Lianxin Digital Quantitative Systems · Private Delivery

Turn your research workflow into
a system that actually runs.

We build custom systems for trading and research teams: start with our own market data or swap in your own feeds, run factors and backtests on your definitions, and deliver intraday monitoring with on-premise deployment together. The platform covers A-shares, Hong Kong, US equities, domestic futures, international futures and crypto — one rule set per market, never blended.

Private deployment · data never leaves your network
300+REST APIs
77Built-in factors
9Monitoring rule types
28Analysis pages
SuperAlpha · 持仓提醒
比亚迪 跌破止损位 310.00现价 308.90 · 浮亏 −4.8%
BASE

SuperAlpha is a foundation, not a destination

The platform already runs the full chain — data, factors, backtesting, decision — so customisation never starts from zero. Data begins on our own market feeds and can be swapped for yours; whether definitions change, how pages are laid out, how workflows run — we implement it for your scenario, or we deliver just one segment of it. Either way it lands, and someone maintains it afterwards.

Data Ingestion & Governance

Our own multi-market data works out of the box, and so does yours. Custom HTTP sources with configurable auth headers and 7 dataset types (daily bars / adjustment factors / realtime / minute / level-5 order book / full tick / fundamentals), switchable across sources, materialised to local files with adjustment and completeness validation.

  • Own market data
  • Custom HTTP source
  • Source switching
  • Adjustment checks
  • Local storage

Factors & Validation

77 built-in factors ready to use, plus a formula engine for your own. Every factor comes with IC, IR and stratified NAV curves — not a one-word claim of being "effective". The wider workbench also covers correlation heatmaps, out-of-sample mining and composite factor construction.

  • 77 built-in factors
  • DSL formula engine
  • IC / IR
  • Stratified NAV
  • Correlation heatmap

Strategies & Backtests

Strategies are expressed as conditions and signals; backtests are priced with realistic costs: limit-up/limit-down fills blocked, commission and stamp duty, slippage, entry and exit conventions — all tunable, with parameter optimisation, Walk-Forward and robustness assessment to fight overfitting. The robustness grade is derived from real backtest metrics, never assigned by hand.

  • Matrix backtest
  • Optimiser
  • Walk-Forward
  • Robustness assessment
  • Cost model

Intraday Monitoring & Alerts

9 rule families cover strategy signals, price, limit-order queues, sectors, unusual moves, volume surges and date reminders; triggers push to Feishu, WeCom, custom webhooks or email, with cooldowns and severity tiers.

  • 9 rule families
  • Cooldown
  • Tiered alerts
  • 4 channels

Page & Workflow Customisation

Pages and workflows are developed and delivered by us for your scenario — layout, metric definitions, menu order and permission granularity all follow how your team actually works. You never have to touch the code yourself; accepted versions go straight into the system. Branding — logo, primary and secondary colours — can be switched to your own.

  • Custom page development
  • Workflow rework
  • Permission tiers
  • White-label branding

Deployment & Delivery

The whole system installs on the server you specify, with data and configuration never leaving your network; multiple accounts or teams sharing one deployment stay isolated; delivery includes deployment scripts and documentation, with upgrades on a release cadence. It can also be packaged as a desktop client for standalone use.

  • Self-hosted
  • Multi-tenant isolation
  • Desktop client
  • Version upgrades
INTERFACE

One screen, not ten pages

The interface is driven by trading session: overnight and picks before the open, realtime and unusual moves intraday, review after the close. Numbers right-aligned and monospaced, red for up and green for down, so you read the number before you look for where it is.

