| 日期 | 开盘 | 收盘 | 涨跌 | 涨幅 | 最低 | 最高 | 成交量 | 成交额 | 换手 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-05-20 | 19.21 | 18.86 | -0.03 | -0.16% | 18.51 | 19.23 | 435275 | 82057.53 | 6.81% | 0.00 |
| 2025-05-19 | 18.53 | 18.89 | 1.61 | 9.32% | 17.85 | 19.68 | 696926 | 130808.00 | 10.90% | 23.00 |
| 2025-05-16 | 16.67 | 17.28 | 0.45 | 2.67% | 16.60 | 17.63 | 253594 | 43697.02 | 3.97% | 8.00 |
| 2025-05-15 | 17.28 | 16.83 | -0.53 | -3.05% | 16.72 | 17.37 | 166259 | 28114.46 | 2.60% | 11.00 |
| 2025-05-14 | 17.12 | 17.36 | 0.24 | 1.40% | 16.99 | 17.47 | 171783 | 29681.51 | 2.69% | 56.00 |
| 2025-05-13 | 17.66 | 17.12 | -0.23 | -1.33% | 17.10 | 17.66 | 147973 | 25609.11 | 2.31% | 21.00 |
| 2025-05-12 | 17.12 | 17.35 | 0.33 | 1.94% | 17.09 | 17.80 | 216373 | 37750.86 | 3.38% | 0.00 |
| 2025-05-09 | 17.50 | 17.02 | -0.38 | -2.18% | 16.90 | 17.53 | 175618 | 30025.15 | 2.75% | 5.00 |
| 2025-05-08 | 17.13 | 17.40 | 0.14 | 0.81% | 17.03 | 17.43 | 145710 | 25262.14 | 2.28% | 10.00 |
| 2025-05-07 | 17.60 | 17.26 | -0.17 | -0.98% | 16.96 | 17.74 | 241206 | 41745.23 | 3.77% | 106.00 |
| 2025-05-06 | 16.61 | 17.43 | 1.13 | 6.93% | 16.58 | 17.58 | 366640 | 63203.48 | 5.74% | 41.00 |
| 2025-04-30 | 15.93 | 16.30 | 0.41 | 2.58% | 15.88 | 16.35 | 182436 | 29579.70 | 2.85% | 19.00 |
| 2025-04-29 | 16.16 | 15.89 | -0.27 | -1.67% | 15.86 | 16.35 | 168445 | 26858.41 | 2.64% | 76.00 |
| 2025-04-28 | 16.13 | 16.16 | -0.03 | -0.19% | 16.13 | 16.94 | 302532 | 49897.88 | 4.73% | 5.00 |
| 2025-04-25 | 16.01 | 16.19 | 0.22 | 1.38% | 15.98 | 16.29 | 119718 | 19340.52 | 1.87% | 31.00 |
| 2025-04-24 | 16.22 | 15.97 | -0.31 | -1.90% | 15.78 | 16.32 | 141886 | 22731.19 | 2.22% | 0.00 |
| 2025-04-23 | 16.51 | 16.28 | -0.16 | -0.97% | 16.13 | 16.77 | 184012 | 30094.24 | 2.88% | 44.00 |
| 2025-04-22 | 16.35 | 16.44 | 0.14 | 0.86% | 16.27 | 16.97 | 245169 | 40893.26 | 3.84% | 10.00 |
| 2025-04-21 | 16.14 | 16.30 | -0.05 | -0.31% | 16.05 | 16.40 | 142209 | 23097.66 | 2.22% | 6.00 |
| 2025-04-18 | 16.19 | 16.35 | 0.29 | 1.81% | 15.96 | 16.73 | 173764 | 28359.48 | 2.72% | 18.00 |
| 2025-04-17 | 16.14 | 16.06 | -0.15 | -0.93% | 16.00 | 16.33 | 110118 | 17816.78 | 1.72% | 14.00 |
