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Vn30 derivatives planner

Skill xonevn-ai/xone-trading-skills/skills/vn30-derivatives-planner

Lập kế hoạch giao dịch phái sinh VN30 Futures (VN30F1M, VN30F2M, VN30F1Q, VN30F2Q). Tính roll calendar, basis vs spot, hedge sizing cho exposure cash equity, full short trade plan với IM + max loss, so sánh chi phí giữa CTCK. T+0 settlement — short tool hợp pháp duy nhất ở VN. Kích hoạt khi user hỏi "VN30 futures", "phái sinh", "short VN30", "hedge danh mục", "roll hợp đồng". Vietnam VN30 Index Futures planner — roll, hedge sizing, short trade plan, broker cost comparison. The only legal short-exposure tool on Vietnam markets.From its SKILL.md

Install
npx -y skills add xonevn-ai/xone-trading-skills --skill vn30-derivatives-planner

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SKILL.md

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VN30 Derivatives Planner — Phái sinh VN30 Futures

Tổng quan

Lập kế hoạch giao dịch VN30 Index Futures — sản phẩm phái sinh duy nhất phổ biến trên TTCK Việt Nam, và cách duy nhất hợp pháp để short (cổ phiếu cơ sở không được short).

Hỗ trợ 4 subcommands:

  • roll — Roll calendar, basis spot vs futures, suggested roll window cho contract đang nắm
  • hedge — Tính số contract short để hedge cash equity exposure (theta-neutral / beta-adjusted)
  • plan — Full short trade plan: entry, stop, R-multiple targets, IM required, max loss
  • cost — So sánh chi phí round-trip giữa các CTCK (different fee structure từ cash equities)

Khi nào dùng

  • User muốn short VN-Index khi sector regime risk-off (vn-sector-analyst regime note = negative)
  • Hedge một portfolio cash equity lớn trong giai đoạn macro risk
  • Lên kế hoạch roll hợp đồng (cuối tháng / cuối quý)
  • So sánh phí phái sinh giữa CTCK trước khi mở tài khoản phái sinh
  • Pair với vn-portfolio-manager để tính net exposure (cash long − futures short)

KHÔNG dùng cho:

  • Speculation đơn thuần không có kế hoạch (T+0 = drawdown nhanh nếu sai)
  • Hedge với contract sai (luôn dùng VN30F1M trừ khi sắp roll)
  • Trader chưa quen với phái sinh — IM 17-20% nghĩa là 5-6x leverage

Điều kiện tiên quyết

  • Python 3.9+ (chỉ standard library)
  • Tài khoản phái sinh ở CTCK (yêu cầu setup riêng — không phải mọi CTCK đều có sẵn)
  • Tham chiếu: references/vn_futures_mechanics.md, references/vn_futures_fees.md

Đặc thù VN30 Futures vs cash equities

AspectCash equityVN30 Futures
SànHOSE / HNX / UPCOMHNX (phái sinh sàn riêng)
100 CP1 contract
Multipliern/a100,000 VND × VN30 point
Tick size10/50/100 VND0.1 point = 10,000 VND
Daily price band±7% (HOSE)±7% từ giá tham chiếu hôm trước
SettlementT+2.5T+0 (cash-settled vs VN30 close)
ShortKhông cho phépCho phép
Sale tax0.1% trên giá bánKhông có
Broker fee0.03-0.15% notional1,000-3,000 VND/HĐ
IM requiredn/a (full cash)~17-20% notional
Leverage1x (cash)~5-6x
Overnight position costPhí lưu ký 0.27 VND/CP/month~3,000 VND/contract/đêm

Workflow

Subcommands

roll — Roll calendar + basis

python skills/vn30-derivatives-planner/scripts/vn30_derivatives_planner.py roll \
  --current-contract VN30F1M \
  --reference-date 2026-05-13 \
  --vn30-spot 1280.5 --futures-price 1283.0 \
  --output-dir reports/

Output: ngày roll tới (last Thursday of front month), basis (futures - spot), suggested action.

hedge — Tính số contract để hedge

# Bạn có 1B VND cash equity long, beta 1.05 vs VN30; muốn hedge 100%
python skills/vn30-derivatives-planner/scripts/vn30_derivatives_planner.py hedge \
  --cash-exposure-vnd 1000000000 \
  --portfolio-beta 1.05 \
  --vn30-spot 1280 \
  --hedge-ratio 1.0 \
  --output-dir reports/

Output: số contract cần short, IM cần thiết, notional value, basis-adjusted slippage estimate.

