14:00–15:00：DRAM现货、资金流与收盘回撤5条事件

[
  {
    "event_id": "trendforce-global-20260828-dram-spot-1440",
    "title": "DRAM现货14:40更新DDR4 8Gb均价44.189",
    "event_time_utc": "2026-08-28T06:40:00Z",
    "event_time_quality": "exact",
    "published_at_utc": "2026-08-28T06:40:00Z",
    "event_type": "price_quote",
    "asset_keys": ["SEMICONDUCTOR"],
    "direction_score": {"SEMICONDUCTOR": 0},
    "confidence": 92,
    "horizon": "intraday",
    "raw_facts": {
      "measurement_time": "TrendForce DRAM Spot Last Update 2026-08-28 14:40 (GMT+8)；页面同时提示Early notice 14:20、next session 17:50",
      "actual": {
        "DDR5_16Gb_4800_5600_session_average": "53.933，Session Change 0.00%",
        "DDR5_16Gb_eTT_session_average": "23.80，0.00%",
        "DDR4_16Gb_3200_session_average": "91.293，+0.27%",
        "DDR4_16Gb_eTT_session_average": "11.475，+0.44%",
        "DDR4_8Gb_3200_session_average": "44.189，+0.40%",
        "DDR4_8Gb_eTT_session_average": "4.406，+1.01%",
        "DDR3_4Gb_1600_1866_session_average": "13.93，-0.01%",
        "price_unit": "原文未披露货币单位，沿用TrendForce页面Session Average原值照抄"
      },
      "consensus": "原文未披露",
      "prior": "相对同日11:00锚点DDR5 16Gb 53.933（0.00%）、DDR4 16Gb 91.293（+0.27%）、DDR4 8Gb 44.189（+0.40%）主均价持平；本条为Last Update 14:40新会话锚，可发；DDR4 16Gb eTT 11.475、DDR4 8Gb eTT 4.406为该锚细节"
    },
    "transmission_chain": "DRAM现货会话锚更新且DDR5主规格持平、DDR4小幅上行→存储现货链短线中性→SEMICONDUCTOR日内中性。",
    "invalidation_conditions": "TrendForce同日后续Last Update改写本会话均价或撤销14:40更新；页面数据与抓取严重不符。",
    "source_urls": [
      "https://www.trendforce.com/price/dram/dram_spot"
    ],
    "source_tier": "B"
  },
  {
    "event_id": "cls-cn-20260828-electronics-fundflow-1420",
    "title": "电子净流出120.61亿胜宏净卖21.20亿",
    "event_time_utc": "2026-08-28T06:20:27Z",
    "event_time_quality": "exact",
    "published_at_utc": "2026-08-28T06:20:27Z",
    "event_type": "fund_flow",
    "asset_keys": ["SEMICONDUCTOR"],
    "direction_score": {"SEMICONDUCTOR": -2},
    "confidence": 90,
    "horizon": "intraday",
    "raw_facts": {
      "measurement_time": "财联社详情页原生时间2026-08-28 14:20:27；口径为当日主力资金盯盘快照",
      "actual": {
        "sector_inflow": "基础化工、计算机、能源金属等板块净流入",
        "sector_outflow": "电子、半导体、通信等板块净流出",
        "electronics_net_outflow": "电子板块净流出120.61亿元",
        "stock_net_buy_top": "中际旭创净买入8.24亿元居首；星网锐捷、三六零、香农芯创主力资金净流入居前",
        "stock_net_sell_top": "胜宏科技遭净卖出21.20亿元居首；兆易创新、澜起科技、亨通光电主力资金净流出额居前",
        "related_page_tags_pct": "详情页关联标签瞬时值：胜宏科技-8.15%、亨通光电-3.65%、兆易创新-3.50%、香农芯创+4.09%、三六零+6.65%、澜起科技-3.72%、中际旭创-0.90%、星网锐捷+10.01%"
      },
      "consensus": "原文未披露",
      "prior": "相对同日10:55半导体净流出超48亿、中际旭创净买超15亿/胜宏净卖超11亿快照，本条为14:20电子/半导体资金流新量级与个股排序"
    },
    "transmission_chain": "电子与半导体板块主力资金大幅净流出、PCB龙头胜宏遭最大净卖出→AI硬件链拥挤交易兑现→SEMICONDUCTOR日内偏负。",
    "invalidation_conditions": "财联社撤回报价或同时段官方/交易所口径资金流与所列120.61亿、21.20亿严重不符。",
    "source_urls": [
      "https://www.cls.cn/detail/2467446"
    ],
    "source_tier": "B"
  },
  {
    "event_id": "cls-hk-20260828-memory-chip-board-1419",
    "title": "港股存储链回落海力士两倍做多跌8%",
    "event_time_utc": "2026-08-28T06:19:45Z",
    "event_time_quality": "exact",
    "published_at_utc": "2026-08-28T06:19:45Z",
    "event_type": "price_quote",
    "asset_keys": ["SEMICONDUCTOR"],
    "direction_score": {"SEMICONDUCTOR": -2},
    "confidence": 88,
    "horizon": "intraday",
    "raw_facts": {
      "measurement_time": "财联社详情页原生时间2026-08-28 14:19:45；口径为港股盘中存储芯片概念快照",
      "actual": {
        "board": "港股存储芯片概念股下跌",
        "names": {
          "南方两倍最高做多SK海力士": "跌8%",
          "南方两倍做多三星电子": "跌超6%",
          "澜起科技": "跌4%",
          "兆易创新": "跌近4%"
        }
      },