| 2025-04-16 | 16.50 | 16.21 | -0.29 | -1.76% | 15.89 | 16.86 | 177162 | 28947.84 | 2.77% | 33.00 |
| 2025-04-15 | 16.68 | 16.50 | -0.18 | -1.08% | 16.38 | 16.78 | 132906 | 21942.93 | 2.08% | 0.00 |
| 2025-04-14 | 17.02 | 16.68 | -0.05 | -0.30% | 16.52 | 17.15 | 210148 | 35333.77 | 3.29% | 0.00 |
| 2025-04-11 | 16.38 | 16.73 | 0.35 | 2.14% | 16.08 | 17.15 | 227524 | 37989.41 | 3.56% | 18.00 |
| 2025-04-10 | 16.45 | 16.38 | 0.44 | 2.76% | 16.22 | 16.84 | 269135 | 44532.51 | 4.21% | 0.00 |
| 2025-04-09 | 14.65 | 15.94 | 1.14 | 7.70% | 13.82 | 16.30 | 407292 | 61952.04 | 6.37% | 58.00 |
| 2025-04-08 | 13.87 | 14.80 | 1.02 | 7.40% | 13.87 | 15.06 | 368286 | 54096.61 | 5.76% | 61.00 |
| 2025-04-07 | 16.00 | 13.78 | -3.45 | -20.02% | 13.78 | 16.35 | 364398 | 53539.95 | 5.70% | 94.00 |
| 2025-04-03 | 16.81 | 17.23 | 0.18 | 1.06% | 16.81 | 17.56 | 154252 | 26559.35 | 2.41% | 6.00 |
| 2025-04-02 | 17.09 | 17.05 | -0.14 | -0.81% | 16.97 | 17.26 | 95636 | 16338.88 | 1.50% | 3.00 |
| 2025-04-01 | 17.08 | 17.19 | 0.12 | 0.70% | 16.85 | 17.47 | 161700 | 27739.98 | 2.53% | 0.00 |
| 2025-03-31 | 17.61 | 17.07 | -0.74 | -4.15% | 16.86 | 17.63 | 197415 | 33740.88 | 3.09% | 9.00 |
| 2025-03-28 | 18.35 | 17.81 | -0.54 | -2.94% | 17.73 | 18.40 | 167988 | 30211.49 | 2.63% | 38.00 |
| 2025-03-27 | 18.00 | 18.35 | 0.72 | 4.08% | 17.82 | 18.65 | 277020 | 51054.50 | 4.33% | 114.00 |
| 2025-03-26 | 17.73 | 17.63 | -0.28 | -1.56% | 17.60 | 17.97 | 141952 | 25206.79 | 2.22% | 25.00 |
| 2025-03-25 | 18.01 | 17.91 | -0.21 | -1.16% | 17.62 | 18.52 | 184605 | 33370.77 | 2.89% | 0.00 |
| 2025-03-24 | 18.68 | 18.12 | -0.78 | -4.13% | 17.88 | 18.79 | 211067 | 38381.51 | 3.30% | 20.00 |
| 2025-03-21 | 18.23 | 18.90 | 0.40 | 2.16% | 17.92 | 19.16 | 311266 | 57876.28 | 4.87% | 0.00 |
| 2025-03-20 | 18.61 | 18.50 | -0.47 | -2.48% | 18.23 | 19.45 | 278143 | 52349.64 | 4.35% | 35.00 |
| 2025-03-19 | 18.88 | 18.97 | 0.03 | 0.16% | 18.61 | 19.30 | 206051 | 39264.23 | 3.22% | 35.00 |
| 2025-03-18 | 19.69 | 18.94 | -0.90 | -4.54% | 18.18 | 19.97 | 468013 | 89124.75 | 7.32% | 56.00 |
| 2025-03-17 | 20.23 | 19.84 | -0.48 | -2.36% | 19.73 | 20.42 | 276573 | 55057.84 | 4.33% | 29.00 |
