| 日期 | 开盘 | 收盘 | 涨跌 | 涨幅 | 最低 | 最高 | 成交量 | 成交额 | 换手 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-18 | 45.12 | 42.88 | -2.42 | -5.34% | 42.60 | 46.22 | 30180 | 13350.64 | 3.40% | 0.00 |
| 2025-12-17 | 43.30 | 45.30 | 2.11 | 4.89% | 42.50 | 45.60 | 31830 | 14038.22 | 3.59% | 0.00 |
| 2025-12-16 | 42.90 | 43.19 | 1.22 | 2.91% | 40.85 | 44.20 | 30597 | 13015.04 | 3.45% | 0.00 |
| 2025-12-15 | 44.12 | 41.97 | -2.17 | -4.92% | 40.62 | 44.12 | 32024 | 13432.61 | 3.61% | 0.00 |
| 2025-12-12 | 43.02 | 44.14 | -0.48 | -1.08% | 42.80 | 44.31 | 29872 | 13028.22 | 3.37% | 0.00 |
| 2025-12-11 | 46.80 | 44.62 | -2.38 | -5.06% | 44.27 | 47.35 | 46273 | 21187.68 | 5.22% | 6.00 |
| 2025-12-10 | 47.46 | 47.00 | -0.57 | -1.20% | 46.70 | 47.76 | 11366 | 5339.33 | 1.28% | 0.00 |
| 2025-12-09 | 47.33 | 47.57 | 0.23 | 0.49% | 46.66 | 48.50 | 15398 | 7313.90 | 1.74% | 0.00 |
| 2025-12-08 | 47.28 | 47.34 | 0.06 | 0.13% | 46.89 | 48.40 | 16088 | 7648.81 | 1.81% | 0.00 |
| 2025-12-05 | 46.62 | 47.28 | 0.70 | 1.50% | 46.25 | 47.64 | 11862 | 5591.29 | 1.34% | 0.00 |
| 2025-12-04 | 47.50 | 46.58 | -0.92 | -1.94% | 46.17 | 48.15 | 11052 | 5164.91 | 1.25% | 0.00 |
| 2025-12-03 | 47.25 | 47.50 | 0.25 | 0.53% | 46.85 | 48.48 | 14840 | 7050.22 | 1.67% | 0.00 |
| 2025-12-02 | 48.90 | 47.25 | -1.64 | -3.35% | 47.01 | 48.90 | 17374 | 8301.88 | 1.96% | 0.00 |
| 2025-12-01 | 50.73 | 48.89 | -1.76 | -3.47% | 48.80 | 51.05 | 24387 | 12084.53 | 2.75% | 0.00 |
| 2025-11-28 | 47.78 | 50.65 | 2.87 | 6.01% | 47.34 | 51.00 | 32773 | 16243.64 | 3.69% | 0.00 |
| 2025-11-27 | 45.95 | 47.78 | 1.95 | 4.25% | 45.86 | 48.49 | 27025 | 12850.33 | 3.05% | 0.00 |
| 2025-11-26 | 46.93 | 45.83 | -1.05 | -2.24% | 45.82 | 46.93 | 15930 | 7361.58 | 1.80% | 0.00 |
| 2025-11-25 | 45.31 | 46.88 | 1.73 | 3.83% | 45.31 | 47.86 | 20028 | 9405.46 | 2.26% | 0.00 |
| 2025-11-24 | 46.72 | 45.15 | -0.70 | -1.53% | 42.50 | 46.72 | 23310 | 10373.15 | 2.63% | 0.00 |
| 2025-11-21 | 47.75 | 45.85 | -1.93 | -4.04% | 45.55 | 48.00 | 15872 | 7405.55 | 1.79% | 0.00 |
| 2025-11-20 | 47.01 | 47.78 | 1.01 | 2.16% | 45.97 | 48.00 | 14573 | 6886.16 | 1.64% | 0.00 |
| 2025-11-19 | 46.60 | 46.77 | 0.17 | 0.36% | 45.02 | 47.28 | 14990 | 6900.11 | 1.69% | 0.00 |
| 2025-11-18 | 48.40 | 46.60 | -2.28 | -4.66% | 46.50 | 48.80 | 23798 | 11255.31 | 2.68% | 0.00 |
| 2025-11-17 | 46.98 | 48.88 | 1.88 | 4.00% | 46.47 | 48.99 | 25920 | 12472.18 | 2.92% | 0.00 |
| 2025-11-14 | 47.08 | 47.00 | -0.12 | -0.25% | 46.71 | 48.60 | 16546 | 7875.44 | 1.87% | 0.00 |
| 2025-11-13 | 47.14 | 47.12 | 0.00 | 0.00% | 46.52 | 47.37 | 9648 | 4535.80 | 1.09% | 0.00 |
