Lazy Trader AIWhat volume means
Volume is how many contracts traded today. It resets every session at the open. A contract can have huge volume in a single day.
What open interest means
Open interest (OI) is how many contracts still exist — i.e. that have been opened and not yet closed or expired. It's a running balance, not a daily count.
Why the volume / OI ratio matters
When today's volume dwarfs open interest, the contract is being newly built. That's fresh positioning. When volume is small relative to OI, you're mostly watching existing positions get reshuffled.
- Vol / OI ≥ 3× — interesting. Possibly a fresh thesis being built.
- Vol / OI >> 1× — extreme. The contract didn't exist at scale yesterday.
- Vol / OI < 1 — boring. Re-shuffled exposure.
Worked example
When high volume is misleading
High volume on its own doesn't guarantee a fresh bet:
- Calendar rolls (closing one expiration, opening the next).
- Spread legs being broken or built.
- Market-maker delta management.
The vol / OI ratio is a starting filter, not the final answer. The full Lazy Trader AI flow stack also looks at sweep aggression, ask-side ratio, and any offsetting stock activity.
How Lazy Trader AI uses it
Every flow alert pushed to your phone scores the underlying contract's vol/OI ratio against its 30-day baseline. Alerts only fire when the ratio crosses a meaningful threshold — usually 3×+, with premium and ask-side filters layered on top.