Market Dashboard/dashboard
成交额
6,284 亿
上涨率
61.3%
涨停 / 炸板
68 / 19
情绪评分
64 偏暖
涨跌分布 · 5,568 只 中位 +0.62%
Session bar, indices, key metrics, advance/decline distribution and sector heat, with draggable and savable widget positions.
Single-name Analysis/stock-analysis
257268278压力 286.17枢轴 259.37ATR 249.30
Daily candles overlaid with key levels (resistance, pivot, support, ATR stop), with the AI analysis history on the right.
AI Daily Picks/daily-picks
短线 3–10 日 · 第 1 名 86.4
中际旭创 证伪通过
完备
一致
领先
第 2 名 79.1
东方财富 有风险提示
完备
一致
领先
Short-term signals scored on completeness, consistency and lead, with falsification status and points of disagreement.
同一套系统里的其它页面
Paper Trading/paper

Multi-account management, limit orders that queue rather than expire at the limit, full position / trade / NAV records, and batch account creation for side-by-side comparison.

Branding/branding

Logo, primary and secondary colours written through to the backend, so the whole interface changes — white-label delivery without touching code.

MARKETS

Six markets, each running its own rules

Every market has a different trading regime: price limits, board lots, settlement, trading hours, taxes and costs. We isolate data and rules per market with one profile each, rather than reskinning a single logic set — so "US stocks have no price limits" and "futures need mark-to-market and margin" never get treated as the same thing. A-shares, Hong Kong, US equities, domestic futures, international futures and crypto are all connected — the first five follow equity and futures regimes, crypto trades 7×24, each computed on its own terms.

CN

A-Shares

CNY · Stocks / Indices / ETFs
Built-in

5,500+ instruments across the full market, with the Main Board, ChiNext / STAR Market and BSE handled separately for price limits and trading rules. A-shares is our deepest market — limit-up ladders, the leaderboard, sentiment cycles and other A-share-only concepts each have their own pages.

  • Main Board ±10%, ChiNext / STAR 20%; one-way boards flagged distinctly
  • 100 shares per lot, 0.1% stamp duty on sells, CNY 5 minimum commission
  • Consecutive limit-ups, order-queue depth, Dragon-Tiger list, northbound flows
HK

Hong Kong

HKD · Stocks / Indices / ETFs
Built-in

A separate build from A-shares: trading hours, board lots, no price limits and T+0 all differ. Hong Kong-specific data lives in dedicated pages in the system, not as a handful of extra metrics.

  • No price limits; board lot size varies per stock, read from its own reference table
  • 0.1% stamp duty both ways, HKD 50 minimum commission
  • Southbound flows, short-selling ratio, bull/bear certificates and warrants, AH premium
US

US Equities

USD · Stocks / Indices / ETFs
Connected

Runs on Eastern Time: 390 minutes of continuous trading with no midday break, with daylight saving converted through the trading calendar. US-only timing signals, dividends and splits, and corporate actions each have their own pages.

  • No price limits, 1 share per lot, no stamp duty
  • Hours expressed in ET, converted to Beijing time (DST: 21:30–04:00 next day)
  • No uniform minimum commission — priced per broker agreement
FU

Domestic Futures

CNY · Commodity + Financial Futures
Connected

Futures are not "another kind of stock": the underlying is a contract (variety plus expiry month), marked to the daily settlement price, with margin and leverage. Futures-only term structure, basis, open interest and inventory each have their own pages.

  • Day session plus night session (crossing midnight, tiered by variety)
  • Price limits set per variety, fees charged per lot
  • Contracts stored independently, supporting rolls and term structure; open interest is the core metric
GF

International Futures

USD · CME / COMEX / CBOT / NYMEX
Connected

A separate regime from domestic futures, so it is a separate market: currency, contract suffix, sessions and calendar all differ.

  • Globex runs close to 24 hours, with sessions split across midnight
  • USD-denominated in its own namespace, so codes never collide with domestic futures
  • Trading calendar follows US federal holidays, not Chinese ones
CR

Crypto

7×24 · No trading calendar
Connected

Continuous 7×24 trading with no trading calendar, matched and settled per exchange rules — a different regime from both stocks and futures, so it is handled on its own.

