Institutional-grade options analytics
Lavender computes option Greeks the way the contracts actually behave — American exercise, discrete dividends, real borrow, calibrated forward prices. Institutional-grade analytics, without the institutional overhead.
check every number reproduces from first principles to within 0.1% on European options
Why it matters
Most platforms compute Greeks with Black-Scholes and a continuous dividend yield. Those are exact for European options and an approximation for the American ones you trade — close enough in quiet markets, and least reliable exactly where risk concentrates: around dividends, early exercise, hard-to-borrow names, and in fast, gapping markets.
Lavender computes every Greek independently, exposes the assumptions behind it, and lets you reproduce the result yourself. That is the whole proposition.
One engine, three ways in
Whatever you use, you are working from the same engine — so research, production and the risk screen cannot disagree with each other.
For traders
A desktop workstation: whole-book risk grouped and totaled, a 441-cell scenario matrix where every cell is a true reprice, and a volatility surface you can spin. Opens on a sample book, so you can judge it before connecting anything.
7-day free trial · then $390 / seat / month
Windows 10 / Server 2016 or later
For developers & quants
The same Greeks over REST, from a server running on your own machine. Nine vendor-compatible endpoints — change the host and your existing code works unchanged.
7-day free trial · then $450 / instance / month
Up to 3 users per instance · Windows 10+, macOS 12+, Linux (x64)
For desks and firms
The engine run on your inputs and your methodology, deployed inside your own environment. Terminal seats for your traders and Gateway instances for your systems, on one input set.
Scoped per engagement
Network-isolated deployment
The whole options picture, one workspace
A live montage, a true volatility surface, a complete Greeks picture, and a whole-book risk and scenario engine — all on your desktop, all on Lavender's own Greeks.

One grid, ten groupings, a pinned total, and live heat on every dollar-Greek — with a costed hedge and the exposure you'd be left holding.
Spot against volatility across a 441-cell grid where every cell reprices the whole book, plus Monte Carlo VaR and CVaR across correlated paths.
P&L attribution that prints its residual instead of absorbing it, and an engine that reproduces from first principles.
One analytics core behind every product
Modeled as the cash events they actually are, not as a continuous yield that quietly distorts delta near ex-dates.
Optimal exercise boundaries computed across strikes and maturities, so American contracts are priced as American contracts.
Implied borrow calibrated per expiry, enforcing put-call parity and keeping call and put Greeks consistent in hard-to-borrow names.
One-trading-day decay alongside standard theta — what the position loses by this time on the next trading day, weekends and holidays handled.
A fitted surface built from the whole chain rather than a handful of anchors, with outliers handled rather than propagated.
Implied volatility and Greeks through third order across ~6,000 underlyings — equities, ETFs and index options — computed robustly across every strike, not just at the money.
check paste our reference implementation into Python, R or Excel and compare
Already have a Greeks provider?
Where the two agree, you trade with confidence. Where they diverge — near ex-dates, deep in the money, illiquid strikes — you have learned something worth investigating.
For systematic traders and quant researchers, an independent second source isn't an added cost. It's a risk management tool.

See the engine run — free
Run eight commands in Lavender Discord — /greeks, /skew, /term, /surf, /grid, /rates, /volcomp and /bscomp — on any listed ticker, and get an instant chart back, privately. 100 commands a day, no payment method, nothing to install.
Where to start
Payment method required · no charge if you cancel before it ends. Month-to-month after that — cancel any time from your own portal, without asking us.
Independently computed option Greeks for traders, developers and researchers. One engine behind Terminal, Gateway and Discord.
© 2026 Lavender Trading Solutions LLC · 30 N. Gould Street, Ste. 64595, Sheridan, WY 82801
Lavender Terminal is an analytics tool and does not provide investment advice.