它的含義是零股成交價普遍低於集中市場收盤價，也就是在零股市場買進普遍比用集中市場收盤價要便宜。
當我們在收盤前想買一張2330台積電時，另一個選擇是稍後在零股市場用高於集中市場收盤價直接買進，甚至用漲停價去搶。會不會買到漲停價? 我們可以從成交量、最後揭示賣盤量、最後揭示賣盤價來觀察。例如3/23成交量22666股，而159元有57408股掛賣，是成交量的兩倍多。一個人掛兩筆500股的漲停價買單，是不會造成買到漲停價的。
| 依依零股資訊：2330 台積電 | |||||||||
| 日期 | 成交量(股) | 成交筆數 | 成交價(A) | 集中市場收盤價(B) | 價差(A-B) | 最後揭示買盤量 | 最後揭示買盤價 | 最後揭示賣盤量 | 最後揭示賣盤價 |
| 2016/03/23 | 22666 | 183 | 158.50 | 159.50 | -1.00(-0.63%) | 355,980 | 158.50 | 57,408 | 159.00 |
| 2016/03/22 | 29449 | 263 | 158.00 | 158.50 | -0.50(-0.32%) | 487,772 | 158.00 | 29,268 | 158.50 |
| 2016/03/21 | 37094 | 280 | 159.00 | 160.00 | -1.00(-0.62%) | 309,261 | 159.00 | 64,249 | 159.50 |
| 2016/03/18 | 63711 | 444 | 159.00 | 159.50 | -0.50(-0.31%) | 295,054 | 158.50 | 82,137 | 159.00 |
| 2016/03/17 | 41954 | 304 | 157.50 | 158.50 | -1.00(-0.63%) | 285,750 | 157.50 | 92,850 | 158.00 |
| 2016/03/16 | 32817 | 241 | 155.50 | 156.00 | -0.50(-0.32%) | 290,194 | 155.00 | 38,690 | 155.50 |
| 2016/03/15 | 27607 | 337 | 154.00 | 154.50 | -0.50(-0.32%) | 63,904 | 153.50 | 28,067 | 154.00 |
| 2016/03/14 | 44563 | 332 | 155.50 | 156.00 | -0.50(-0.32%) | 54,565 | 155.50 | 64,109 | 156.00 |
| 2016/03/11 | 47178 | 305 | 154.50 | 155.00 | -0.50(-0.32%) | 376,777 | 154.00 | 58,529 | 154.50 |
| 2016/03/10 | 29947 | 225 | 153.50 | 154.50 | -1.00(-0.65%) | 287,797 | 153.50 | 48,193 | 154.00 |
| 2016/03/09 | 26641 | 185 | 152.00 | 153.00 | -1.00(-0.65%) | 278,335 | 152.00 | 25,940 | 152.50 |
| 2016/03/08 | 16284 | 203 | 151.00 | 152.00 | -1.00(-0.66%) | 394,319 | 151.00 | 28,535 | 151.50 |
| 2016/03/07 | 17580 | 265 | 152.00 | 152.00 | +0.00(+0.00%) | 217,759 | 151.50 | 28,971 | 152.00 |
| 2016/03/04 | 26356 | 275 | 152.50 | 152.50 | +0.00(+0.00%) | 216,823 | 152.00 | 24,679 | 152.50 |
| 2016/03/03 | 32121 | 247 | 153.00 | 154.00 | -1.00(-0.65%) | 300,232 | 153.00 | 69,633 | 153.50 |
| 2016/03/02 | 38650 | 294 | 152.50 | 153.00 | -0.50(-0.33%) | 165,104 | 152.50 | 75,774 | 153.00 |
| 2016/03/01 | 26047 | 257 | 151.50 | 152.00 | -0.50(-0.33%) | 266,509 | 151.00 | 54,205 | 151.50 |
| 2016/02/26 | 15984 | 172 | 149.00 | 149.00 | +0.00(+0.00%) | 34,322 | 149.00 | 11,076 | 149.50 |