  • No price limits, no market close, 7×24 streaming quotes and minute bars
  • Does not borrow the equity trading calendar — backtests and statistics run on a continuous timeline
  • Factor, backtest and monitoring chain already connected
DEDICATED PAGES

Every market has its own dedicated pages — not a reskin

A market's special data only counts if it is implemented against that market's own rules. Below are the dedicated pages for each of the six markets. The counts differ, but every page answers a question unique to that market.

CN

A-Shares

11 个专属页面

Limit-Up Ladder

Limit-up counts stacked by board level, marking first board, second board and promotion rate

Sealed Orders

Sealed volume and amount, with broken boards and re-seal warnings handled apart

Dragon-Tiger List

Daily top-trader board and institutional seat activity

Market Review

Leaderboard, call-auction baseline and an AI daily review — archivable and pushable

Sentiment Cycle

Cycle position judged from sentiment metrics, counting sectors held and above historical average

Unusual Moves

Add the names you want to keep watching; hits route straight to the monitoring centre

Sector & Concept

Industry and concept analysis on both axes, with member counts and a rotation matrix

Indices

Indices run on their own data pipeline and never mix into stock strategy calculations

Position Batches

Scale in over batches with position reminders

Financials

Financials loaded at announcement timestamp, with archivable reports

Signal Replay

Describe an idea, generate the condition set, then replay it on local minute bars

HK

Hong Kong

8 个专属页面

Southbound Flows

Estimated net buying and holding distribution, with the estimation basis and known noise labelled on screen

Short Selling

Short-sale turnover as a share of total turnover, from HKEX per-stock official disclosure

CBBC

Call level, distance to call, street percentage and premium

Warrants

Call and put, in and out of the money, effective gearing and premium

ETP

Dual counter, primary counter and management fee with direct-deduction basis

REIT

Mandatory distribution, yield and scale — sensitive to interest rates

CCASS Holdings

Broker and custodian seat-level holdings, the only institutional-level position view in Hong Kong

AH Premium

AH premium, per-lot amount and a valuation cross-section ranking

US

US Equities

4 个专属页面

Volatility Index Family

CBOE VIX / VIX9D / VVIX / SKEW, separating near-term from far-term fear

Dividends & Splits

Full calendar of cash dividends and splits, TTM yield basis, pure price return against total return

ETF & Stock Universe

The official Nasdaq directory separating ETFs from stocks precisely — the precondition for a screening universe

Sector Fundamentals

SEC EDGAR SIC classification with XBRL financials on a TTM basis

FU

Domestic Futures

5 个专属页面

Term Structure

Price curves across expiries of the same underlying, with contango/backwardation and annualised roll yield

Basis

Basis = spot − futures, a second price for the same thing that only futures have

Open Interest

The only futures metric showing capital actually present; the main contract is identified by open interest

Inventory

Warehouse receipts and inventory percentile — with roll-related breaks excluded so a fake "all-time low" never shows

Contract Specs

Multiplier, margin rate, minimum tick and price limit — what one lot costs and how much it levers

GF

International Futures

6 个专属页面

Futures Dashboard

Contract rankings across all sectors, priced in USD and cents

Term Structure

Price curves across expiries of the same underlying, contango and backwardation, and annualised roll yield

Open Interest

The only futures metric showing capital actually present — continuous main contract plus per-contract rankings

COT Report

CFTC regulatory disclosure — the truth about commodity and rate positioning

Cross-Market

Side-by-side detail for the same underlying priced in two venues

Data Profile

Per-contract coverage and data gaps, stating plainly when the source has nothing

CR

Crypto

3 个专属页面

Continuous Quotes

7×24 minute bars and tick data organised on a continuous timeline with no daily reset

Contract & Trading Rules

Exchange conventions for matching, settlement cycle and minimum tick

Factor / Backtest / Monitoring

The same factor library and backtest engine, with rules adapted to the continuous timeline

37 dedicated pages across the six markets — each implemented against its own market rules, not the same logic with different parameters.
FACTORS

The factor workbench: write, test, falsify — one pipeline end to end

A factor has to be writable, computable, testable, combinable and minable before it deserves a place in a strategy. Only factors that survive the whole pipeline are worth keeping.

