| 日期 | 开盘 | 收盘 | 涨跌 | 涨幅 | 最低 | 最高 | 成交量 | 成交额 | 换手 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-08-05 | 25.80 | 25.52 | -0.36 | -1.39% | 25.28 | 25.84 | 147333 | 37502.36 | 5.30% | 0.00 |
| 2025-08-04 | 25.50 | 25.88 | 0.32 | 1.25% | 25.25 | 26.13 | 183272 | 46940.11 | 6.60% | 0.00 |
| 2025-08-01 | 25.04 | 25.56 | 0.62 | 2.49% | 24.80 | 25.69 | 209542 | 53110.36 | 7.54% | 1.00 |
| 2025-07-31 | 24.54 | 24.94 | 0.40 | 1.63% | 24.42 | 25.40 | 201009 | 50308.40 | 7.24% | 3.00 |
| 2025-07-30 | 24.90 | 24.54 | -0.51 | -2.04% | 24.23 | 24.96 | 116789 | 28746.55 | 4.20% | 0.00 |
| 2025-07-29 | 24.59 | 25.05 | 0.35 | 1.42% | 24.40 | 25.13 | 155954 | 38782.66 | 5.61% | 1.00 |
| 2025-07-28 | 24.85 | 24.70 | 0.07 | 0.28% | 24.51 | 24.87 | 93559 | 23082.39 | 3.37% | 0.00 |
| 2025-07-25 | 24.28 | 24.63 | 0.50 | 2.07% | 24.17 | 24.95 | 147936 | 36346.11 | 5.33% | 0.00 |
| 2025-07-24 | 23.90 | 24.13 | 0.17 | 0.71% | 23.80 | 24.15 | 61332 | 14746.94 | 2.21% | 0.00 |
| 2025-07-23 | 24.00 | 23.96 | -0.04 | -0.17% | 23.76 | 24.28 | 74067 | 17786.34 | 2.67% | 0.00 |
| 2025-07-22 | 24.39 | 24.00 | -0.48 | -1.96% | 23.88 | 24.40 | 105229 | 25366.63 | 3.79% | 0.00 |
| 2025-07-21 | 24.65 | 24.48 | -0.13 | -0.53% | 24.34 | 24.71 | 92507 | 22669.19 | 3.33% | 0.00 |
| 2025-07-18 | 24.60 | 24.61 | -0.21 | -0.85% | 24.50 | 24.91 | 103541 | 25540.23 | 3.73% | 0.00 |
| 2025-07-17 | 24.32 | 24.82 | 0.52 | 2.14% | 24.32 | 25.09 | 146423 | 36232.34 | 5.27% | 25.00 |
| 2025-07-16 | 24.27 | 24.30 | 0.02 | 0.08% | 24.14 | 24.60 | 82759 | 20167.21 | 2.98% | 0.00 |
| 2025-07-15 | 24.24 | 24.28 | 0.04 | 0.17% | 23.80 | 24.37 | 81912 | 19743.53 | 2.95% | 11.00 |
| 2025-07-14 | 24.45 | 24.24 | -0.04 | -0.16% | 24.06 | 24.50 | 74267 | 18001.31 | 2.67% | 0.00 |
| 2025-07-11 | 24.13 | 24.28 | 0.19 | 0.79% | 23.81 | 24.41 | 98789 | 23886.04 | 3.56% | 0.00 |
| 2025-07-10 | 23.75 | 24.09 | 0.30 | 1.26% | 23.48 | 24.20 | 90627 | 21626.36 | 3.26% | 0.00 |
| 2025-07-09 | 24.06 | 23.79 | -0.39 | -1.61% | 23.76 | 24.20 | 71458 | 17117.63 | 2.57% | 0.00 |
| 2025-07-08 | 23.64 | 24.18 | 0.58 | 2.46% | 23.50 | 24.21 | 89194 | 21384.32 | 3.21% | 3.00 |
| 2025-07-07 | 23.59 | 23.60 | -0.02 | -0.08% | 23.49 | 23.74 | 49771 | 11748.67 | 1.79% | 0.00 |
| 2025-07-04 | 23.99 | 23.62 | -0.37 | -1.54% | 23.55 | 24.18 | 68951 | 16390.09 | 2.48% | 0.00 |
| 2025-07-03 | 24.00 | 23.99 | 0.09 | 0.38% | 23.88 | 24.25 | 60782 | 14605.86 | 2.19% | 0.00 |
| 2025-07-02 | 24.50 | 23.90 | -0.64 | -2.61% | 23.70 | 24.50 | 93230 | 22384.00 | 3.36% | 0.00 |
| 2025-07-01 | 24.70 | 24.54 | -0.26 | -1.05% | 24.12 | 24.80 | 97504 | 23856.59 | 3.51% | 0.00 |
