Fintech Highlights — October 2025
Prediction markets went mainstream.
NYSE parent Intercontinental Exchange agreed to invest up to $2 billion in Polymarket for roughly a 20% stake — a deal that sent DraftKings and Flutter (FanDuel's parent) shares lower and signaled that Wall Street now sees prediction markets as a real threat to traditional sportsbooks. Rival Kalshi is seeing similar momentum, with about 90% of its volume now coming from sports.
Regional bank consolidation picked up.
Fifth Third agreed to acquire Comerica for $10.9 billion in stock, creating the nation's ninth-largest bank and adding heft in the Southeast and Texas. It's the kind of second-tier bank merger analysts have been calling for — and one that may be easier to get done under a more merger-friendly administration.
Big bank earnings were strong, with a warning attached.
Goldman, JPMorgan, Citi, and Wells Fargo all beat Q3 expectations on the back of busy trading and M&A activity. But JPMorgan's Jamie Dimon flagged the collapse of subprime auto lender Tricolor Holdings as a sign that "when you see one cockroach, there are probably more" — a caution worth remembering next time credit markets look too calm.
Tether kept flexing.
The stablecoin giant was reportedly in early talks to raise $15-20 billion at a possible $500 billion valuation — which would put it in OpenAI's league as one of the most valuable VC-backed companies in the world. Meanwhile Stripe was in talks to let VC backers cash out shares at a $106.7 billion valuation, still with no IPO in sight.
Also this month:
- Neptune Insurance IPO'd at the high end of its range, raising $368M;
- Wealthfront filed for an IPO of its own;
- OpenAI acquired investing-app startup ROI; Deel raised $300M at a $17.3B valuation (its ongoing legal fight with Rippling notwithstanding); and
- Stripe/Paradigm's blockchain payments venture Tempo raised $500M at a $5B valuation.