| 2018 |
| 06/26 | 4,050 | 4,165 | 4,040 | 4,095 | -2.27% | 3,000 | 221億8600万 | -1.56% |
| 06/25 | 4,260 | 4,310 | 4,190 | 4,190 | -1.53% | 5,600 | 227億70万 | +0.62% |
| 06/22 | 4,220 | 4,335 | 4,220 | 4,255 | +1.07% | 13,500 | 230億5286万 | +2.04% |
| 06/21 | 4,050 | 4,230 | 4,050 | 4,210 | +4.86% | 5,500 | 228億906万 | +1.06% |
| 06/20 | 3,950 | 4,025 | 3,935 | 4,015 | +1.65% | 11,100 | 217億5258万 | -3.37% |
| 06/19 | 3,945 | 4,050 | 3,920 | 3,950 | -0.5% | 12,200 | 214億42万 | -4.87% |
| 06/18 | 4,055 | 4,105 | 3,900 | 3,970 | -3.76% | 9,700 | 215億878万 | -4.43% |
| 06/15 | （IR情報）15:00 自己株式の消却に関するお知らせ |
| 06/15 | 4,135 | 4,205 | 4,070 | 4,125 | -0.24% | 9,000 | 223億4854万 | -0.7% |
| 06/14 | 4,320 | 4,320 | 4,135 | 4,135 | -4.61% | 6,400 | 224億272万 | -0.34% |
| 06/13 | 4,255 | 4,350 | 4,255 | 4,335 | +2.48% | 6,100 | 234億8628万 | +4.71% |
| 06/12 | 4,225 | 4,260 | 4,160 | 4,230 | +1.2% | 11,400 | 229億1741万 | +1.9% |
| 06/11 | 4,180 | 4,250 | 4,180 | 4,180 | -0.24% | 6,200 | 226億4652万 | +0.24% |
| 06/08 | 4,120 | 4,220 | 4,120 | 4,190 | 0% | 6,300 | 227億70万 | +0.05% |
| 06/07 | 4,140 | 4,210 | 4,140 | 4,190 | +1.33% | 14,100 | 227億70万 | -0.24% |
| 06/06 | 4,170 | 4,175 | 4,110 | 4,135 | -1.43% | 4,300 | 224億272万 | -1.83% |
| 06/05 | 4,180 | 4,245 | 4,165 | 4,195 | +1.21% | 2,800 | 227億2779万 | -0.8% |
| 06/04 | 4,185 | 4,185 | 4,110 | 4,145 | -0.6% | 5,100 | 224億5690万 | -2.24% |
| 06/01 | 4,210 | 4,230 | 4,170 | 4,170 | -0.71% | 10,800 | 225億9234万 | -1.84% |
| 05/31 | 4,150 | 4,235 | 4,140 | 4,200 | +3.19% | 3,600 | 227億5488万 | -1.34% |
| 05/30 | 4,100 | 4,120 | 4,055 | 4,070 | -2.16% | 8,100 | 220億5056万 | -4.48% |
| 05/29 | 4,175 | 4,220 | 4,150 | 4,160 | -0.72% | 14,000 | 225億3816万 | -2.64% |
| 05/28 | 4,160 | 4,245 | 4,150 | 4,190 | -0.24% | 6,700 | 227億70万 | -2.17% |
| 05/25 | 4,240 | 4,300 | 4,200 | 4,200 | -1.52% | 10,400 | 227億5488万 | -1.94% |
| 05/24 | 4,255 | 4,300 | 4,200 | 4,265 | +1.67% | 11,500 | 231億704万 | -0.3% |
| 05/23 | 4,185 | 4,215 | 4,100 | 4,195 | -0.36% | 6,500 | 227億2779万 | -1.78% |
| 05/22 | 4,325 | 4,325 | 4,180 | 4,210 | -2.88% | 21,300 | 228億906万 | -1.27% |
