot's Series G in CASE #0244 — is about platforms already in the arena; this is a new entrant arriving with a sealed-product focus.

What the announcement does not say is worth noting too. No figures were released for what StockX Live's trading card vertical is expected to generate, and nothing in the release compares StockX Live to any rival live platform — so this launch should not be read as a verdict on Whatnot, Fanatics Live, or eBay Live. The company-reported visitor figure speaks to StockX's existing scale, not to how many of those visitors will buy cards live.

For collectors, the practical takeaway is simple: the sealed-pack giveaway-and-auction format that broke live selling wide open on other platforms now has another venue, and it goes live Sunday night. Replay says it intends to apply its community-first approach to the StockX Live experience.

The bottom line: StockX becomes the latest — and the largest — marketplace to bring live trading card selling into its marketplace, and it is opening with a Pokémon sealed-pack stream. The debut is Sunday, August 16, from 10 p.m. to midnight ET.

Confidence note: This article is based on the Replay Sports Cards announcement published via Franchising.com on August 14, 2026, which was read in full. Quotes from Mike Martin and Steve Halupka are from that release. StockX's 30-million-visitor figure is the company's own claim, not an audited figure. The Analysis passages are the blog's interpretation, not findings stated in the announcement.