Formula Editor

Write factors in a DSL, with dependencies expanded recursively and syntax and field availability validated live. Once written it trial-runs over the most recent 40 sessions on the panel, showing at a glance whether the direction is unknown, high-is-bullish or low-is-bullish.

Factor Testing

Set the window, rebalance frequency (daily / weekly / monthly), grouping and cost parameters, then get layered equity curves, IC and IR. Filter results carry a verdict column — not just an equity chart.

Correlation Analysis

Every pair of factors is correlated and rendered as a heatmap. Highly correlated factors side by side look like more signal but actually express the same thing repeatedly — see the overlap first, then decide whether to combine.

Auto Mining

Not sure what to test? Start from a preset and batch-test a selected set of factors in one click. The system can also mine candidate factors automatically, validate them out-of-sample with nested folds, and search factor combinations with beam search.

Composite Factors

Combine several factors into a new one by weight, with the weighting scheme chosen explicitly. Once combined it is an ordinary factor — backtestable and tradable like any other.

Factor Library

Base, virtual, composite and custom factors are managed together, annotated with warm-up period, applicable asset scope and stability. Any factor can be turned into a strategy or sent for testing in one click.

每个因子都能跑出来的结果
Layered equity curvesIC / IRCorrelation heatmapOut-of-sample mining curvesRegime comparisonRobustness grade
AI

AI does not make your decisions. It looks for reasons to reject.

AI in this system has an explicit boundary: it explains the quantitative results clearly and falsifies the candidates. It does not pick stocks and it does not promise returns — every number comes from local computation, and the model only organises the language.

We do not sell "let AI pick a few stocks for you" — that is not reproducible, not falsifiable, and every outcome can be explained after the fact, which means it carries no information. So in our system AI does exactly two things: explain the quantitative results clearly, and try to falsify the candidates. Selection and scoring are done by a deterministic scorer that is reproducible and auditable; AI takes the local data and looks for reasons to reject.

AI Strategy Generation & Iteration

Reads the strategy development spec, has the model write framework-compliant strategy code, then backtests it for a baseline, diagnoses the problem and revises — a bounded "generate → backtest → diagnose → revise" loop, capped at 4 rounds by default. The discipline is hard-coded: backtest before changing anything, one primary fix per round, and every change must be justified by backtest metrics rather than imagination. The backtest is read-only, and the result never goes live on its own — a human signs off.

  • Generate → backtest → diagnose → revise
  • Bounded rounds
  • Read-only backtest
  • Human sign-off

Candidate Falsification Layer

The scorer only compares cross-sectional strength, so it is structurally blind to absolute risk — a name can be the most resilient in the universe while sitting on its limit-down. The falsification layer closes that gap: every candidate is treated as a hypothesis awaiting test, checked objectively against local data, and anything that trips a hard veto is removed outright while softer findings stay in the pool with the risk flagged.

  • 7 objective checks
  • Hard veto / soft flag
  • All computable locally

AI Assistant & Tool Calling

The assistant can call system tools directly — list factors, list strategies, query data capabilities, run a backtest — retrieving the catalogue on demand instead of stuffing the entire factor library into the context window. The backtest tool returns only summary metrics (total return, annualised, max drawdown, Sharpe, win rate, trade count), never the equity curve or per-trade log.

  • 4 system tools
  • Streaming output
  • On-demand retrieval

AI Analysis Reports

Single-name analysis produces reports across four dimensions — technical, market context, financials and news — all sharing one focus instruction. Financial interpretation and end-of-day market commentary are model-written too, but every number they cite comes from local computation: the model organises the language, it does not invent the figures.

