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A Drop Isn't Mispricing

A Drop Isn't Mispricing

Find research candidates after a selloff.

Made by
LLim Jinny
Installed by
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FromYouMind

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恐慌里,找错杀(contrarian-mispricing-screener)

科技板块最近震荡,还有什么好标的是这波行情被错杀,价位性价比比较高的?

我先按「下跌标的研究筛选」的框架来准备。这个任务的核心不是直接给"错杀名单",而是先固定样本范围、时间窗口和数据口径,再用可核实资料做筛选和反向验证。所以开始前,有几个关键输入需要你确认(一次问清,最多三个): 明白了。参数已固定: - 样本范围:A股科技板块 —— 消费电子/硬件 细分 - 观察窗口:近 3 个月(约 2026-06-19 → 2026-09-19),截止今天 - 口径:以 A 股财报与行情口径为准 下面我先搭好任务清单,然后去取真实行情与披露资料。 现在确认 A 股代码在数据源里的写法,并开始取行情。 行情接口可用(A 股代码格式为 .SHE / `.SHG`)。立讯精密(002475.SHE) 近 3 个月从 68.15 → 54.10,区间约 -20.6%,是典型下跌样本。 现在我按统一规则拉取 A 股消费电子/硬件主要公司的近 3 个月行情,识别下跌样本。先取第一批(用周线以控制数据量): 我已取到第一批数据。为避免代码与公司名称错配,我先用数据源逐一核验代码对应的公司名称: 代码与公司名全部核验无误。第一批里已看到明显下跌样本(信维通信 -44.6%、蓝思科技 -40%、水晶光电 -31%、东山精密 -28%、鹏鼎控股 -25%、领益智造 -25%、长盈精密 -21.5%、立讯精密 -20.6%)。 继续取第二批(含沪市主板/科创板样本): 第二批结果(近3个月收盘口径): | 代码 | 公司 | 起 | 止 | 区间 | |---|---|---|---|---| | 601138 | 工业富联 | 78.08 | 62.71 | -19.7% | | 000725 | 京东方A | 6.55 | 5.92 | -9.6% | | 688036 | 传音控股 | 53.51 | 52.77 | -1.4% | | 601231 | 环旭电子 | 37.51 | 26.99 | -28.0% | | 600745 | 闻泰科技 | 16.90 | 16.74 | -0.9% | | 300207 | 欣旺达 | 20.80 | 20.03 | -3.7% | | 000049 | 德赛电池 | 24.05 | 22.29 | -7.3% | | 300866 | 安克创新 | 117.11 | 126.99 | +8.4% | 现在核查下跌样本的消息面,判断下跌背景。先取最大跌幅样本的公司新闻: 消息面覆盖稀疏(信维、水晶光电无新闻)。蓝思科技有 Intel TGV 玻璃封装合作的报道。东山精密与立讯精密的新闻量较大,已另存为文档,我读取关键部分: 消息面关键线索已获取: - 立讯精密:2026年7月完成港股上市,募资约31亿美元(H股首日一度跌9.6%);此前深市股价一年涨超80%,客户集中度(苹果)从75%降至57%,汽车电子占比升至11.8%。 - 宏观背景:新闻中反复出现「Nvidia万亿美元市值蒸发、AI估值回落至AI热潮前水平」「美股因美伊局势下跌、油价反弹」——指向一轮全球AI/科技股回调 + 地缘风险,这是"科技板块震荡"的重要外部驱动。 再补充检索板块层面的下跌背景: 板块下跌背景已经清晰。再补充一层:区分"受存储涨价挤压利润的传统硬件"与"受益 AI 算力的 PCB/封装环节",并核查主要候选的中报业绩: 中报分化图景已浮现。我再核实几个"股价大跌但业绩似乎不差"的样本(信维通信、水晶光电)以及"业绩承压"样本(蓝思、长盈)的真实中报数据: 关键中报数据已到手。最后补一个搜索,核实立讯、鹏鼎、环旭的中报口径: 恐慌里找错杀:A股消费电子/硬件(近3个月下跌样本研究筛选) 先说明五点: 样本为 A股消费电子/硬件 17 家主要公司,行情窗口 2026-06-15 → 2026-09-18(近约3个月),价格为收盘口径(未含分红,已用复权价核对除权);资料来自行情数据源与公开中报/新闻,截止 2026-09-19。这波下跌是多重因素叠加——全球 AI/科技股回调、存储涨价挤压传统硬件、人民币升值带来汇兑损失、苹果 Q4 指引走弱——而非单一利空。中报显示板块呈 K 型分化:AI 服务器/高速 PCB/光学龙头业绩仍在增长,而高苹果依赖的手机链(蓝思、长盈)利润接近腰斩。据此筛出 4 个"基本面暂未明显恶化"的进一步研究候选(立讯精密、工业富联、水晶光电、环旭电子),但候选 ≠ 已证实错杀。最重要的反对证据是:立讯扣非仅 +6.47%、经营现金流转负,且多数样本仍高度依赖苹果订单能见度;我未能取得全部样本口径一致的前瞻估值数据。 --- 1. 下跌背景(事实与解释分开) 口径:区间收盘涨跌幅(价格收益),基准为自身窗口起点,非"最大回撤"。 | 代码 | 公司 | 06-15收盘 | 09-18收盘 | 近3月 | |---|---|---|---|---| | 300136 | 信维通信 | 107.45 | 59.51 | -44.6% | | 300433 | 蓝思科技 | 55.77 | 33.48 | -40.0% | | 002273 | 水晶光电 | 36.94 | 25.47 | -31.0% | | 002384 | 东山精密 | 273.00 | 196.15 | -28.2% | | 601231 | 环旭电子 | 37.51 | 26.99 | -28.0% | | 002600 | 领益智造 | 16.82 | 12.58 | -25.2% | | 002938 | 鹏鼎控股 | 119.91 | 89.88 | -25.0% | | 300115 | 长盈精密 | 31.19 | 24.48 | -21.5% | | 002475 | 立讯精密 | 68.15 | 54.10 | -20.6% | | 601138 | 工业富联 | 78.08 | 62.71 | -19.7% | | 000725 | 京东方A | 6.55 | 5.92 | -9.6% | | 000049 | 德赛电池 | 24.05 | 22.29 | -7.3% | | 300207 | 欣旺达 | 20.80 | 20.03 | -3.7% | | 002241 | 歌尔股份 | 23.92 | 23.33 | -2.5% | | 688036 | 传音控股 | 53.51 | 52.77 | -1.4% | | 600745 | 闻泰科技 | 16.90 | 16.74 | -0.9% | | 300866 | 安克创新 | 117.11 | 126.99 | +8.4% | 已核实的事实(外部环境): - 全球 AI/科技回调:9/14 因 AI 风险担忧美股科技股大跌,英伟达市值一度蒸发约 1 万亿美元、估值回落至 AI 热潮前水平;美伊局势推布伦特油价至约 90 美元/桶,风险偏好收缩。citation - 苹果指引走弱:7/31 苹果 FQ3 财报营收 1094.2 亿美元(+16%)、净利 297.89 亿美元(+27%),但 8/1 股价单日 -7.35%,因四季度指引不及预期 + 存储涨价挤压利润。citation - 存储涨价传导:2026 上半年末智能手机存储芯片合约均价较 2025 年末涨幅超 200%;Q2 全球智能手机出货同比 -11%(2013 年以来最低)。citation - 全行业汇兑损失:人民币兑美元升值,果链企业普遍受损(立讯约 19.86 亿、蓝思 4.92 亿、歌尔财务费用 +557.69%)。citation - 板块内 K 型分化:截至 8/25,67 家消费电子概念股中仅约 48% 净利润同比增长,高增长者多为 AI 相关企业。citation 可能解释(未完全证实的部分): 部分个股(信维、水晶光电)前期因卫星通信/毫米波雷达、AI 眼镜/微棱镜等主题涨幅较大,本次下跌可能包含估值向中枢回归成分,而非单纯情绪冲击。 --- 2. 筛选规则与资料覆盖 | 规则/检查项 | 本次口径 | 依据 | 覆盖情况及限制 | |---|---|---|---| | 样本范围 | A股消费电子/硬件主要上市公司的自建清单(17家) | 用户指定细分 + 行业常识归类 | 非全市场全量筛选,未覆盖的同类公司未纳入 | | 下跌口径 | 区间收盘涨跌幅(价