| 2025-11-12 | 46.99 | 47.12 | 0.12 | 0.26% | 46.28 | 47.86 | 16102 | 7583.52 | 1.82% | 0.00 |
| 2025-11-11 | 46.24 | 47.00 | 0.87 | 1.89% | 46.00 | 47.93 | 17602 | 8312.91 | 1.98% | 0.00 |
| 2025-11-10 | 47.00 | 46.13 | -0.87 | -1.85% | 46.01 | 47.36 | 15401 | 7149.01 | 1.74% | 0.00 |
| 2025-11-07 | 47.50 | 47.00 | -0.72 | -1.51% | 46.52 | 48.86 | 20459 | 9755.71 | 2.31% | 0.00 |
| 2025-11-06 | 47.30 | 47.72 | 0.32 | 0.68% | 46.55 | 47.80 | 16423 | 7726.29 | 1.85% | 0.00 |
| 2025-11-05 | 46.90 | 47.40 | 0.01 | 0.02% | 46.45 | 48.77 | 19875 | 9441.83 | 2.24% | 0.00 |
| 2025-11-04 | 46.18 | 47.39 | 1.37 | 2.98% | 45.66 | 47.65 | 19514 | 9150.52 | 2.20% | 0.00 |
| 2025-11-03 | 46.29 | 46.02 | -0.27 | -0.58% | 45.19 | 47.19 | 18939 | 8689.79 | 2.14% | 0.00 |
| 2025-10-31 | 47.04 | 46.29 | -0.82 | -1.74% | 45.90 | 47.85 | 20338 | 9444.36 | 2.29% | 0.00 |
| 2025-10-30 | 47.49 | 47.11 | -0.37 | -0.78% | 46.53 | 48.80 | 26075 | 12417.16 | 2.94% | 0.00 |
| 2025-10-29 | 46.46 | 47.48 | 1.02 | 2.20% | 45.80 | 47.64 | 21220 | 9972.12 | 2.39% | 0.00 |
| 2025-10-28 | 46.60 | 46.46 | -0.29 | -0.62% | 45.60 | 46.76 | 19673 | 9071.25 | 2.22% | 0.00 |
| 2025-10-27 | 43.99 | 46.75 | 3.28 | 7.55% | 43.89 | 46.96 | 39645 | 18198.16 | 4.47% | 0.00 |
| 2025-10-24 | 42.54 | 43.47 | 0.77 | 1.80% | 42.48 | 45.39 | 25680 | 11379.65 | 2.90% | 0.00 |
| 2025-10-23 | 42.50 | 42.70 | 0.07 | 0.16% | 42.02 | 43.43 | 16730 | 7145.99 | 1.89% | 0.00 |
| 2025-10-22 | 44.15 | 42.63 | -1.72 | -3.88% | 41.70 | 44.76 | 27370 | 11833.94 | 3.09% | 0.00 |
| 2025-10-21 | 41.73 | 44.35 | 2.64 | 6.33% | 41.23 | 44.46 | 30439 | 13157.06 | 3.43% | 0.00 |
| 2025-10-20 | 41.43 | 41.71 | 1.12 | 2.76% | 40.61 | 42.10 | 17321 | 7181.95 | 1.95% | 0.00 |
| 2025-10-17 | 41.12 | 40.59 | -0.53 | -1.29% | 39.91 | 41.38 | 14354 | 5812.98 | 1.62% | 0.00 |
| 2025-10-16 | 41.42 | 41.12 | -0.35 | -0.84% | 40.65 | 42.47 | 17239 | 7168.39 | 1.94% | 0.00 |
| 2025-10-15 | 41.00 | 41.47 | 0.87 | 2.14% | 40.10 | 41.59 | 15799 | 6472.94 | 1.78% | 0.00 |
| 2025-10-14 | 42.87 | 40.60 | -1.27 | -3.03% | 40.33 | 43.08 | 28405 | 11873.71 | 3.20% | 0.00 |
| 2025-10-13 | 38.55 | 41.87 | 2.26 | 5.71% | 38.25 | 43.65 | 46621 | 19204.32 | 5.26% | 0.00 |
| 2025-10-10 | 38.66 | 39.61 | 1.03 | 2.67% | 38.33 | 39.88 | 22829 | 8994.10 | 2.57% | 0.00 |
| 2025-10-09 | 41.11 | 38.58 | -2.53 | -6.15% | 37.97 | 41.31 | 43239 | 16961.51 | 4.87% | 0.00 |
| 2025-09-30 | 39.29 | 41.11 | 2.02 | 5.17% | 39.10 | 41.60 | 33873 | 13777.71 | 3.82% | 0.00 |
| 2025-09-29 | 38.80 | 39.09 | -0.01 | -0.03% | 38.23 | 39.33 | 21138 | 8206.01 | 2.38% | 0.00 |
| 2025-09-26 | 39.77 | 39.10 | -0.28 | -0.71% | 38.20 | 39.77 | 22609 | 8805.60 | 2.55% | 0.00 |
