LuxiBook prices a European option book and proves the run.

A closed-binary European option-book pricer. Black-Scholes / Black-76, five Greeks, and a SHA-256 receipt on every run. This is LuxiEdge's most complete and ready product. It is not described as production-ready.

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What it actually does

CSV book in

You supply a position book as CSV. The published example is example_book.csv.

European Black-Scholes / Black-76

Closed-form European pricing. You bring time to expiry, rate, and volatility.

Five Greeks

Five Greeks per position, written with the prices into the output report.

SHA-256 receipt

Every run can emit a receipt. Store it. Re-run the same book and check the hash.

What it does not do. No live market feed. No implied-volatility solver. No VaR. Not a fund desk, and not a live-risk engine. You bring T, r, and vol.

Who it is for

Quantitative, trading, risk, and financial-infrastructure teams that need a defined book priced the same way, with a receipt they can keep. Also useful to regulated-computing groups that want a small, inspectable binary rather than a service stack.

Downloads

Binaries and the example book live in the public LuxiDemo repository. These are the current published files.

File	Platform
luxi-book-macos-arm64	macOS Apple Silicon (CPU)
luxi-book-linux-x86_64	Linux x86_64 (CPU)
luxi-book-linux-x86_64-cuda	Linux + NVIDIA GPU (`--mode gpu`)
example_book.csv	Example position book
*.sha256 checksums	Matching checksums in the download folder

There is no macOS GPU binary. The CUDA build needs a live NVIDIA driver. Binaries are unsigned: on macOS, right-click the file and choose Open the first time.

How to try it

# Mac CPU
chmod +x luxi-book-macos-arm64
./luxi-book-macos-arm64 price --book example_book.csv --out report.csv --receipt receipt.json

# Linux CPU
./luxi-book-linux-x86_64 price --book example_book.csv --out report.csv --receipt receipt.json

# Linux CUDA
./luxi-book-linux-x86_64-cuda price --book example_book.csv --out report.csv --receipt receipt.json --mode gpu

Full download notes and checksums: demo page.

Internal five-box receipt check

Running the published example_book.csv through the published binaries on August 15, 2026 produced the same receipt on every box tested, via the black_scholes_book_kernel path. This is an internal measurement, not a third-party lab result.

Field	Value
Receipt (SHA-256)	`4a21b1e708fa5c694bf48237df5e5bd3b94599e6273d07986283c6c6b8e3c97a`
ATM_CALL price	`10.4505835721856215`
Boxes matched	Mac Mini CPU · RunPod x86 CPU · A100 · H100 · H200 (two GPU runs each)
Date	August 15, 2026

Scope. The identical receipt holds for this book, these boxes, and this kernel. It is not a claim that all GPUs always match, and not a universal cross-platform bit-exact promise.

Request a paid evaluation

Bring your own book, your comparator, and the hardware you care about. A paid, fixed-scope evaluation measures correctness, determinism, speed, energy, and receipts, then documents the head-to-head.

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