  • Four-dimension analysis
  • Market commentary
  • Numbers from local compute

Candidate Falsification Layer

硬否决触发即移出候选池
  • SuspendedZero volume on the latest session — you cannot buy or sell it
  • Insufficient liquidityRecent average daily turnover below the floor — impact cost eats the return
  • Limit-down riskAt limit-down or falling consecutively — likely still under pressure next session
软扣分留在池中但标出风险
  • OverboughtRSI14 > 80 or price above the upper Bollinger band
  • Sentiment exhaustedVolume ratio > 3 with a session gain above 9%
  • OverextendedClose more than 25% above MA20 — chasing risk
  • Contradicting trendMA5 < MA20 < MA60 with negative 60-day momentum

The model can live entirely inside your own environment

The AI layer speaks any OpenAI-compatible service — point it at a cloud API, at your own inference server, or straight at a local Codex CLI. Keys live in the system key store, never in source code, and never leave your network.

  • OpenAI-compatible — swap providers without code changes
  • Local Codex CLI — fully offline operation
  • Keys held in the system key store, not in config files
  • All analysis data stays local, nothing is sent out
MOBILE

Away from your desk, watch the market and decide from your phone

The desktop handles research; mobile does three things: watch, receive alerts, and make the call on a single name. Strategy building and factor formulas need a large screen, so we do not force them onto a small one. Mobile can be part of a custom delivery, or built on its own first.

  • Session-driven home. Pre-open, call auction, intraday, lunch break, close — the home screen changes with the session.
  • Alerts land on the instrument. Stops, unusual moves, rule hits — tap through to that exact name and adjust the alert straight away.
  • Picks come with ranges. Entry zone, stop level, target, risk-reward ratio — all visible on one screen.
10:42▮▮▮
行情 A股
连续竞价 · 上午48 分
9:1511:3015:00
上证
3,412.5
+0.84%
深证
10,876
+1.12%
创业板
2,214.0
-0.31%
半导体+3.82%
算力+3.10%
中芯国际+20.0%
北方华创+10.0%
08:56▮▮▮
机会 10-29 收盘
AI 推荐策略选股异动
短线中线长线
中际旭创 证伪通过86.4
完备
一致
领先
买入163–167
止损156.8
目标182/194
盈亏比2.1
东方财富79.1
风险:板块拥挤
14:07▮▮▮
提醒 2 条未读
比亚迪 跌破止损位
现价 308.90 · 浮亏 −4.8%14:06
寒武纪 5 分钟拉升 +4.2%
量比 3.6 · 半导体13:41
规则命中 4 只
放量突破 20 日高点10:15
回测任务完成
年化 21.4% · 夏普 1.4209:02
Self-hosted Deployment

The whole system installs on your own server — market data, factors and strategies never leave your network.

Account & Permission Isolation

When multiple clients or teams share one deployment, data directories and configuration stay separate and mutually invisible.

Traceable Definitions

Estimates, incomplete data and untradeable signals are clearly labelled in the interface. We never fake precision.

Replaceable Data Sources

Ships with our own multi-market data and swaps to yours — custom HTTP sources and source switching, with failover if one feed drops.

DELIVERY

One foundation, three delivery forms

Private deployment, desktop client, mobile — pick the form that fits your situation. The underlying definitions stay identical across all three.

Private Deployment

The whole system runs on a server you specify; data and configuration never leave your network. When several clients or teams share one deployment, data directories and configuration stay separate and mutually invisible.

  • Self-hosted, data stays in-network
  • Multi-tenant data isolation
  • Accounts and menus configured as needed
  • Deployment scripts and docs delivered

The most common form, chosen by most teams.

Desktop Client

Packaged as a Windows installer — double-click and it runs: a backend service bound to localhost only, with the frontend in its own window. No server to configure, and the full feature set on your own machine.

