The operating system for your fund
Nyx connects your exchanges, brokers, wallets — or book any asset manually — runs a real double-entry ledger alongside your fund admin, strikes NAV, accrues fees, watches risk, and writes the LP report — automatically, every month, from your real positions.
From $2,500/month · Everything included · Book a call
Manual P&L tracking at scale is duct tape over a gas leak. One formula error, one missing row, one stale price feed — your AUM is fiction.
Monthly reports take hours you don't have and money you shouldn't spend. Then the emails start. Then the Zooms. Then the redemptions.
A 20% drawdown doesn't wait for you to open your laptop. By the time you notice, the LP relationship is already damaged.
| A | B | C | D |
| Asset | Qty | Price | Value |
| AAPL | 140 | $228.50 | $31,990 |
| BTC | 4.2 | $96,420 | $404,964 |
| TLT | ??? | $92.18 | #REF! |
| TOTAL NAV | #REF! | ||
DATA
Connect exchanges, wallets, and brokers once — Nyx keeps them in sync every 15 minutes for the life of the fund. Every asset class sits in the same portfolio, priced honestly by the method that fits it, with airdrop-spoofed tokens automatically excluded from NAV instead of quietly inflating it.
ACCOUNTING
Nyx runs a genuine double-entry ledger alongside your fund administrator — append-only, balanced, and deterministic. Every NAV strike is reproducible byte-for-byte. Every fee, every subscription, every redemption posts as a real journal entry, not a spreadsheet formula.
INVESTORS
One click turns real positions into a finished LP report — net-of-fee returns, statement of changes in NAV, full disclosures — in under a minute. Investors get their own portal and can ask your bots questions directly, with dollar figures shared only when you say so.
RISK
Gross, net, long, short — sliced by asset class, chain, venue, and source — updated live. Daily P&L attribution shows exactly what moved the number. Stress Lab runs scenarios and dollar-value-at-risk against your real book before you need the answer, not after.
AI
Nyx Analyst reads your general ledger and answers with citations back to the actual journal entries — not a guess dressed up as confidence. It proposes actions for you to approve and never executes on its own, remembers your fund's context across conversations, and rides along as a copilot on every page of the app. Autonomous missions run it on a schedule — morning briefs, risk sweeps, strategy critiques — reporting back without you asking.
STRATEGY LAB
Build a strategy visually or drop into a code node and write the logic yourself — same deterministic engine either way, so identical inputs always produce the identical result. Backtest long and short at up to 3× leverage with real margin interest, funding costs, and a modeled liquidation path, then walk it forward across rolling out-of-sample folds before you trust it. Every run is simulation, strictly segregated from your real book — nothing here touches NAV, positions, or your LPs unless you approve a memo.
COMPLIANCE
Every action that touches money is logged, and on multi-manager funds, every material action needs a second set of eyes before it posts. Tax lots track themselves. Form PF readiness and K-1 data packages are one export away instead of a spreadsheet reconstruction project each quarter.
The alternative
A typical emerging fund's back office runs a finance hire (~$120K), a fund administrator (~$100K, often with a $25K–$60K annual minimum regardless of AUM), and a compliance advisor (~$80K). That's over $300,000 a year before a single LP report goes out — and none of it includes risk monitoring or an approvals workflow.
Nyx gives a solo GP or a two-person team the ledger, the risk desk, the reporting, and the compliance trail of a fund three times their size — from $2,500 a month, banded by fund size. That's under $30,000 a year at the entry band, roughly a tenth of the back office it replaces, with nothing to hire, train, or manage.
Pricing
Everything above, for every fund you run — nothing itemised, nothing gated. Price rises only when your fund grows, never mid-term, never a usage surcharge.
AUM confidential or misleading? Bands fall back to investor count — under 15, 15–50, above 50.
NYX · FIELD NOTES
Notes from building Nyx — what keeps LPs calm, what surfaces risk early, and what's a waste of your time. A short email every few days, written by the founder.
FAQ
Nyx Fund is the operating system for emerging fund managers — crypto and multi-asset. It connects to your exchanges, wallets, and brokers, runs a real double-entry shadow ledger alongside your fund administrator, strikes deterministic NAV, accrues fees, monitors risk, and generates LP reports automatically — replacing a back office that would otherwise cost over $300,000 a year, starting at $2,500 a month, banded by fund AUM.