| 2025-09-25 | 39.89 | 39.38 | -0.01 | -0.03% | 39.01 | 42.49 | 31819 | 12828.28 | 3.59% | 0.00 |
| 2025-09-24 | 40.49 | 39.39 | -1.13 | -2.79% | 39.12 | 40.81 | 20012 | 7938.64 | 2.26% | 0.00 |
| 2025-09-23 | 41.05 | 40.52 | -0.51 | -1.24% | 39.39 | 41.59 | 23697 | 9521.66 | 2.67% | 0.00 |
| 2025-09-22 | 39.81 | 41.03 | 2.28 | 5.88% | 38.80 | 41.39 | 32141 | 12980.98 | 3.62% | 0.00 |
| 2025-09-19 | 38.60 | 38.75 | 0.33 | 0.86% | 38.45 | 39.89 | 17811 | 6958.80 | 2.01% | 0.00 |
| 2025-09-18 | 38.59 | 38.42 | -0.36 | -0.93% | 37.81 | 39.37 | 18267 | 7043.64 | 2.06% | 0.00 |
| 2025-09-17 | 39.30 | 38.78 | -0.52 | -1.32% | 38.41 | 39.73 | 18905 | 7366.85 | 2.13% | 0.00 |
| 2025-09-16 | 41.00 | 39.30 | -1.30 | -3.20% | 39.08 | 41.00 | 23933 | 9520.17 | 2.70% | 0.00 |
| 2025-09-15 | 39.28 | 40.60 | 1.32 | 3.36% | 39.24 | 41.60 | 30103 | 12195.59 | 3.39% | 0.00 |
| 2025-09-12 | 39.12 | 39.28 | 0.23 | 0.59% | 39.10 | 40.08 | 21596 | 8549.05 | 2.43% | 0.00 |
| 2025-09-11 | 39.65 | 39.05 | -0.95 | -2.38% | 38.30 | 39.89 | 21980 | 8629.14 | 2.48% | 0.00 |
| 2025-09-10 | 39.74 | 40.00 | 0.19 | 0.48% | 39.12 | 40.46 | 28772 | 11480.87 | 3.24% | 0.00 |
| 2025-09-09 | 39.39 | 39.81 | 0.26 | 0.66% | 38.52 | 40.05 | 32147 | 12583.86 | 3.62% | 0.00 |
| 2025-09-08 | 38.48 | 39.55 | 1.03 | 2.67% | 37.77 | 40.42 | 37191 | 14685.79 | 4.19% | 0.00 |
| 2025-09-05 | 37.43 | 38.52 | 1.26 | 3.38% | 36.60 | 38.68 | 29477 | 11150.93 | 3.32% | 12.00 |
| 2025-09-04 | 37.00 | 37.26 | 0.27 | 0.73% | 36.60 | 38.97 | 43007 | 16208.12 | 4.85% | 0.00 |
| 2025-09-03 | 37.48 | 36.99 | -0.48 | -1.28% | 36.01 | 38.26 | 34789 | 12876.27 | 3.92% | 1.00 |
| 2025-09-02 | 37.49 | 37.47 | 0.91 | 2.49% | 37.01 | 39.30 | 55116 | 21061.91 | 6.21% | 0.00 |
| 2025-09-01 | 33.66 | 36.56 | 2.96 | 8.81% | 33.61 | 37.99 | 56692 | 20447.96 | 6.39% | 0.00 |
| 2025-08-29 | 33.44 | 33.60 | 0.16 | 0.48% | 32.95 | 34.00 | 17573 | 5896.16 | 1.98% | 0.00 |
| 2025-08-28 | 33.00 | 33.44 | 0.44 | 1.33% | 31.73 | 33.53 | 23608 | 7744.82 | 2.66% | 0.00 |
| 2025-08-27 | 34.44 | 33.00 | -1.51 | -4.38% | 32.92 | 35.15 | 34619 | 11828.87 | 3.90% | 0.00 |
| 2025-08-26 | 34.68 | 34.51 | -0.44 | -1.26% | 34.01 | 35.47 | 37676 | 12989.26 | 4.25% | 0.00 |
| 2025-08-25 | 34.01 | 34.95 | 1.19 | 3.52% | 33.52 | 35.00 | 32750 | 11346.42 | 3.69% | 0.00 |
| 2025-08-22 | 33.99 | 33.76 | -0.23 | -0.68% | 33.03 | 34.67 | 37993 | 12808.25 | 4.29% | 0.00 |
| 2025-08-21 | 34.20 | 33.99 | -0.35 | -1.02% | 33.33 | 35.75 | 67532 | 23138.75 | 7.62% | 0.00 |
同大股份(300321)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。
