prompts/US/2026-W37.txt

You are a quantitative decision model participating in a public benchmark. You may only pick from the "stock universe" listed below — no web search, no tickers outside this list.

Output strictly in this JSON format, no extra text:
{
  "orders": [
    { "ts_code": "AAPL", "action": "buy", "target_weight_pct": 15, "reason": "one short sentence, under 40 words" }
  ]
}

Constraints:
- target_weight_pct is the target weight (0-100) of this stock in total assets; all buy orders combined must not exceed 95 (keep at least 5% cash)
- action must be "buy" / "sell" / "hold"
- hold at most 2 stocks at a time — stay concentrated, do not diversify
- once submitted this week's decision cannot be changed, so answer carefully
- the data snapshot you see is frozen at a specific point in time and does not reflect what happens afterward — do not assume you know the future

Stock universe & data snapshot:
{"week_key":"2026-W37","market":"US","frozen_at":"2026-09-07T12:01:20.324Z","universe":[{"ts_code":"AAPL","name":"Apple","last_close":319.9700012207031},{"ts_code":"MSFT","name":"Microsoft","last_close":499.70001220703125},{"ts_code":"GOOGL","name":"Alphabet","last_close":338.4599914550781},{"ts_code":"AMZN","name":"Amazon","last_close":258.510009765625},{"ts_code":"NVDA","name":"NVIDIA","last_close":230.36000061035156},{"ts_code":"META","name":"Meta Platforms","last_close":616.77001953125},{"ts_code":"TSLA","name":"Tesla","last_close":354.0799865722656},{"ts_code":"BRK-B","name":"Berkshire Hathaway","last_close":506.0299987792969},{"ts_code":"JPM","name":"JPMorgan Chase","last_close":358.6400146484375},{"ts_code":"V","name":"Visa","last_close":375.07000732421875},{"ts_code":"UNH","name":"UnitedHealth","last_close":397.1400146484375},{"ts_code":"JNJ","name":"Johnson & Johnson","last_close":275.2300109863281},{"ts_code":"WMT","name":"Walmart","last_close":107.13999938964844},{"ts_code":"PG","name":"Procter & Gamble","last_close":146.44000244140625},{"ts_code":"MA","name":"Mastercard","last_close":579.2100219726562},{"ts_code":"HD","name":"Home Depot","last_close":321.04998779296875},{"ts_code":"XOM","name":"Exxon Mobil","last_close":159.47000122070312},{"ts_code":"CVX","name":"Chevron","last_close":208.60000610351562},{"ts_code":"ABBV","name":"AbbVie","last_close":256.4599914550781},{"ts_code":"KO","name":"Coca-Cola","last_close":88.06999969482422},{"ts_code":"PEP","name":"PepsiCo","last_close":137.6300048828125},{"ts_code":"COST","name":"Costco","last_close":915.739990234375},{"ts_code":"AVGO","name":"Broadcom","last_close":357.8999938964844},{"ts_code":"ADBE","name":"Adobe","last_close":266.510009765625},{"ts_code":"MRK","name":"Merck","last_close":150.3300018310547},{"ts_code":"PFE","name":"Pfizer","last_close":28.450000762939453},{"ts_code":"TMO","name":"Thermo Fisher","last_close":613.780029296875},{"ts_code":"CSCO","name":"Cisco","last_close":109.19999694824219},{"ts_code":"ACN","name":"Accenture","last_close":186.72000122070312},{"ts_code":"NFLX","name":"Netflix","last_close":78.25},{"ts_code":"ABT","name":"Abbott Labs","last_close":108.33000183105469},{"ts_code":"DIS","name":"Disney","last_close":105.30999755859375},{"ts_code":"INTC","name":"Intel","last_close":95.80000305175781},{"ts_code":"AMD","name":"AMD","last_close":477.57000732421875},{"ts_code":"CRM","name":"Salesforce","last_close":259.2300109863281},{"ts_code":"NKE","name":"Nike","last_close":38.400001525878906},{"ts_code":"QCOM","name":"Qualcomm","last_close":168.74000549316406},{"ts_code":"TXN","name":"Texas Instruments","last_close":258.44000244140625},{"ts_code":"ORCL","name":"Oracle","last_close":158.77999877929688},{"ts_code":"IBM","name":"IBM","last_close":234.88999938964844},{"ts_code":"GE","name":"GE Aerospace","last_close":337.1199951171875},{"ts_code":"CAT","name":"Caterpillar","last_close":813.9400024414062}],"rules":{"trading_unit":"1 share (no board lot)","settlement":"T+1 for cash settlement, but same-day buy can be sold same day (no A-share-style T+1 lock)","price_limit":"No per-stock circuit-limit mechanism in this simulation","stamp_duty":"None","commission":"Modeled as commission-free, matching most mainstream US retail brokers today"},"known_gaps":"No earnings/news summary input; universe is a manually-curated large-cap list, not a live S&P 500 constituent feed"}

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