Nyx Fund is built for solo and small-team fund managers running roughly $1M to $50M in AUM — crypto-native funds and multi-asset managers with a crypto sleeve — who need institutional-grade accounting, reporting, and risk monitoring without hiring a finance team, fund administrator, or compliance staff.
Nyx Fund is banded by fund AUM — $2,500/month under $25M, $4,000/month from $25M to $100M, and negotiated (from $6,000/month) above $100M — plus a $3,500 one-time implementation fee, with a 10% discount for annual prepayment the only discount offered. Billed by invoice, net 30, via bank transfer — no card checkout and no self-serve signup. No per-seat fees and every feature is included at every band — the ledger, risk desk, reports, and compliance tools are not separate add-ons. Your price never changes mid-term; re-banding happens only at the 12-month renewal, using your fund's own reported AUM. A traditional back office (a finance hire, a fund administrator with a $25K–$60K annual minimum, and a compliance advisor) runs over $300,000 a year for a comparable fund.
No. Nyx Fund runs a genuine double-entry ledger — append-only, balanced, audit-traceable — that reconciles against your exchange and wallet data in real time. It is a shadow book that sits alongside your official administrator, not a replacement for one. The value is that you (and your LPs) get an institutional-grade, always-current NAV and audit trail between the administrator's periodic statements, and a second set of numbers to catch discrepancies early.
Nyx Fund is read-only and never places trades or moves funds. You connect read-only exchange API keys and public wallet addresses; keys are encrypted with AES-256-GCM, accounts support TOTP two-factor authentication with backup codes, and Nyx never requests withdrawal or trading permission. Your capital stays entirely under your control.
Nyx Fund prices 12 asset classes inside one shadow ledger. Digital assets (crypto and stablecoins) are live-priced across 95 exchanges and 21 blockchains. Equities, ETFs, and funds price end-of-day via a market-data feed. FX, commodities, and futures price against a registered symbol. Bonds, options, private holdings, and real assets price from a manager-entered fair-value mark, timestamped with provenance and approved through maker-checker before it can move NAV. Every class books into the same double-entry ledger and the same NAV strike, alongside stock brokers — Alpaca, Tradier, Interactive Brokers, and SnapTrade (which reaches Robinhood, Schwab, Fidelity, and more).
Yes. Every fund gets a read-only LP portal where each investor sees their own capital account, isolated at the database level so one LP can never see another's numbers. Investors join by invite-only magic link — no password to manage — and can optionally ask questions through bots on Telegram, Slack, or Discord, with dollar figures shared only when you enable full disclosure for that channel.
Nothing from a paper or simulated account ever touches your real NAV. If you connect a TradingView or Alpaca paper-trading feed, Nyx keeps it in a completely separate, clearly labeled statement — it cannot post to your real positions, AUM, LP reports, alerts, or ledger under any circumstance.
Yes. Nyx Fund's Strategy Lab lets you build a trading strategy with a visual node-graph builder or a sandboxed JavaScript code node, then run it through a deterministic backtest engine — the same strategy and the same data always produce the identical result. You can test long and short positions with up to 3× leverage and realistic costs (margin interest, funding, a modeled liquidation path), validate with walk-forward out-of-sample folds, and run portfolio backtests across multiple strategies as one book. An AI improve loop — strategy_improve missions — has the Analyst critique a strategy against a benchmark library and propose revisions you approve. Backtests are simulation, strictly segregated from your fund: they never touch real NAV, positions, or LP reports, and Strategy Lab — like the rest of Nyx Fund — remains read-only and never places a trade.
Yes. Nyx Fund exports a Form PF data-readiness package (a structured summary plus monthly series covering the categories the form requires), tracks tax lots under your elected cost-basis method (average, FIFO, or HIFO), and generates tax-gains and tax-capital CSVs alongside a K-1 data package. These are data-handoff exports for your preparer, not a filing service.
Nyx Fund does not offer a free trial. Instead, it offers a paid parallel-run pilot — Nyx runs alongside your existing fund administrator for three month-end closes, and you get a full refund if it doesn't reconcile. The pilot runs for three consecutive month-end closes at your band's normal monthly rate, and the $3,500 implementation fee is deferred until you convert to the annual agreement, not waived.
Still have questions? Talk to the founders →
One login for the ledger, the risk desk, the reports, and the audit trail. From $2,500 a month, banded by fund size.
From $2,500/month · Everything included · Book a call