longbridge-flows

longbridge-flows

Single-symbol ownership and money-flow lens: who's buying/selling at the institutional, fund, insider, broker, and short-seller layers.

Response language: match the user's input language — Simplified Chinese / Traditional Chinese / English.

When to use

• "13F 谁持仓最多", "Berkshire 13F", "巴菲特最新持仓", "active fund AUM ranking" → investors
• "哪些基金持有 NVDA", "AAPL 被多少 ETF 持有" → fund-holder
• "TSLA 高管最近买入", "AAPL Form 4", "内部人减持" → insider-trades (US only)
• "AMD 空头数据", "TSLA 做空比例", "days to cover" → short-positions (US only)
• "700.HK 中央结算", "腾讯经纪商持仓", "broker holding 700" → broker-holding (HK only)
• "X 资金面全景" → call multiple subcommands by market (US: fund-holder + insider-trades + short-positions; HK: fund-holder + broker-holding).

For intraday large/medium/small-order capital flow → longbridge-capital-flow. For institutional shareholders by % held → longbridge-corporate (shareholder).

Subcommands

Run longbridge <subcommand> --help if unsure of current flags. The CLI's built-in help is the canonical source.

| Capability | Returns | Markets | |---|---|---| | Fund-manager AUM rankings (no symbol) | Live active fund-manager rankings by AUM. | global | | 13F holdings for a manager (by CIK) | Latest 13F holdings snapshot; run --help for count/filter flags. | US (SEC EDGAR) | | 13F quarter-over-quarter changes | Position changes (NEW / ADDED / REDUCED / EXITED). | US | | Funds and ETFs holding a symbol | Fund name, ticker, currency, weight, report date; run --help for count flags. | global | | SEC Form 4 insider trades | BUY / SELL / GRANT / DISP / TAX / EXERCISE / GIFT; run --help for count flags. | US only | | Short interest history | Short interest, short ratio, days to cover; run --help for range flags. | US only | | Broker holdings over a period | Top buy / sell brokers; run --help for period options. | HK only | | Broker holdings detail | Full broker-holding detail list. | HK only | | Daily holding history for a broker | Single broker's daily history; run --help for broker-filter flags. | HK only |

Single symbol per call (except investors rankings).

Workflow

1. Resolve to <CODE>.<MARKET>. Reject US-only subcommands for non-US, HK-only for non-HK — explain politely.
2. Pick subcommands by prompt cue. Don't run all of them by default.
3. Call concurrently when the question is "全景资金面" style.
4. Summarise direction (net buying / net selling), top names, freshness (report date).
5. Cite Longbridge Securities (and SEC EDGAR for insider-trades / investors).

CLI

# Discover available subcommands and their flags first
longbridge --help
longbridge <subcommand> --help   # run for each subcommand before use

longbridge <investors-subcommand> --format json                   # AUM rankings (no CIK)
longbridge <investors-subcommand> 1067983 --format json           # Berkshire 13F
longbridge <investors-changes-subcommand> 1067983 --format json   # QoQ changes
longbridge <fund-holder-subcommand> AAPL.US --format json
longbridge <insider-trades-subcommand> TSLA.US --format json      # US only
longbridge <short-positions-subcommand> AAPL.US --format json     # US only
longbridge <broker-holding-subcommand> 700.HK --format json       # HK only
longbridge <broker-holding-detail-subcommand> 700.HK --format json
longbridge <broker-holding-daily-subcommand> 700.HK --format json

Output

Render in the user's language. Suggested layouts:

13F (investors) — when no CIK: AUM-ranked manager table. With CIK: top-N positions (ticker / value / shares / weight / change vs last filing). For changes: NEW / ADDED / REDUCED / EXITED grouped lists.

fund-holder — table sorted by weight: fund name / ticker / currency / weight % / report date. Highlight high-weight funds (> 1%).

insider-trades — chronological list (most recent first): date / insider / role / type (BUY/SELL/GRANT/...) / shares / price / value. Net buy vs sell summary at top.

short-positions — time-series table: date / short interest / short ratio / days-to-cover. Note trend (rising / falling).

broker-holding — for the --period view: top buy brokers and top sell brokers side by side. For detail: full list. For daily: a single broker's history.

When a result is empty, state so. Do not invent.

Error handling

| Situation | Reply | |---|---| | Shell command not found: longbridge | Fall back to MCP if configured; otherwise tell the user to install longbridge-terminal. | | Non-US symbol passed to insider-trades / short-positions | Reply "This subcommand only supports US-listed equities." | | Non-HK symbol passed to broker-holding | Reply "Broker holding is HK-only." | | Empty result | State explicitly. Do not invent. | | Other stderr | Relay verbatim — never silently retry. |

MCP fallback

When the CLI binary is missing, fall back via the equivalent MCP tool. Tool names typically mirror CLI subcommand names (snake_case).

When the CLI is unavailable, fall back to the MCP server. Discover available tools from the MCP server's tool list at runtime — do not rely on hardcoded tool names.

If a name above does not resolve, fall back via the equivalent MCP tool when CLI is missing.

Related skills

| Skill | Why | |---|---| | longbridge-corporate | Major shareholder % structure (a different lens than 13F flow). | | longbridge-capital-flow | Today's intraday large/medium/small-order distribution. | | longbridge-news | Filings (8-K / 13D / 13G) often pair with flow events. | | longbridge-fundamental | Earnings + dividend backdrop for insider context. | | longbridge-quote | Live price for sizing the flow. |

File layout

longbridge-flows/
└── SKILL.md          # prompt-only, no scripts/