  • Windows installer, double-click to run
  • Backend service listens on 127.0.0.1 only
  • Single-instance lock — reopening focuses the existing window
  • Data stored in the local user directory

Suits small teams, single-machine research, and anyone who does not want to run infrastructure.

Mobile

Mobile is built around your situation and can be part of a full delivery or come first on its own. It is not a shrunken desktop build — watching quotes, receiving alerts and making the call are what genuinely belong on a phone.

  • Session-driven home screen
  • Push straight to the security
  • Recommendations with entry/exit zones and risk-reward
  • Delivered as a full package or standalone

Currently in development — please treat the actual shipped feature set as the source of truth.

ENGAGEMENT

Engage per project, deliver what you need

This system is delivered as custom work: we review your requirements and data conditions first, then agree scope, timeline and price. Below are the three common shapes — they can be combined.

Project Customisation

You have a research process and want it systematised
Scoped per project
  • Requirement review and solution design
  • Adapt the platform, or build the modules you are missing
  • Data source integration and joint debugging
  • Deployment and documentation after acceptance
Talk requirements

Private Deployment & Operations

Data must stay inside your network
Delivery + annual operations
  • Deployed to the server you specify
  • Accounts, permissions and menus configured to your needs
  • Data pipelines and scheduled jobs productionised
  • Version upgrades and incident response
Discuss deployment

One Segment Only

Just data ingestion / just backtesting / just mobile
Priced per module
  • Split by module — no need to buy the whole suite
  • Interfaces and data formats aligned to your existing stack
  • Runs standalone, and can be integrated back later
Tell us which segment

Price and timeline depend on scope, data licensing and whether we need to integrate with your existing systems — so we do not publish a single price. We start with a requirement review, then put a written proposal and scope list in front of you before discussing price and schedule.

PROCESS

Delivery process

01Requirement Review

We look at your data conditions, current process and the problems that must be solved.

02Solution & Prototype

A written scope list, milestones and quote; key screens delivered first as clickable prototypes.

03Data Integration

Connect a data source — ours or yours — and get adjustment, backfill and completeness validation working.

04Joint Acceptance

We walk the acceptance checklist item by item and keep fixing what is blocked. Nothing gets waved through.

05Delivery & Operations

Deployment docs, operating manual and upgrade path, plus support for as long as we agree.

Straight answers on data and conclusions

Not investment advice.SuperAlpha is a research and backtesting tool. All scores, recommendations and ranges are model computations based on historical data and are not promises about the future.

Data sources and definitions.Market, fundamental and flow data comes from our own data services, licensed providers or public sources; our own market data is delivered with the system and is not resold or redistributed separately. Estimated metrics (such as net southbound buying) are labelled "estimated" in the interface, and missing data is shown as empty rather than zero.

A backtest is not live trading.Backtest results are simulated using a cost model and the trading rules in force at the time. They do not account for liquidity shocks or failed fills in extreme markets, so they diverge from live results.

Custom delivery and ownership.Code ownership, data ownership, redistribution scope and operational responsibility for each project are written down in the contract; deployment is private by default and data directories are never shared between clients. System pages and business workflows are developed and delivered by us, and extensions follow the same requirement-review process.

Read the full disclaimer
ABOUT

About Lianxin Digital

Lianxin Digital builds tools for quantitative research. The "chain" in our name is the data chain — we link quotes, factors, backtests and decisions into one traceable thread; the "xin" means accumulation, because research has no shortcuts.

We do one thing: turn the research workflow of trading and research teams into a system that runs and stays maintainable — data ingestion, factors and backtesting, intraday monitoring, on-premise deployment. We make no promises about returns; we lay out the definition behind every step and leave the judgement to you.

Founded2025
BusinessQuantitative system development
ClientsTrading teams · Research teams · Institutions
DeliveryPrivate · Self-hosted

Tell us what you need

Leave a way to reach you and what you are after. We start with a requirement review and give you a written proposal and scope list before discussing price and schedule.

We use it only to contact you, and for nothing else.