plan — Full short trade plan

python skills/vn30-derivatives-planner/scripts/vn30_derivatives_planner.py plan \
  --account-size 1000000000 \
  --side short \
  --entry 1283.0 --stop 1300.0 \
  --risk-pct 1.0 \
  --output-dir reports/

Output: contracts cần thiết, IM bị khóa, max loss, R-multiple targets, T+0 fast-exit note.

cost — So sánh phí broker

python skills/vn30-derivatives-planner/scripts/vn30_derivatives_planner.py cost \
  --contracts 5 --entry 1283.0 --exit 1265.0 \
  --side short \
  --brokers vps,ssi,vndirect,hsc,mbs,tcbs,dnse \
  --output-dir reports/

Output: cost / net P&L per broker, spread.

Tiêu chí cho hedge sizing

Số contract short để hedge cash equity:

contracts_needed = (cash_exposure_vnd × portfolio_beta × hedge_ratio) /
                   (vn30_spot × 100,000)

Round to integer (contracts không chia nhỏ được). Hedge ratio 1.0 = full hedge, 0.5 = half hedge.

Trade plan risk math

Trên VN30 Futures, mỗi 0.1 point thay đổi = 10,000 VND/HĐ.

risk_per_contract_vnd = |entry - stop| × 100,000
contracts = floor(account_risk_vnd / risk_per_contract_vnd)
im_required_per_contract = entry × 100,000 × 0.18  (approx 18% IM)

Output Format

hedge output

{
  "schema_version": "1.0",
  "subcommand": "hedge",
  "inputs": {
    "cash_exposure_vnd": 1000000000,
    "portfolio_beta": 1.05,
    "vn30_spot": 1280.0,
    "hedge_ratio": 1.0
  },
  "result": {
    "contracts_raw": 8.20,
    "contracts_actual": 8,
    "contract_notional_vnd": 128000000,
    "total_notional_vnd": 1024000000,
    "im_required_vnd": 184320000,
    "hedge_coverage_pct": 97.5,
    "basis_assumed": "spot",
    "slippage_note": "Assumes futures = spot. Real basis typically 2-5 points away — add 0.2-0.4% margin."
  }
}

plan output

{
  "schema_version": "1.0",
  "subcommand": "plan",
  "side": "short",
  "trade_plan": {
    "entry": 1283.0,
    "stop": 1300.0,
    "risk_per_contract_vnd": 1700000,
    "contracts": 5,
    "max_loss_vnd": 8500000,
    "max_loss_pct": 0.85,
    "im_required_vnd": 115470000,
    "leverage_implied": 5.55,
    "targets": [
      {"name": "T1 (1R)", "price": 1266.0, "size_fraction": 0.33},
      {"name": "T2 (2R)", "price": 1249.0, "size_fraction": 0.33},
      {"name": "T3 (3R)", "price": 1232.0, "size_fraction": 0.34}
    ]
  },
  "fees_estimate": {
    "round_trip_fee_per_contract_vnd": 18000,
    "total_fees_vnd": 90000
  },
  "settlement_note": "T+0 cash settlement. Position can be closed same session."
}

Resources

  • references/vn_futures_mechanics.md — Contract spec, roll calendar, trading hours
  • references/vn_futures_fees.md — Per-CTCK fee table
  • scripts/vn30_derivatives_planner.py — Main CLI
  • Cross-references:
    • skills/vn-sector-analyst/ — regime hint → hedge timing
    • skills/vn-portfolio-manager/ — net exposure (long cash − short futures)
    • skills/vn-tax-fee-calculator/ — parent for fee patterns

Nguyên tắc

  1. VN30 Futures là leverage — IM 18% = 5.5x. Lỗ nhanh nếu sai. Position-size theo total notional, không phải IM.
  2. T+0 = không có cushion — Stop loss phải nghiêm túc. Không hold qua đêm position lớn nếu chưa quen.
  3. Roll trước expiry — VN30F1M expire last Thursday. Roll 2-3 sessions trước để tránh thin liquidity.
  4. Basis volatility — Futures có thể trade premium/discount vs spot. Khi spread > 5 points, cẩn trọng (signal vốn ngoại defensive hoặc speculate mạnh).
  5. Hedge ≠ Speculation — Khi hedge cash portfolio, mục tiêu là neutral risk, không phải lãi từ futures. P&L futures bù P&L cash.
  6. Trade plan có IM check — Một trade plan không hợp lệ nếu IM > 30% account (over-leveraged).

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