| 2016/02/25 | 30069 | 292 | 150.00 | 150.50 | -0.50(-0.33%) | 387,787 | 150.00 | 29,329 | 150.50 |
| 2016/02/24 | 23824 | 276 | 148.00 | 148.00 | +0.00(+0.00%) | 267,374 | 147.50 | 12,297 | 148.00 |
| 2016/02/23 | 22491 | 241 | 149.50 | 149.50 | +0.00(+0.00%) | 19,281 | 149.50 | 14,286 | 150.00 |
| 2016/02/22 | 30439 | 269 | 150.50 | 151.00 | -0.50(-0.33%) | 301,068 | 150.00 | 37,703 | 150.50 |
| 2016/02/19 | 39703 | 288 | 150.00 | 151.00 | -1.00(-0.66%) | 232,006 | 150.00 | 50,693 | 150.50 |
| 2016/02/18 | 64408 | 440 | 150.00 | 151.00 | -1.00(-0.66%) | 105,326 | 150.00 | 76,628 | 150.50 |
| 2016/02/17 | 24773 | 212 | 147.50 | 148.00 | -0.50(-0.34%) | 283,918 | 147.00 | 47,687 | 147.50 |
| 2016/02/16 | 43967 | 345 | 147.00 | 147.50 | -0.50(-0.34%) | 122,472 | 147.00 | 39,548 | 147.50 |
| 2016/02/15 | 32578 | 364 | 145.00 | 145.00 | +0.00(+0.00%) | 38,043 | 144.50 | 26,087 | 145.00 |
| 2016/02/03 | 39894 | 312 | 145.00 | 146.00 | -1.00(-0.68%) | 51,747 | 145.00 | 63,486 | 145.50 |
| 2016/02/02 | 13755 | 159 | 142.00 | 142.50 | -0.50(-0.35%) | 9,021 | 142.00 | 22,607 | 142.50 |
| 2016/02/01 | 44461 | 281 | 144.00 | 144.00 | +0.00(+0.00%) | 277,564 | 143.50 | 129,416 | 144.00 |
| 本資訊是整理台灣證券交易所公告所產生，僅供參考。所有資訊以台灣證券交易所公告為準。 | |||||||||
反之，如果「價差(A-B)」多半是紅色，那就是在零股市場賣出普遍比在集中市場用收盤價賣出要划算。如果十分希望成交，可觀察成交量、最後揭示買盤量、最後揭示買價，來判斷掛跌停價搶賣是否會有賣很低的風險。玉山金即為一例：
| 依依零股資訊：2884 玉山金 | |||||||||
| 日期 | 成交量(股) | 成交筆數 | 成交價(A) | 集中市場收盤價(B) | 價差(A-B) | 最後揭示買盤量 | 最後揭示買盤價 | 最後揭示賣盤量 | 最後揭示賣盤價 |
| 2016/03/23 | 11194 | 103 | 18.20 | 18.10 | +0.10(+0.55%) | 140,460 | 18.15 | 1,479 | 18.20 |
| 2016/03/22 | 8851 | 81 | 18.20 | 18.10 | +0.10(+0.55%) | 135,279 | 18.15 | 2,472 | 18.20 |
| 2016/03/21 | 13419 | 116 | 18.30 | 18.15 | +0.15(+0.83%) | 146,051 | 18.30 | 1,358 | 18.40 |
| 2016/03/18 | 8978 | 106 | 18.40 | 18.30 | +0.10(+0.55%) | 124,618 | 18.40 | 2,610 | 18.45 |
| 2016/03/17 | 11269 | 136 | 18.45 | 18.50 | -0.05(-0.27%) | 150,499 | 18.40 | 13,631 | 18.45 |
| 2016/03/16 | 8213 | 112 | 18.25 | 18.30 | -0.05(-0.27%) | 138,169 | 18.25 | 3,679 | 18.30 |
| 2016/03/15 | 6568 | 99 | 18.15 | 18.15 | +0.00(+0.00%) | 113,934 | 18.15 | 4,423 | 18.20 |
| 2016/03/14 | 9671 | 119 | 18.30 | 18.30 | +0.00(+0.00%) | 147,073 | 18.25 | 6,960 | 18.30 |