| 2025-06-30 | 24.50 | 24.80 | 0.33 | 1.35% | 24.45 | 24.86 | 97124 | 24008.70 | 3.50% | 0.00 |
| 2025-06-27 | 24.68 | 24.47 | -0.06 | -0.24% | 24.43 | 25.13 | 117758 | 29125.60 | 4.24% | 0.00 |
| 2025-06-26 | 24.51 | 24.53 | 0.03 | 0.12% | 24.37 | 24.97 | 149660 | 36894.55 | 5.39% | 0.00 |
| 2025-06-25 | 24.12 | 24.50 | 0.32 | 1.32% | 24.00 | 24.56 | 126606 | 30773.61 | 4.56% | 0.00 |
| 2025-06-24 | 23.41 | 24.18 | 0.86 | 3.69% | 23.34 | 24.28 | 136611 | 32778.86 | 4.92% | 50.00 |
| 2025-06-23 | 22.45 | 23.32 | 0.62 | 2.73% | 22.34 | 23.33 | 86862 | 19984.51 | 3.13% | 0.00 |
| 2025-06-20 | 23.06 | 22.70 | -0.46 | -1.99% | 22.53 | 23.16 | 92867 | 21168.92 | 3.34% | 0.00 |
| 2025-06-19 | 24.23 | 23.16 | -1.19 | -4.89% | 23.14 | 24.30 | 163181 | 38478.52 | 5.87% | 0.00 |
| 2025-06-18 | 24.21 | 24.35 | -0.15 | -0.61% | 24.10 | 24.80 | 128517 | 31314.89 | 4.63% | 0.00 |
| 2025-06-17 | 24.58 | 24.50 | 0.25 | 1.03% | 24.41 | 24.98 | 154972 | 38262.80 | 5.58% | 3.00 |
| 2025-06-16 | 23.86 | 24.25 | 0.15 | 0.62% | 23.85 | 24.73 | 132654 | 32224.55 | 4.77% | 0.00 |
| 2025-06-13 | 24.84 | 24.10 | -1.44 | -5.64% | 24.06 | 25.12 | 285273 | 69602.26 | 10.27% | 0.00 |
| 2025-06-12 | 25.01 | 25.54 | 1.54 | 6.42% | 25.01 | 26.40 | 429244 | 110276.27 | 15.45% | 8.00 |
| 2025-06-11 | 24.00 | 24.00 | -0.06 | -0.25% | 23.90 | 24.22 | 73693 | 17728.04 | 2.65% | 8.00 |
| 2025-06-10 | 24.60 | 24.06 | -0.62 | -2.51% | 23.45 | 24.60 | 161237 | 38699.09 | 5.80% | 0.00 |
| 2025-06-09 | 24.50 | 24.68 | 0.02 | 0.08% | 24.38 | 24.87 | 117882 | 29050.34 | 4.24% | 0.00 |
| 2025-06-06 | 25.40 | 24.66 | -0.82 | -3.22% | 24.55 | 25.63 | 167833 | 41964.52 | 6.04% | 0.00 |
| 2025-06-05 | 24.89 | 25.48 | 0.48 | 1.92% | 24.71 | 25.49 | 186243 | 47024.11 | 6.70% | 50.00 |
| 2025-06-04 | 25.20 | 25.00 | -0.25 | -0.99% | 24.65 | 25.29 | 174394 | 43360.10 | 6.28% | 0.00 |
| 2025-06-03 | 24.34 | 25.25 | 0.69 | 2.81% | 24.19 | 25.64 | 232306 | 58273.00 | 8.36% | 20.00 |
| 2025-05-30 | 23.78 | 24.56 | 0.74 | 3.11% | 23.68 | 24.86 | 260346 | 63652.75 | 9.37% | 10.00 |
| 2025-05-29 | 23.51 | 23.82 | 0.25 | 1.06% | 23.51 | 24.08 | 162851 | 38832.82 | 5.86% | 3.00 |
| 2025-05-28 | 23.81 | 23.57 | -0.39 | -1.63% | 23.45 | 23.96 | 153242 | 36214.31 | 5.52% | 74.00 |
| 2025-05-27 | 22.73 | 23.96 | 1.14 | 5.00% | 22.57 | 24.18 | 293505 | 69165.26 | 10.56% | 12.00 |
| 2025-05-26 | 23.01 | 22.82 | -0.50 | -2.14% | 22.50 | 23.18 | 218668 | 49660.15 | 7.87% | 0.00 |
| 2025-05-23 | 23.46 | 23.32 | 1.06 | 4.76% | 23.07 | 24.65 | 406597 | 97079.80 | 14.63% | 4.00 |
| 2025-05-22 | 22.44 | 22.26 | -0.34 | -1.50% | 22.25 | 22.79 | 60677 | 13626.96 | 2.19% | 0.00 |