| 05/21 | 4,145 | 4,340 | 4,145 | 4,335 | +4.58% | 16,600 | 234億8628万 | +1.86% |
| 05/18 | 3,970 | 4,145 | 3,970 | 4,145 | +5.07% | 16,100 | 224億5690万 | -2.26% |
| 05/17 | 3,930 | 3,960 | 3,900 | 3,945 | +0.25% | 11,200 | 213億7333万 | -6.72% |
| 05/16 | 3,980 | 4,010 | 3,890 | 3,935 | -1.5% | 14,900 | 213億1915万 | -6.95% |
| 05/15 | 4,030 | 4,040 | 3,940 | 3,995 | +0.25% | 30,000 | 216億4422万 | -5.51% |
| 05/14 | 3,935 | 4,020 | 3,935 | 3,985 | 0% | 31,800 | 215億9004万 | -5.66% |
| 05/11 | 3,840 | 4,050 | 3,815 | 3,985 | +1.92% | 35,700 | 215億9004万 | -5.66% |
| 05/10 | 4,540 | 4,540 | 3,910 | 3,910 | -15.18% | 49,400 | 211億8371万 | -7.35% |
| 05/09 | 4,750 | 4,800 | 4,610 | 4,610 | -2.23% | 17,000 | 249億7619万 | +9.24% |
| 05/08 | （IR情報）15:00 平成30年12月期第1四半期決算短信〔日本基準〕(連結) |
| 05/08 | 4,620 | 4,780 | 4,620 | 4,715 | +2.06% | 27,400 | 255億4506万 | +12.53% |
| 05/07 | 4,510 | 4,660 | 4,500 | 4,620 | +2.9% | 29,100 | 250億3036万 | +11.35% |
| 05/02 | 4,565 | 4,590 | 4,475 | 4,490 | -0.33% | 5,500 | 243億2605万 | +9.35% |
| 05/01 | 4,530 | 4,590 | 4,290 | 4,505 | -1.21% | 20,400 | 244億731万 | +10.77% |
| 04/27 | 4,495 | 4,570 | 4,495 | 4,560 | +2.13% | 28,800 | 247億530万 | +13.29% |
| 04/26 | 4,350 | 4,490 | 4,350 | 4,465 | +2.64% | 21,700 | 241億9060万 | +12.16% |
| 04/25 | 4,350 | 4,390 | 4,300 | 4,350 | -0.57% | 16,900 | 235億6755万 | +10.04% |
| 04/24 | 4,340 | 4,390 | 4,335 | 4,375 | +1.27% | 5,900 | 237億300万 | +11.38% |
| 04/23 | 4,355 | 4,370 | 4,320 | 4,320 | -1.14% | 8,700 | 234億502万 | +10.74% |
| 04/20 | 4,390 | 4,395 | 4,315 | 4,370 | -0.57% | 14,900 | 236億7591万 | +12.6% |
| 04/19 | 4,330 | 4,500 | 4,305 | 4,395 | +4.89% | 44,000 | 238億1135万 | +13.77% |
| 04/18 | 4,120 | 4,190 | 4,105 | 4,190 | +2.57% | 16,600 | 227億70万 | +9.14% |
| 04/17 | 4,105 | 4,130 | 4,030 | 4,085 | 0% | 13,700 | 221億3183万 | +6.83% |
| 04/16 | 4,070 | 4,150 | 4,070 | 4,085 | +1.49% | 10,800 | 221億3183万 | +7.16% |
| 04/13 | 4,040 | 4,100 | 4,020 | 4,025 | +0.5% | 19,200 | 218億676万 | +6.06% |
| 04/12 | 4,000 | 4,070 | 3,995 | 4,005 | +1.01% | 27,600 | 216億9840万 | +5.95% |
| 04/11 | 3,895 | 3,980 | 3,895 | 3,965 | +3.12% | 19,600 | 214億8169万 | +5.2% |