| 2025-03-14 | 20.10 | 20.32 | 0.17 | 0.84% | 19.68 | 20.40 | 235489 | 47311.14 | 3.68% | 21.00 |
| 2025-03-13 | 20.54 | 20.15 | -0.57 | -2.75% | 19.98 | 20.77 | 306098 | 62069.32 | 4.79% | 0.00 |
| 2025-03-12 | 20.22 | 20.72 | 0.73 | 3.65% | 20.09 | 21.20 | 471948 | 98335.02 | 7.38% | 52.00 |
| 2025-03-11 | 19.80 | 19.99 | -0.51 | -2.49% | 19.68 | 20.30 | 243300 | 48608.96 | 3.81% | 89.00 |
| 2025-03-10 | 21.05 | 20.50 | 0.20 | 0.99% | 20.40 | 21.32 | 284502 | 59204.48 | 4.45% | 100.00 |
| 2025-03-07 | 20.50 | 20.30 | -0.37 | -1.79% | 20.16 | 21.09 | 293418 | 60560.06 | 4.59% | 71.00 |
| 2025-03-06 | 20.26 | 20.67 | 0.53 | 2.63% | 20.16 | 20.85 | 309559 | 63561.80 | 4.84% | 70.00 |
| 2025-03-05 | 20.45 | 20.14 | -0.34 | -1.66% | 19.87 | 20.63 | 235796 | 47521.62 | 3.69% | 12.00 |
| 2025-03-04 | 20.20 | 20.48 | -0.11 | -0.53% | 20.03 | 20.87 | 252149 | 51806.57 | 3.94% | 30.00 |
| 2025-03-03 | 20.17 | 20.59 | 0.42 | 2.08% | 19.71 | 21.29 | 353195 | 72840.53 | 5.53% | 38.00 |
| 2025-02-28 | 21.60 | 20.17 | -1.92 | -8.69% | 20.01 | 21.85 | 456644 | 95432.56 | 7.14% | 34.00 |
| 2025-02-27 | 20.41 | 22.09 | 1.65 | 8.07% | 20.13 | 22.50 | 736291 | 157673.09 | 11.52% | 319.00 |
| 2025-02-26 | 20.26 | 20.44 | 0.01 | 0.05% | 19.88 | 20.63 | 308908 | 62484.79 | 4.83% | 18.00 |
| 2025-02-25 | 19.99 | 20.43 | -0.06 | -0.29% | 19.70 | 21.18 | 374002 | 76949.99 | 5.85% | 24.00 |
| 2025-02-24 | 20.80 | 20.49 | -0.69 | -3.26% | 20.15 | 20.88 | 376389 | 76746.49 | 5.89% | 52.00 |
| 2025-02-21 | 20.83 | 21.18 | 0.31 | 1.49% | 20.18 | 21.36 | 428729 | 89215.98 | 6.71% | 40.00 |
| 2025-02-20 | 20.80 | 20.87 | -0.27 | -1.28% | 20.60 | 21.57 | 317183 | 66650.55 | 4.96% | 48.00 |
| 2025-02-19 | 21.20 | 21.14 | 0.41 | 1.98% | 20.90 | 21.71 | 338722 | 72050.89 | 5.30% | 33.00 |
| 2025-02-18 | 21.98 | 20.73 | -1.59 | -7.12% | 20.64 | 21.98 | 427605 | 90675.34 | 6.69% | 76.00 |
| 2025-02-17 | 23.00 | 22.32 | -0.67 | -2.91% | 21.66 | 23.20 | 639629 | 142374.73 | 10.01% | 59.00 |
| 2025-02-14 | 21.21 | 22.99 | 1.92 | 9.11% | 21.14 | 22.99 | 776041 | 172670.22 | 12.14% | 113.00 |
| 2025-02-13 | 21.01 | 21.07 | 0.03 | 0.14% | 20.55 | 21.90 | 413138 | 87323.65 | 6.46% | 48.00 |
