How Greeks Stay Current¶
Most option contracts trade infrequently. An underlying like AAPL might have 5,000+ listed contracts, but only a fraction see active quoting at any moment. Greeks computed from the last trade quickly become misleading as the underlying moves.
Lavender solves this by repricing every contract continuously — recomputing implied volatility and Greeks from the current underlying price and market conditions rather than waiting for the specific contract to trade. The full universe of ~6,000 optionable names ticks continuously during market hours.
See it for yourself¶
The claim that Lavender ticks continuously across the entire universe is testable, not theoretical. Paste any OPRA-listed ticker into your browser:
Refresh and watch the spot, IV, and Greeks update -- regardless of how thinly the contract itself is quoted. Every Lavender endpoint (native and vendor-compat) supports format=html, so the same trick works on any compat URL too.
Try it on a long-tail name where the contract itself rarely prints -- the response still updates because Lavender is repricing continuously, not waiting for the contract to trade.
Implementation details are proprietary; the behavior is verifiable.
Confidence¶
Each root carries a confidence score (0–1) indicating how well the Lavender model fits the available market data. Names with wide bid/ask spreads or thin quoting are still returned but with lower confidence, so consumers can filter or weight accordingly. The confidence value is available via the confidence field in the Lavender API.