| 04/10 | 3,915 | 3,915 | 3,835 | 3,845 | -2.29% | 2,400 | 208億3155万 | +2.12% |
| 04/09 | 3,895 | 3,950 | 3,880 | 3,935 | +0.64% | 9,100 | 213億1915万 | +4.63% |
| 04/06 | 3,890 | 3,925 | 3,855 | 3,910 | 0% | 6,700 | 211億8371万 | +4.02% |
| 04/05 | 4,000 | 4,000 | 3,885 | 3,910 | -1.88% | 9,900 | 211億8371万 | +3.96% |
| 04/04 | 4,000 | 4,035 | 3,910 | 3,985 | +2.71% | 25,500 | 215億9004万 | +5.79% |
| 04/03 | 3,840 | 3,980 | 3,840 | 3,880 | -0.39% | 16,900 | 210億2117万 | +2.97% |
| 04/02 | 3,905 | 3,955 | 3,840 | 3,895 | +0.39% | 14,200 | 211億244万 | +3.4% |
| 03/30 | （IR情報）15:00 支配株主等に関する事項について |
| 03/30 | 3,745 | 3,890 | 3,745 | 3,880 | +5.29% | 19,000 | 210億2117万 | +2.97% |
| 03/29 | 3,600 | 3,685 | 3,560 | 3,685 | +3.95% | 11,900 | 199億6469万 | -2.31% |
| 03/28 | 3,560 | 3,570 | 3,465 | 3,545 | +0.71% | 25,100 | 192億620万 | -6.34% |
| 03/27 | 3,520 | 3,575 | 3,470 | 3,520 | +2.03% | 14,400 | 190億7075万 | -7.34% |
| 03/26 | 3,400 | 3,475 | 3,365 | 3,450 | +0.15% | 36,100 | 186億9151万 | -9.69% |
| 03/23 | （IR情報）15:00 株式交換に関する定時株主総会の承認可決に関するお知らせ |
| 03/23 | （IR情報）15:00 役員人事に関するお知らせ |
| 03/23 | 3,665 | 3,670 | 3,445 | 3,445 | -8.74% | 18,200 | 186億6442万 | -10.29% |
| 03/22 | 3,750 | 3,865 | 3,750 | 3,775 | +1.62% | 16,200 | 204億5230万 | -2.23% |
| 03/20 | 3,675 | 3,735 | 3,645 | 3,715 | +0.13% | 7,200 | 201億2723万 | -3.73% |
| 03/19 | 3,800 | 3,800 | 3,675 | 3,710 | -3.13% | 5,400 | 201億14万 | -3.84% |
| 03/16 | 3,895 | 3,895 | 3,690 | 3,830 | -1.92% | 11,900 | 207億5028万 | -0.65% |
| 03/15 | 3,815 | 3,910 | 3,815 | 3,905 | +2.49% | 9,100 | 211億5662万 | +1.43% |
| 03/14 | 3,810 | 3,845 | 3,800 | 3,810 | 0% | 4,600 | 206億4192万 | -0.7% |
| 03/13 | 3,775 | 3,880 | 3,775 | 3,810 | +0.53% | 10,100 | 206億4192万 | -0.5% |
| 03/12 | 3,740 | 3,790 | 3,725 | 3,790 | +3.98% | 15,200 | 205億3357万 | -1.38% |
| 03/09 | 3,670 | 3,760 | 3,625 | 3,645 | 0% | 21,700 | 197億4798万 | -5.84% |
| 03/08 | 3,745 | 3,750 | 3,640 | 3,645 | -2.8% | 36,900 | 197億4798万 | -6.61% |
| 03/07 | 3,875 | 3,875 | 3,730 | 3,750 | -2.98% | 26,200 | 203億1685万 | -4.73% |
| 03/06 | 3,815 | 3,900 | 3,805 | 3,865 | +3.2% | 26,400 | 209億3990万 | -2.5% |
