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V-Sum

Investing & Trading

3 technical briefings from 3 companies building investing & trading infrastructure.

Nval Technical Briefing thumbnail
Nval profile

NVAL demos pricing infrastructure for illiquid assets, starting with NFTs. Using AI and on-chain data feeds, NVAL produces fair market values for NFTs in near real time — foundational for any financial workflow (lending, borrowing, insuring, trading) on non-fungible assets that have no spot price. NVAL sits as an analytics layer between blockchains (L1s, L2s, cross-chain) and the industries building on top (gaming, sports, trade finance, accounting, lending). Mark (CTO) walks through the REST API documented with OpenAPI: a "try it out" docs UI, a Postman collection, and a CLI all return the same price prediction for a specific NFT (the demo values a Doodle at 3.3 ETH with 96% confidence, sitting between the listed price of 4.2 ETH and the highest offer of 2.8 ETH). A Chrome extension surfaces NVAL prices on OpenSea pages, and the NVAL web app shows floor price, listed price, and price history against actual trade prints. The price-history endpoint returns 52 weekly data points across a year (configurable daily). Feature importance breaks down what drives price — 96% market action for a Doodle, 72% market action + 30% accessory-trait for a CryptoPunk — giving traders a way to understand why NVAL priced an NFT where it did.

V-Sum Twenty Full overview →
Composer Technical Briefing thumbnail
Composer profile

Ben Rollert

Ben Rollert, CEO and co-founder of Composer, demos Composer — a trading app that gives retail investors access to systematic investing. Strategies are called "Symphonies" — containers for trading logic and the assets they operate on, much like an ETF is a container for a basket. The demo walks through the strategy library (featured, community, classic), Symphony fact sheets with backtests that actually model slippage and fees (rare in retail products), the visual conditional-logic editor and natural-language descriptions, live editing of conditions and benchmarks, swapping underlying assets, and Composer's fundamental building blocks (weight blocks, assets, filters, conditions) used Lego-style to build recursively nested multi-strategy portfolios like the Dragon Portfolio. Composer supports threshold rebalancing (rebalance only on drift, not calendar) and deploys to real brokerage accounts via Alpaca with fractional market orders.

V-Sum Fourteen Full overview →
DriveWealth Technical Briefing thumbnail
DriveWealth profile

John Shammas

John, product lead at DriveWealth, demos DriveWealth — the brokerage infrastructure behind Cash App investing in the US, Revolut in Europe, and a long list of wallets across Africa, South America, India, and Southeast Asia. The demo uses a sample banking app with an $845 balance to show how a customer goes from pure checking to buying $50 of Starbucks stock without leaving the app. Because the bank already holds identity data, DriveWealth\'s onboarding only collects brokerage-specific disclosures (SSN confirmation, broker/politician questions) — creating a tax-and-regulator-ready brokerage account in seconds. The account.managementType flag switches between self-directed and managed (robo-advisor) flows on the same API surface. DriveWealth was the first to offer real-time fractional shares: a $50 market order for Starbucks is recalculated against the live price so users never over- or under-spend. Shares are stored to ten decimal places (inspired by crypto UX), enabling pennies-of-Berkshire orders. Live P/L, cost basis, and market value surface in both the partner app and DriveWealth\'s admin portal.

V-Sum Two Full overview →