| 2025-02-12 | 20.66 | 21.04 | 0.20 | 0.96% | 20.60 | 21.34 | 335820 | 70707.87 | 5.25% | 13.00 |
| 2025-02-11 | 21.57 | 20.84 | -1.16 | -5.27% | 20.80 | 21.58 | 497927 | 105137.27 | 7.79% | 343.00 |
| 2025-02-10 | 21.20 | 22.00 | 1.28 | 6.18% | 20.77 | 22.15 | 723703 | 155654.55 | 11.32% | 2.00 |
| 2025-02-07 | 19.48 | 20.72 | 1.19 | 6.09% | 19.31 | 21.25 | 658817 | 134056.59 | 10.31% | 21.00 |
| 2025-02-06 | 18.57 | 19.53 | 0.96 | 5.17% | 18.33 | 19.81 | 445071 | 85018.09 | 6.96% | 101.00 |
| 2025-02-05 | 17.90 | 18.57 | 1.07 | 6.11% | 17.90 | 18.76 | 337910 | 62507.63 | 5.29% | 16.00 |
| 2025-01-27 | 19.00 | 17.50 | -1.26 | -6.72% | 17.50 | 19.09 | 259780 | 46842.51 | 4.06% | 16.00 |
| 2025-01-24 | 18.29 | 18.76 | 0.33 | 1.79% | 18.10 | 18.85 | 284664 | 52579.68 | 4.45% | 95.00 |
| 2025-01-23 | 18.15 | 18.43 | 0.56 | 3.13% | 18.15 | 19.19 | 438610 | 81999.36 | 6.86% | 25.00 |
| 2025-01-22 | 18.25 | 17.87 | -0.60 | -3.25% | 17.83 | 18.50 | 205538 | 37173.51 | 3.22% | 14.00 |
| 2025-01-21 | 18.75 | 18.47 | -0.07 | -0.38% | 18.10 | 18.83 | 212454 | 39153.89 | 3.32% | 3.00 |
| 2025-01-20 | 19.10 | 18.54 | -0.36 | -1.90% | 18.45 | 19.14 | 231241 | 43215.01 | 3.62% | 18.00 |
| 2025-01-17 | 18.70 | 18.90 | 0.00 | 0.00% | 18.53 | 19.08 | 230346 | 43455.57 | 3.60% | 2.00 |
| 2025-01-16 | 18.91 | 18.90 | 0.10 | 0.53% | 18.55 | 19.22 | 302007 | 57171.97 | 4.72% | 59.00 |
| 2025-01-15 | 19.30 | 18.80 | -0.59 | -3.04% | 18.59 | 19.45 | 376781 | 71352.89 | 5.89% | 111.00 |
荣科科技(300290)K线图分析： Ｋ线图最早是日本德川幕府时代大阪的米商用来记录当时一天、一周或一月中米价涨跌行情的图示法,后被引入股市。Ｋ线图有直观、立体感强、携带信息量大的特点,蕴涵着丰富的东方哲学思想,能充分显示股价趋势的强弱、买卖双方力量平衡的变化,预测后市走向较准确,是各类传播媒介、电脑实时分析系统应用较多的技术分析手段。其记录方法如下：（如图所示）
1、日K线是根据股价(指数)一天的走势中形成的四个价位即：开盘价,收盘价,最高价,最低价绘制而成的。 收盘价高于开盘价时,则开盘价在下收盘价在上,二者之间的长方柱用红色或空心绘出,称之为阳线；其上影线的最高点为最高价,下影线的最低点为最低价。 收盘价低于开盘价时,则开盘价在上收盘价在下,二者之间的长方柱用黑色或实心绘出,称之为阴线,其上影线的最高点为最高价,下影线的最低点为最低价。
2、根据K线的计算周期可将其分为日K线,周K线,月K线,年K线。 周K线是指以周一的开盘价,周五的收盘价,全周最高价和全周最低价来画的K线图。月K线则以一个月的第一个交易日的开盘价,最后一个交易日的收盘价和全月最高价与全月最低价来画的K线图,同理可以推得年K线定义。周K线,月K线常用于研判中期行情。对于短线操作者来说,众多分析软件提供的5分钟K线、15分钟K线、30分钟K线和60分钟K线也具有重要的参考价值。
3、根据开盘价与收盘价的波动范围,可将Ｋ线分为极阴、极阳,小阴、小阳,中阴中阳和大阴、大阳等线型。它们一般的波动范围（如图所示）。
极阴线和极阳线的波动范围在0.5%左右； 小阴线和小阳线的波动范围一般在0.6--1.5%； 中阴线和中阳线的波动范围一般在1.6-3.5%； 大阴线和大阳线的波动范围在3.6%以上。