| 03/05 | 3,840 | 3,880 | 3,705 | 3,745 | -3.48% | 38,900 | 202億8976万 | -5.95% |
| 03/02 | 3,895 | 3,970 | 3,880 | 3,880 | -2.14% | 51,000 | 210億2117万 | -3.15% |
| 03/01 | 3,990 | 4,025 | 3,895 | 3,965 | -2.1% | 23,300 | 214億8169万 | -1.49% |
| 02/28 | 3,980 | 4,080 | 3,955 | 4,050 | +1.25% | 49,000 | 219億4220万 | +0.25% |
| 02/27 | 3,860 | 4,030 | 3,860 | 4,000 | +3.49% | 33,100 | 216億7131万 | -1.26% |
| 02/26 | 3,880 | 3,935 | 3,830 | 3,865 | -1.4% | 55,600 | 209億3990万 | -5.04% |
| 02/23 | 3,980 | 3,980 | 3,860 | 3,920 | -1.51% | 17,800 | 212億3788万 | -3.99% |
| 02/22 | 4,010 | 4,020 | 3,960 | 3,980 | -0.75% | 7,900 | 215億6295万 | -2.59% |
| 02/21 | 3,950 | 4,065 | 3,950 | 4,010 | +2.82% | 33,800 | 217億2549万 | -1.96% |
| 02/20 | （IR情報）15:00 取締役候補者選任に関するお知らせ |
| 02/20 | （IR情報）15:00 剰余金の配当に関するお知らせ |
| 02/20 | 4,000 | 4,035 | 3,860 | 3,900 | -3.23% | 34,200 | 211億2953万 | -4.46% |
| 02/19 | 3,925 | 4,110 | 3,925 | 4,030 | +1.9% | 30,600 | 218億3385万 | -1.1% |
| 02/16 | 3,950 | 4,085 | 3,915 | 3,955 | -0.5% | 69,200 | 214億2751万 | -2.44% |
| 02/15 | 4,205 | 4,270 | 3,975 | 3,975 | +7% | 134,900 | 215億3587万 | -1.29% |
| 02/14 | （IR情報）15:30 平成29年12月期決算短信〔日本基準〕(連結) |
| 02/14 | （IR情報）15:30 オプテックスグループによるシーシーエスの株式交換を用いた完全子会社化に関する株式交換契約の締結並びにオプテックスグループの株式分割及び定款の一部変更 |
| 02/14 | 3,700 | 3,800 | 3,690 | 3,715 | +0.68% | 44,500 | 201億2723万 | -7.03% |
| 02/13 | 3,950 | 3,955 | 3,690 | 3,690 | +1.23% | 19,100 | 199億9178万 | -7.17% |
| 02/09 | 3,600 | 3,660 | 3,550 | 3,645 | -1.75% | 32,100 | 197億4798万 | -7.91% |
| 02/08 | 3,605 | 3,860 | 3,575 | 3,710 | +3.78% | 26,300 | 201億14万 | -5.91% |
| 02/07 | 3,955 | 3,955 | 3,520 | 3,575 | -0.69% | 19,600 | 193億6873万 | -8.85% |
| 02/06 | 3,950 | 4,000 | 3,480 | 3,600 | -13.88% | 46,900 | 195億418万 | -7.9% |
| 02/05 | 4,200 | 4,385 | 4,160 | 4,180 | -6.7% | 19,300 | 226億4652万 | +7.32% |
| 02/02 | 4,445 | 4,525 | 4,340 | 4,480 | +0.79% | 19,400 | 242億7187万 | +16.15% |
| 02/01 | 4,515 | 4,535 | 4,410 | 4,445 | -0.45% | 12,900 | 240億8224万 | +16.64% |
| 01/31 | 4,445 | 4,510 | 4,395 | 4,465 | +0.45% | 11,600 | 241億9060万 | +18.53% |
