Line shopping
The same position is rarely the same price. Line shopping — always taking the best available number — is the lowest-effort, highest-certainty edge in trading.
Every cent of price is edge
Two brokers offering 1.95 and 2.05 on the same outcome pay differently for an identical position. Over hundreds of positions, consistently taking the better number compounds into a meaningful, risk-free uplift in returns.
Unlike picking winners, line shopping doesn't require being right more often — only paying less for the same position.
Why the gaps exist
Brokers price independently, move at different speeds, and lean toward different sides as their own customers position. Those differences open small windows where one broker is simply more generous than the rest.
The softer, earlier or more niche the market, the wider those gaps tend to be.
Doing it without ten tabs open
Manually checking dozens of brokers per position is slow and error-prone, and the best price keeps moving. A comparison engine that scans them at once turns line shopping from a chore into a reflex.
Yoseri compares every market across 100+ brokers and surfaces the best available price automatically.
Theory is nice. Edges pay.
Yoseri does the pricing, edge and portfolio math for you — free to start, no card.