周四，A股呈弱势盘整走势，根据交易所数据，上证指数涨0.16%报3876.37点，深证成指跌1.29%，创业板指大跌2.17%，沪深300跌0.59%，科创50跌 1.46%。 沪深两市2748股上涨，2232股下跌，194股持平，合计成交额1.66万亿元，较前一交易日缩量约1556.64亿元。 他进一步分析，上升周期里的调整，找调整低点的难度比较大，本周二上证指数创新低之后，浪型上完成了ABC走势，调整周期也到达了23个交易日，这 具备了完成调整的最低要求，请注意是最低要求。 "如果大方向是判断上升途中的调整，低点就不要过于追求完美，我给的建议是：差不多就行。之前差的有点多，只有创新低，确定了23个交易日的调整周 期后，这个点上才大幅改善，具备了乐观的基础。"徐小明表示，不足的地方很多，比如：月线的序列问题，指数之间的协调性问题，空间的不足问题等 等。可以乐观，但还没有到盲目乐观、积极乐观的程度，就是谨慎乐观。 风险提示：此文章不构成投资建议。股市有风险，投资需谨慎。 股票频道更多独家策划、专家专栏，免费查阅>> 责任编辑：山上 大盘主力资金净流出406.88亿元，航天航空、医药商业、银行、文化传媒、保险等 ...

（文章来源：每日经济新闻） 每经AI快讯，有投资者在投资者互动平台提问：董秘您好，近日《基于星闪短距通信技术的汽车数字 钥匙蓝皮书》发布，公司旗下大唐联仪参入星闪联盟发布的消息是否属实？ 信科移动（688387.SH）12月18日在投资者互动平台表示，公司下属大唐联仪公司是星闪联盟成员，在 星闪新短距技术上布局了多款仪表产品，其中涉及汽车数字钥匙的星闪新短距空口测试仪表。 ...

通宇通讯今日上涨2.34%，全天换手率41.04%，成交额45.17亿元，振幅6.49%。龙虎榜数据显示，机构 净买入1.28亿元，深股通净卖出2036.82万元，营业部席位合计净卖出7440.54万元。 | 买/卖 | 会员营业部名称 | 买入金额（万元） | 卖出金额（万元） | | --- | --- | --- | --- | | 买一 | 深股通专用 | 10939.83 | 12976.65 | | 买二 | 机构专用 | 9939.34 | 2888.15 | | 买三 | 机构专用 | 9709.40 | 4360.55 | | 买四 | 中国银河证券股份有限公司大连黄河路证券营业部 | 9423.49 | 5961.23 | | 买五 | 机构专用 | 7670.28 | 7280.48 | | 卖一 | 深股通专用 | 10939.83 | 12976.65 | | 卖二 | 机构专用 | 7670.28 | 7280.48 | | 卖三 | 广发证券股份有限公司嘉兴禾兴南路证券营业部 | 1.63 | 6067.96 | | 9423.49 5961.23 中国银河证券股份有限公司大连黄 ...

资金流向方面，今日该股主力资金净流入4237.09万元，其中，特大单净流入5671.96万元，大单资金净 流出1434.87万元。近5日主力资金净流入4237.09万元。（数据宝） 万隆光电12月18日交易公开信息 | 买/ | 会员营业部名称 | 买入金额（万 | 卖出金额（万 | | --- | --- | --- | --- | | 卖 | | 元） | 元） | | 买一 | 广发证券股份有限公司台州东海大道证券营业部 | 2999.99 | 0.00 | | 买二 | 广发证券股份有限公司杭州向往街证券营业部 | 2790.01 | 0.00 | | 买三 | 国泰海通证券股份有限公司重庆观音桥步行街证券营业 部 | 731.78 | 2.47 | | 买四 | 国投证券股份有限公司深圳红荔西路证券营业部 | 588.23 | 0.00 | | 买五 | 国信证券股份有限公司上海分公司 | 381.06 | 5.87 | | 卖一 | 平安证券股份有限公司四川分公司 | 0.00 | 1320.12 | | 卖二 | 中信证券股份有限公司杭州凤起路证券营业部 | 0.00 | 339.68 | | ...

| 成交量（万 | 成交金额 | 成交价格 | 相对当日收盘折溢 | 买方营业部 | 卖方营 | | --- | --- | --- | --- | --- | --- | | 股） | （万元） | （元） | 价（%） | | 业部 | | 6.50 | 210.80 | 32.43 | 0.00 | 中国国际金融股份有限公司 | 机构专 | | | | | | 深圳分公司 | 用 | （文章来源：证券时报网） 证券时报·数据宝统计显示，通宇通讯今日收盘价为32.43元，上涨2.34%，日换手率为41.04%，成交额 为45.17亿元，全天主力资金净流出1.46亿元，近5日该股累计上涨14.72%，近5日资金合计净流入1.72亿 元。 两融数据显示，该股最新融资余额为9.60亿元，近5日增加1.61亿元，增幅为20.21%。（数据宝） 12月18日通宇通讯大宗交易一览 通宇通讯12月18日大宗交易平台出现一笔成交，成交量6.50万股，成交金额210.80万元，大宗交易成交 价为32.43元。该笔交易的买方营业部为中国国际金融股份有限公司深圳分公司，卖方营业部为机构专 用。 进一步统计，近3个月内该股累计发 ...

