---
name: longbridge-corporate-events
description: |
  Corporate event-driven analysis via Longbridge Securities — captures and classifies events that create pricing dislocations: major-shareholder increases/decreases, equity incentives, private placements, rights issues, buybacks, M&A/restructuring, index rebalancing, and management changes. Combines filings, corporate actions, and shareholder data to produce event signals. Triggers: "公司事件", "事件驱动", "大股东增持", "大股东减持", "股权激励", "定增", "配股", "回购", "并购重组", "指数调整", "管理层变更", "公告分析", "公司事件", "事件驅動", "大股東增持", "大股東減持", "股權激勵", "定增", "配股", "回購", "並購重組", "指數調整", "corporate event", "event-driven", "share buyback", "equity incentive", "major shareholder increase", "rights issue", "M&A arbitrage", "index rebalancing", "insider buying", "corporate action analysis".
license: MIT
metadata:
  author: longbridge
  version: "1.0.0"
  risk_level: read_only
  requires_login: false
  default_install: true
  requires_mcp: false
  tier: read
---

# longbridge-corporate-events

Event-driven analysis for a single listed company: identifies, classifies, and scores corporate events that may create short- to medium-term pricing dislocations.

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

## When to use

- *"AAPL 最近有什么大事件"*, *"700.HK corporate events"* → full event scan
- *"大股东最近增持了吗"*, *"insider buying signal"* → shareholder change focus
- *"NVDA 回购进展"*, *"share buyback update"* → news + corp-action focus
- *"A 股并购重组信号"*, *"M&A catalyst"* → news + filing focus
- *"指数调整对 XX 的影响"*, *"index rebalancing effect"* → calendar + news focus

Do **not** use for financial KPIs / earnings (→ `longbridge-fundamental` / `longbridge-earnings`), real-time quotes (→ `longbridge-quote`), or deep broker-level ownership (→ `longbridge-flows`).

## Workflow

1. Resolve the user's symbol to `<CODE>.<MARKET>` (e.g. `AAPL.US`, `700.HK`, `600519.SH`).
2. Run `longbridge --help` to see available subcommands; run `longbridge <subcommand> --help` to confirm current flags for each.
3. Fetch **latest news and announcements** using the news subcommand with `--format json`.
4. Fetch **regulatory filings** using the filings subcommand with `--format json`.
5. Fetch **corporate actions** (dividends, splits, rights, buyback notices) using the corporate-actions subcommand with `--format json`.
6. Fetch **major shareholder changes** using the shareholder subcommand with `--format json`.
7. Optionally fetch **earnings / event calendar** using the finance-calendar subcommand with `--format json` to surface upcoming catalysts.
8. Classify each event into one of the standard types (see Output), assess sentiment (+/−/neutral), and estimate the expected price-impact window.
9. Output the event ledger and a summary directional signal.

## CLI

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

# Latest news and announcements
longbridge <news-subcommand> AAPL.US --format json

# Regulatory filings (SEC 8-K, HKEx announcements, CSRC disclosures)
longbridge <filing-subcommand> AAPL.US --format json

# Corporate actions (dividends, splits, rights, buybacks)
longbridge <corp-action-subcommand> AAPL.US --format json

# Major shareholder changes
longbridge <shareholder-subcommand> AAPL.US --format json

# Upcoming earnings / event calendar
longbridge <finance-calendar-subcommand> --format json
```

## Output

### Event classification table

Classify each event found into one of these types:

| Type | 简体 | 繁體 | English | Typical signal |
|---|---|---|---|---|
| `increase` | 大股东增持 | 大股東增持 | Insider / major-shareholder buy | Bullish |
| `decrease` | 大股东减持 | 大股東減持 | Insider / major-shareholder sell | Bearish |
| `buyback` | 股份回购 | 股份回購 | Share buyback | Bullish |
| `placement` | 定增 / 配股 | 定增 / 配股 | Private placement / rights issue | Dilutive / context-dependent |
| `incentive` | 股权激励 | 股權激勵 | Equity incentive plan | Moderately bullish |
| `ma` | 并购重组 | 併購重組 | M&A / restructuring | Event-specific |
| `index` | 指数调整 | 指數調整 | Index inclusion / exclusion | Inclusion bullish; exclusion bearish |
| `mgmt` | 管理层变更 | 管理層變更 | Management change | Context-dependent |
| `pledge` | 股权质押 | 股權質押 | Share pledge (high ratio) | Bearish risk flag |
| `st` | ST / 摘帽 | ST / 摘帽 | A-share ST status change | ST bearish; removal bullish |
| `other` | 其他公告 | 其他公告 | Other filing | Neutral until assessed |

### Output structure

1. **Event ledger** — chronological list: date / type / headline / sentiment (+/−/neutral) / expected impact window.
2. **Top signal** — the single most market-moving event from the list, with a one-sentence rationale.
3. **Directional bias** — net assessment (accumulation / distribution / neutral), based on the balance of bullish vs bearish events in the last 30 days.
4. **Watch window** — suggest the next 1–4 weeks if a pending event (placement lock-up expiry, buyback completion deadline, index review date) is identified.

When no significant events are found, state so explicitly — do not invent signals.

**A-share-specific notes**:
- ST / 摘帽 events have mandatory trading limits and announcement timing rules; flag these clearly.
- Northbound (沪深港通) quota changes and index-rebalancing announcements (CSI 300 / SSE 50) are high-impact for A-share mid/large caps.

**HK-specific notes**:
- General mandate issuances (general mandate for new shares) are common HK dilution signals.
- Connected-transaction / related-party announcements require regulatory approval and carry governance risk.

## Error handling

| Situation | 简体回复 | 繁體回復 | English reply |
|---|---|---|---|
| `command not found: longbridge` | 请安装 longbridge-terminal，或使用 MCP 回退 | 請安裝 longbridge-terminal，或使用 MCP 回退 | Install longbridge-terminal or use MCP fallback |
| stderr `not logged in` | 请运行 `longbridge auth login` | 請執行 `longbridge auth login` | Run `longbridge auth login` |
| No events found | 所查时段内无重大公司事件 | 所查時段內無重大公司事件 | No significant corporate events in the queried period |
| Symbol mapping fails | 请提供 `代码.市场` 格式，如 AAPL.US | 請提供 `代碼.市場` 格式，如 AAPL.US | Provide `<CODE>.<MARKET>`, e.g. AAPL.US |
| Other stderr | 原样转述，不静默重试 | 原樣轉述，不靜默重試 | Relay verbatim, no silent retry |

## MCP fallback

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.

## Related skills

| Skill | Why |
|---|---|
| `longbridge-corporate` | Corporate structure (shareholders, executives, subsidiaries) — static profile |
| `longbridge-flows` | Institutional 13F holdings, Form 4 insider trades, short interest |
| `longbridge-news` | Deeper news classification and sentiment for a single stock |
| `longbridge-fundamental` | Financial KPIs to contextualise event impact on earnings/valuation |
| `longbridge-calendar` | Forward-looking earnings, dividend, IPO, and macro event dates |

## File layout

```
longbridge-corporate-events/
└── SKILL.md          # prompt-only, no scripts/
```