      "consensus": "原文未披露",
      "prior": "相对当日12:00港股午评兆易/澜起跌3%及存储走弱叙述，本条为14:19含杠杆产品与设计股的新幅度快照"
    },
    "transmission_chain": "港股存储杠杆产品与设计股同步回撤→海外存储风险偏好降温外溢→SEMICONDUCTOR短线偏负。",
    "invalidation_conditions": "港交所/产品发行人同时段报价与所列跌幅严重不符；媒体撤回报价。",
    "source_urls": [
      "https://www.cls.cn/detail/2467442"
    ],
    "source_tier": "B"
  },
  {
    "event_id": "cls-hk-20260828-pcb-board-weak-1453",
    "title": "港股PCB回落胜宏跌超12%芯碁跌超6%",
    "event_time_utc": "2026-08-28T06:53:23Z",
    "event_time_quality": "exact",
    "published_at_utc": "2026-08-28T06:53:23Z",
    "event_type": "price_quote",
    "asset_keys": ["SEMICONDUCTOR"],
    "direction_score": {"SEMICONDUCTOR": -2},
    "confidence": 88,
    "horizon": "intraday",
    "raw_facts": {
      "measurement_time": "财联社详情页原生时间2026-08-28 14:53:23；口径为港股PCB概念盘中快照",
      "actual": {
        "board": "港股PCB概念股回落",
        "names": {
          "胜宏科技": "跌超12%",
          "芯碁微装": "跌超6%",
          "大族数控": "跌3%",
          "鼎泰高科": "跌超2%",
          "中国建材": "跌超1%"
        }
      },
      "consensus": "原文未披露",
      "prior": "相对当日12:00港股午评胜宏跌逾7%及09:53胜宏高阶HDI排单至2027消息面，本条为14:53更深回撤新快照；非订单事实更新"
    },
    "transmission_chain": "港股PCB龙头与相关设备股加深回撤→高阶互联链短线拥挤交易继续兑现→SEMICONDUCTOR日内偏负。",
    "invalidation_conditions": "港交所同时段个股涨跌幅与所列胜宏/芯碁等严重不符；媒体撤回报价。",
    "source_urls": [
      "https://www.cls.cn/detail/2467496"
    ],
    "source_tier": "B"
  },
  {
    "event_id": "cls-cn-20260828-a-share-close-star50-1502",
    "title": "收盘科创50跌1.85%创业板跌1.41%",
    "event_time_utc": "2026-08-28T07:02:59Z",
    "event_time_quality": "exact",
    "published_at_utc": "2026-08-28T07:02:59Z",
    "event_type": "price_quote",
    "asset_keys": ["SEMICONDUCTOR"],
    "direction_score": {"SEMICONDUCTOR": -2},
    "confidence": 92,
    "horizon": "intraday",
    "raw_facts": {
      "measurement_time": "财联社详情页原生时间2026-08-28 15:02:59；个股收盘价以新浪行情接口约15:05交叉核验，单位为人民币元/点",
      "actual": {
        "cls_close_narrative": "双创指数集体冲高回落，此前一度涨超1%；沪深两市成交额2.1万亿，较上一个交易日缩量242亿；全市场超3000只个股上涨；PTFE概念昊华科技、沃特股份2连板；超节点星网锐捷2连板；AI应用端鼎捷数智20cm涨停、天娱数科一字涨停",
        "cls_index_close": {
          "科创50": "跌1.85%（标题与关联标签）",
          "沪指": "跌0.11%",
          "深成指": "跌0.68%",
          "创业板指": "跌1.41%"
        },
        "cross_check_sina_hq_approx_1505": {
          "上证指数": "3952.179点，昨收3956.571，约-0.11%",
          "深证成指": "13953.065点，昨收14048.876，约-0.68%",
          "创业板指": "3424.401点，昨收3473.355，约-1.41%",
          "科创50": "1662.1493点，昨收1693.4796，约-1.85%",
          "胜宏科技": "241.60元，昨收263.05，约-8.15%",
          "金戈新材": "40.32元，昨收44.19，约-8.76%",
          "普冉股份": "401.18元，昨收429.89，约-6.68%",
          "深科达": "82.40元，昨收88.28，约-6.66%",
          "臻宝科技": "304.60元，昨收326.07，约-6.58%",
          "澜起科技": "213.00元，昨收221.22，约-3.72%",
          "亨通光电": "68.70元，昨收71.30，约-3.65%",
          "兆易创新": "396.82元，昨收411.20，约-3.50%",
          "新易盛": "399.00元，昨收409.10，约-2.47%",
          "中际旭创": "858.35元，昨收866.12，约-0.90%",
          "香农芯创": "172.10元，昨收165.33，约+4.09%",
          "星网锐捷": "36.69元，昨收33.35，约+10.01%"
        }
      },
      "consensus": "原文未披露",
      "prior": "相对13:38创业板跌逾1%、14:00半导体/CPO午后走弱快照，本条为15:00官方收盘指数与交叉核验个股终值；PTFE/超节点强势与半导体芯片、CPO相关个股收跌并存"
    },
    "transmission_chain": "科创50与创业板收跌且PCB/存储设计/设备相关个股收盘跌幅居前→AI硬件链日内拥挤交易兑现完成→SEMICONDUCTOR收盘偏负。",
    "invalidation_conditions": "交易所官方收盘指数/个股涨跌幅与所列科创50、创业板及胜宏等严重不符；财联社撤回收评。",
    "source_urls": [
      "https://www.cls.cn/detail/2467519",
      "https://hq.sinajs.cn/list=sz399006,sh000688,sh000001,sz399001,sz300476,sh688797,sh688766,sh688328,bj920083,sh603986,sh688008,sz300502,sz300308,sz300475,sz002396,sh600487"
    ],
    "source_tier": "B"
  }
]