证券之星消息，12月18日通信设备板块较上一交易日下跌1.48%，新易盛领跌。当日上证指数报收于 3876.37，上涨0.16%。深证成指报收于13053.98，下跌1.29%。通信设备板块个股涨跌见下表： 从资金流向上来看，当日通信设备板块主力资金净流出32.44亿元，游资资金净流入7.38亿元，散户资金 净流入25.07亿元。通信设备板块个股资金流向见下表： 以上内容为证券之星据公开信息整理，由AI算法生成（网信算备310104345710301240019号），不构成投资建议。 fund ...

格隆汇12月18日丨烽火通信(600498.SH)公布，截至2025年12月17日，公司通过集中竞价交易方式已回 购A股股份数量为309.97万股，已回购股份约占公司总股本的0.23%，回购成交的最高价格为26.26元/ 股，回购成交的最低价格为23.14元/股，成交总金额为7500.33万元人民币（不含交易费用），公司回购 股份已达到回购计划金额下限，本次股份回购计划实施完毕。 ...

Market Overview - The Hang Seng Index closed up by 0.12% while the Hang Seng Tech Index fell by 0.73% [1] - The Hong Kong Tech ETF (159751) decreased by 1.16% and the Hang Seng Hong Kong Stock Connect ETF (159318) dropped by 0.22% [1] Sector Performance - The passenger airline and communication equipment sectors showed the highest gains [1] - The electrical equipment, hotel, and resort REIT sectors experienced the largest declines [1] Individual Stock Movements - China Eastern Airlines saw an increase of 8.08%, while Zhaojin Mining rose by 6.21% [1] - China Southern Airlines increased by 5.57% and Air China rose by 4.75% [1] - E-Hi Car Services fell by 10.73%, and Cao Cao Mobility dropped by 12.35% [1] - MicroPort Medical increased by 7.5% [1]

Core Viewpoint - The recent announcement by Wanlong Optoelectronics regarding the acquisition of 100% of Zhongkong Information has attracted market attention, with opinions divided on whether it represents a significant gamble or a weak partnership [1][11]. Group 1: Wanlong Optoelectronics - Wanlong Optoelectronics has faced continuous financial pressure, reporting a net profit loss for three consecutive years since 2022, with a total loss exceeding 230 million yuan [2][12]. - The company's revenue from 2022 to 2025 has shown a declining trend, with figures of 531 million yuan, 358 million yuan, 346 million yuan, and 201 million yuan, reflecting year-on-year decreases of 27.18%, 32.49%, 3.29%, and 23.52% respectively [2][12][13]. - In the first three quarters of 2025, the company reported a revenue of only 201 million yuan, with a net profit loss of 10.3 million yuan [2][12]. Group 2: Zhongkong Information - Zhongkong Information, the target of the acquisition, is a service provider for infrastructure digitization, focusing on urban traffic and other related sectors [4][15]. - The company attempted to go public on the ChiNext board, with its IPO application accepted in June 2023, but it was withdrawn in August 2024 after two rounds of inquiries [4][15]. - Financially, Zhongkong Information has also faced challenges, with revenue figures of 3.085 billion yuan, 3.325 billion yuan, 3.185 billion yuan, and 2.64 billion yuan from 2021 to 2024, showing a decline in net profit from 150 million yuan to 5.5 million yuan over the same period [5][16]. Group 3: Financial Risks - Zhongkong Information has high accounts receivable, which increased from 1.513 billion yuan to 1.955 billion yuan from 2021 to 2023, with the proportion of accounts receivable to revenue rising from 49.05% to 61.39% [7][18]. - The company's debt ratio has remained high, with figures of 78.12%, 73.98%, and 71.43% from 2021 to 2023, and still at 70% in 2024 [7][18]. - The acquisition's success is contingent on setting performance commitments, which are complicated by Zhongkong Information's declining performance and the potential impact of various external factors [9][20].

Core Viewpoint - Xintian Technology (300615) announced that as of the disclosure date, the actual guarantee amount within the scope of the consolidated financial statements is 320 million yuan, accounting for 60.70% of the company's audited net assets for the fiscal year 2024 [1] Summary by Categories Company Guarantees - The company and its subsidiaries have provided guarantees amounting to 320 million yuan, which includes the current guarantee [1] - The guarantees represent 60.70% of the company's audited net assets for the year 2024 [1] - There are no overdue guarantees or guarantees involving litigation or losses due to judgments against the company [1]