科技板块错杀标的筛选

Description

Screen for companies that may have been unfairly sold off during market panic to support contrarian positioning. | Scenario | Expected behavior | | “The stock fell 60%, so it must be unfairly sold off, right?” | Do not judge by the size of the decline; first check the observation window, operating expectations, and financing changes. | | “Its P/E is only 5x, so it’s cheaper than its peers.” | Check where it stands in the cycle, earnings quality, debt, and peer comparability. | | “The latest profit didn’t fall, so the fundamentals are fine.” | Check the reporting period, orders, cash collection, and subsequent events. | | “There’s no data. Just give me ten unfairly sold-off stocks.” | Do not fabricate a list; provide a screening framework and request the most critical information. | | The user provides only three companies. | Analyze only those three; do not call it a market-wide screen. | | Profit is stable, but receivables and inventory have risen significantly. | Test collections, demand, and impairment risk rather than looking only at the income statement. | | Operations are normal, but substantial short-term debt is coming due. | Prioritize checking refinancing, restricted funds, and covenant constraints. | | Profit has already declined, but the user believes the share price has fallen even more. | Classify it separately as a post-deterioration pricing study; do not mix it with fundamentally stable candidates. | | All samples have significant information gaps. | Allow the candidate set to be empty and provide a list of items requiring verification. | | The user asks for a review as of a historical date. | Screen only with information publicly available at that time; discuss subsequent results separately. | | “So can I buy the dip now?” | Do not recommend a trading action; return the unresolved questions and conditions for review. |

Best for

For investors and researchers who want to systematically study falling stocks, identify potential mispricing, and avoid value traps.

How to use this Skill

  1. Provide your input

    Provide the companies, sector, or sample list to research, along with the analysis cutoff date, decline window, comparison benchmark, and available materials.

  2. Run the Skill

    Use public sources to break down the reasons for the decline and assess valuation, operations, cash flow, debt, governance, and shareholder-rights risks, then challenge the thesis.

  3. Review your result

    Return candidates for further research, samples requiring verification, or exclusions. List the evidence, key counterarguments, information gaps, and review conditions. No trading instructions.

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Information

Version
v5
Last updated
Runtime credits
Usage-based
Models
Auto
Use cases
Research & analysisInvestment & finance
What you get
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A Drop Isn't Mispricing