| 2025-05-21 | 22.80 | 22.60 | -0.28 | -1.22% | 22.50 | 22.94 | 65851 | 14951.88 | 2.37% | 0.00 |
| 2025-05-20 | 23.10 | 22.88 | -0.03 | -0.13% | 22.51 | 23.10 | 98541 | 22400.29 | 3.55% | 0.00 |
| 2025-05-19 | 22.27 | 22.91 | 0.67 | 3.01% | 22.21 | 23.15 | 145374 | 33124.59 | 5.24% | 4.00 |
| 2025-05-16 | 22.11 | 22.24 | 0.03 | 0.14% | 22.00 | 22.50 | 52987 | 11810.03 | 1.91% | 0.00 |
| 2025-05-15 | 22.71 | 22.21 | -0.61 | -2.67% | 22.15 | 22.78 | 77700 | 17393.72 | 2.80% | 0.00 |
| 2025-05-14 | 22.89 | 22.82 | -0.05 | -0.22% | 22.57 | 23.06 | 83772 | 19083.60 | 3.02% | 0.00 |
| 2025-05-13 | 23.19 | 22.87 | -0.04 | -0.17% | 22.75 | 23.41 | 103322 | 23778.22 | 3.73% | 0.00 |
| 2025-05-12 | 22.53 | 22.91 | 0.49 | 2.19% | 22.50 | 23.07 | 113221 | 25808.21 | 4.08% | 0.00 |
| 2025-05-09 | 23.48 | 22.42 | -0.36 | -1.58% | 22.22 | 23.69 | 158624 | 36054.52 | 5.72% | 0.00 |
| 2025-05-08 | 22.20 | 22.78 | 0.52 | 2.34% | 22.16 | 22.98 | 121411 | 27484.20 | 4.38% | 3.00 |
| 2025-05-07 | 22.67 | 22.26 | -0.05 | -0.22% | 22.01 | 22.78 | 118046 | 26422.82 | 4.26% | 0.00 |
| 2025-05-06 | 21.47 | 22.31 | 1.03 | 4.84% | 21.45 | 22.39 | 114952 | 25328.46 | 4.14% | 0.00 |
| 2025-04-30 | 20.92 | 21.28 | 0.60 | 2.90% | 20.80 | 21.45 | 83984 | 17829.64 | 3.03% | 0.00 |
| 2025-04-29 | 20.20 | 20.68 | -0.18 | -0.86% | 19.94 | 20.82 | 85361 | 17515.31 | 3.08% | 0.00 |
| 2025-04-28 | 21.00 | 20.86 | -0.20 | -0.95% | 20.79 | 21.35 | 59631 | 12514.86 | 2.15% | 0.00 |
| 2025-04-25 | 21.04 | 21.06 | 0.05 | 0.24% | 20.85 | 21.39 | 75244 | 15865.74 | 2.71% | 0.00 |
| 2025-04-24 | 21.79 | 21.01 | -0.77 | -3.54% | 20.84 | 21.84 | 89736 | 19032.68 | 3.24% | 1.00 |
| 2025-04-23 | 21.51 | 21.78 | 0.32 | 1.49% | 21.51 | 21.98 | 101357 | 22020.23 | 3.65% | 0.00 |
| 2025-04-22 | 21.40 | 21.46 | -0.59 | -2.68% | 21.11 | 21.70 | 99199 | 21308.83 | 3.58% | 19.00 |
| 2025-04-21 | 21.39 | 22.05 | 0.55 | 2.56% | 21.35 | 22.10 | 77456 | 16902.69 | 2.79% | 0.00 |
| 2025-04-18 | 21.40 | 21.50 | 0.00 | 0.00% | 21.29 | 21.69 | 60733 | 13050.90 | 2.19% | 0.00 |
| 2025-04-17 | 21.46 | 21.50 | -0.16 | -0.74% | 21.40 | 21.97 | 80948 | 17578.62 | 2.92% | 0.00 |
| 2025-04-16 | 21.80 | 21.66 | -0.35 | -1.59% | 21.08 | 21.97 | 94184 | 20301.04 | 3.40% | 0.00 |
| 2025-04-15 | 22.10 | 22.01 | -0.10 | -0.45% | 21.74 | 22.19 | 71427 | 15681.18 | 2.58% | 0.00 |
| 2025-04-14 | 22.30 | 22.11 | 0.17 | 0.77% | 21.94 | 22.64 | 112352 | 25026.04 | 4.05% | 12.00 |
| 2025-04-11 | 21.46 | 21.94 | 0.20 | 0.92% | 21.36 | 22.27 | 109407 | 23955.85 | 3.94% | 0.00 |
| 2025-04-10 | 21.87 | 21.74 | 0.65 | 3.08% | 21.61 | 22.28 | 154489 | 33840.68 | 5.57% | 0.00 |
科大国创(300520)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。
