有小伙伴在ptrade中使用融资交易的时候发现，margincash_open这个函数的limit_price输入0，提示无法交易，这是怎么回事呢？ 其实，limit_price输入0是错误的，因为这个参数是让你输入一个保护价，而非委托限价。首先，我们看一下这个参数的文档描述： | | | VIP佣金费率表 | | --- | --- | --- | | 股票 | 万0. 854 | 普通账户=信用账户 | | 融资 | 3.8%-4.5% | 永久费率,开户方式灵活 | | ETF/LOF | 万0.5 | 货币/债券ETF:不收费 | | 可转债 | 万0.5 | 沪0起收 深0.1起收 | | 北交所 | 月3 | 0起收 | | 港股通 | 万0.8 | 0起收 | | 国债逆回购 | 1折 | 0起收 | | 国债 | 记账/凭证 | 上海:百万分之五;深圳:十万分之五 | | | | 渠道; 17828419383 | | 交易通道 | 盘前/盘中打板 | VIP通道、独立交易单元 | | 量化工具 | LDP极速柜台 | QMT、miniQMT、Ptrade | | 其他服务 | L2行情 | ...

Group 1 - The core point of the article highlights that Sichuan Chengyu's financing buy-in volume exceeded 50% of the total trading volume on August 28, leading to its appearance on the "Dragon and Tiger List" [2] - Sichuan Chengyu's closing price was 5.62 yuan, with a slight increase of 0.18% on that day, and the total trading volume reached 20,125,800 shares, with a total transaction amount of 112.65 million yuan [2] - The financing buy-in volume accounted for 55.71% of the total trading volume, with a total financing buy-in amount of 60.24 million yuan, where the largest financing buy-in member was CITIC Securities Co., Ltd., contributing 23.86 million yuan [2] Group 2 - In the past month, Sichuan Chengyu was among the stocks with financing buy-in volumes exceeding 50% of total trading volume, specifically at 55.71% on August 28 [3] - The stock's trading performance on that day included a total trading volume of 20,125,800 shares and a transaction amount of 112.65 million yuan [3] - Other notable stocks included Cambridge Technology, which had a financing buy-in volume of 60.23% on August 27, with a significant price increase of 10% [3]

Group 1 - Cambridge Technology appeared on the trading leaderboard on August 27 due to financing buy volume exceeding 50% of the total trading volume [2] - The closing price of Cambridge Technology was 88.19 yuan, with a daily increase of 10.00% [2] - The total trading volume for the day was 3.9304 million shares, with a total transaction amount of 346.6192 million yuan [2] - The financing buy volume accounted for 60.23% of the total trading volume, with a total financing buy amount of 206.2147 million yuan from the participating brokerage firms [2] - The largest financing buy member was China Galaxy Securities Co., Ltd., contributing 176.38 million yuan on that day [2] Group 2 - In the past month, stocks with financing buy volume exceeding 50% of total trading volume included Cambridge Technology, which had a financing buy volume ratio of 60.23% on August 27 [3] - The stock's daily price change was an increase of 10.00% [3] - The total trading volume for Cambridge Technology on that day was 3.9304 million shares, with a total transaction amount of 346.6192 million yuan [3]