| 2016/03/11 | 11342 | 136 | 18.25 | 18.20 | +0.05(+0.27%) | 136,765 | 18.25 | 2,205 | 18.35 |
| 2016/03/10 | 12659 | 113 | 18.10 | 18.10 | +0.00(+0.00%) | 110,757 | 18.05 | 1,236 | 18.10 |
| 2016/03/09 | 7835 | 87 | 18.15 | 18.15 | +0.00(+0.00%) | 162,765 | 18.15 | 1,347 | 18.35 |
| 2016/03/08 | 14149 | 113 | 18.10 | 18.10 | +0.00(+0.00%) | 113,263 | 18.10 | 1,925 | 18.15 |
| 2016/03/07 | 15302 | 134 | 18.25 | 18.25 | +0.00(+0.00%) | 149,745 | 18.20 | 7,646 | 18.25 |
| 2016/03/04 | 11251 | 121 | 18.00 | 18.05 | -0.05(-0.28%) | 162,489 | 18.00 | 6,262 | 18.05 |
| 2016/03/03 | 15799 | 111 | 17.80 | 17.80 | +0.00(+0.00%) | 171,085 | 17.80 | 1,245 | 17.85 |
| 2016/03/02 | 12628 | 88 | 17.25 | 17.20 | +0.05(+0.29%) | 173,653 | 17.25 | 100 | 17.40 |
| 2016/03/01 | 9798 | 95 | 17.20 | 17.15 | +0.05(+0.29%) | 107,935 | 17.20 | 1,582 | 17.35 |
| 2016/02/26 | 7948 | 54 | 17.25 | 17.20 | +0.05(+0.29%) | 170,263 | 17.20 | 915 | 17.25 |
| 2016/02/25 | 10073 | 72 | 17.05 | 16.90 | +0.15(+0.89%) | 151,691 | 17.00 | 5,524 | 17.05 |
| 2016/02/24 | 8355 | 81 | 17.15 | 17.05 | +0.10(+0.59%) | 130,155 | 17.15 | 5,060 | 17.20 |
| 2016/02/23 | 6631 | 52 | 17.30 | 17.10 | +0.20(+1.17%) | 139,424 | 17.25 | 2,093 | 17.30 |
| 2016/02/22 | 7207 | 84 | 17.30 | 17.25 | +0.05(+0.29%) | 126,682 | 17.30 | 1,222 | 17.40 |
| 2016/02/19 | 13395 | 73 | 17.40 | 17.35 | +0.05(+0.29%) | 166,546 | 17.35 | 3,288 | 17.40 |
| 2016/02/18 | 8658 | 83 | 17.10 | 17.05 | +0.05(+0.29%) | 190,973 | 17.05 | 1,177 | 17.10 |
| 2016/02/17 | 8499 | 67 | 16.60 | 16.45 | +0.15(+0.91%) | 153,807 | 16.60 | 9,976 | 16.65 |
| 2016/02/16 | 9314 | 84 | 16.75 | 16.65 | +0.10(+0.60%) | 189,471 | 16.70 | 1,070 | 16.75 |
| 2016/02/15 | 11304 | 77 | 16.70 | 16.60 | +0.10(+0.60%) | 190,507 | 16.70 | 2,598 | 16.80 |
| 2016/02/03 | 12654 | 72 | 16.65 | 16.55 | +0.10(+0.60%) | 145,560 | 16.60 | 1,558 | 16.65 |
| 2016/02/02 | 15893 | 90 | 16.80 | 16.65 | +0.15(+0.90%) | 151,003 | 16.75 | 3,130 | 16.80 |
| 2016/02/01 | 8599 | 65 | 17.20 | 17.10 | +0.10(+0.58%) | 128,117 | 17.15 | 9,808 | 17.20 |
| 本資訊是整理台灣證券交易所公告所產生，僅供參考。所有資訊以台灣證券交易所公告為準。 | |||||||||
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