EMJ Capital (Eric Jackson)
Eric Jackson — Founder & CIO of EMJ Capital Ltd. Long-time activist/tech investor and prolific FinTwit/X voice (@ericjackson). Best known for the Carvana call (bought ~$3.50, later ~100x to ~$413) and a 2025 Opendoor call that ran ~190%. Runs a small (~$10M) long/short book and posts theses publicly in near-real-time, frequently moving small/mid-cap names ('the next Opendoor' effect).
Hunting asymmetric 'compounder' and turnaround/'100-bagger' setups in AI, AI-infrastructure and beaten-down tech small/mid-caps before the Street — paired with a short book against expensive/decelerating software. In AI infra his core long is the power-and-compute angle (owned power > leased capacity); pairs longs with explicit shorts (CRM, DOCU, TEAM, FIVE, ASAN).
Top holdings
long (core AI-infra long) — Signature current AI long — called a potential '10-bagger.' Thesis is owned power (~4.5GW) + AI/HPC pivot vs leased GPU capacity; he explicitly contrasts IREN's owned infrastructure against CoreWeave's lease-dependent model.
long — Bought after a Q4 2025 'blowout' print; his liquid large-cap AI-software expression.
long — Re-entered and publicly called a possible '100-bagger over the next few years'; the 2025 OPEN call ran ~190% and is the franchise trade that gave him the retail-moving 'next Opendoor' brand.
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