| 2026 |
| 10/01 | 142 | 145 | 142 | 144 | +0.7% | 27,300 | - | -5.26% |
| 09/30 | 145 | 146 | 142 | 143 | -0.69% | 37,100 | - | -5.92% |
| 09/29 | 145 | 146 | 144 | 144 | -4% | 56,900 | - | -5.26% |
| 09/28 | 154 | 157 | 149 | 150 | -3.85% | 118,000 | - | -1.32% |
| 09/25 | 155 | 156 | 152 | 156 | +1.3% | 50,400 | - | +3.31% |
| 09/24 | 155 | 158 | 154 | 154 | +0.65% | 54,900 | - | +1.99% |
| 09/18 | 156 | 156 | 150 | 153 | -1.92% | 43,500 | - | +2% |
| 09/17 | 151 | 156 | 151 | 156 | +4% | 35,000 | - | +4% |
| 09/16 | 152 | 154 | 149 | 150 | -0.66% | 55,600 | - | +0.67% |
| 09/15 | (IR情報)15:30 出会いの場は“マッチングアプリ疲れ”から“リアル回帰”へ、夜の水族館で大規模恋活イベント「かもすいナイト」を9月26日開催、鶴岡市が後援 |
| 09/15 | 153 | 153 | 151 | 151 | +0.67% | 14,600 | - | +1.34% |
| 09/14 | 150 | 152 | 150 | 150 | 0% | 16,000 | - | +1.35% |
| 09/11 | 153 | 155 | 150 | 150 | -2.6% | 67,800 | - | +2.04% |
| 09/10 | 154 | 155 | 153 | 154 | -0.65% | 19,500 | - | +5.48% |
| 09/09 | 152 | 155 | 151 | 155 | +1.31% | 30,800 | - | +6.16% |
| 09/08 | 153 | 155 | 152 | 153 | -1.29% | 37,100 | - | +5.52% |
| 09/07 | 154 | 157 | 152 | 155 | +0.65% | 26,900 | - | +7.64% |
| 09/04 | 150 | 169 | 148 | 154 | +2.67% | 485,200 | - | +7.69% |
| 09/03 | 151 | 154 | 149 | 150 | +0.67% | 53,300 | - | +5.63% |
| 09/02 | 156 | 156 | 148 | 149 | -5.7% | 191,500 | - | +5.67% |
| 09/01 | 159 | 160 | 156 | 158 | -1.25% | 179,100 | - | +12.86% |
| 08/31 | 160 | 163 | 158 | 160 | -5.88% | 443,100 | - | +15.11% |
| 08/28 | 149 | 192 | 148 | 170 | +17.24% | 8,116,800 | - | +24.09% |
| 08/27 | (IR情報)15:30 新規事業の開始に関するお知らせ |
| 08/27 | 145 | 147 | 144 | 145 | 0% | 9,100 | - | +7.41% |
| 08/26 | 146 | 147 | 144 | 145 | 0% | 14,000 | - | +7.41% |
| 08/25 | 145 | 146 | 142 | 145 | +0.69% | 41,700 | - | +8.21% |
| 08/24 | 142 | 144 | 141 | 144 | +1.41% | 20,700 | - | +8.27% |
| 08/21 | 142 | 144 | 140 | 142 | 0% | 28,300 | - | +6.77% |
| 08/20 | 143 | 145 | 141 | 142 | -1.39% | 45,000 | - | +7.58% |
| 08/19 | 145 | 145 | 142 | 144 | -0.69% | 25,600 | - | +9.09% |
| 08/18 | (IR情報)15:30 2026年9月期第3四半期決算に関する質疑応答集 |
| 08/18 | 145 | 153 | 139 | 145 | +2.84% | 122,900 | - | +10.69% |
| 08/18 | (空売り報告)大和証券 96,000株(0.49%)-0.08%義務消失 |
| 08/17 | 139 | 141 | 134 | 141 | +0.71% | 83,900 | - | +8.46% |
| 08/14 | (IR情報)15:30 2026年9月期第3四半期決算短信〔日本基準〕(連結) |
| 08/14 | (IR情報)15:30 システムの不具合による個人情報の表示に関するお詫びとお知らせ |
| 08/14 | (IR情報)15:30 2026年9月期第3四半期決算補足説明資料 |
| 08/14 | (IR情報)15:30 2026年9月期第3四半期決算説明動画公開のお知らせ |
| 08/14 | (IR情報)15:30 自社大型イベント戦略のさらなる進化、地方自治体との連携による大型出会いイベントを新潟県上越市の水族館にて開催 |
| 08/14 | 137 | 140 | 135 | 140 | +1.45% | 101,500 | - | +8.53% |
| 08/13 | 137 | 138 | 135 | 138 | +1.47% | 31,600 | - | +7.81% |
| 08/12 | 132 | 136 | 132 | 136 | +1.49% | 31,800 | - | +6.25% |
| 08/10 | 133 | 134 | 133 | 134 | +1.52% | 22,700 | - | +5.51% |
| 08/07 | 132 | 133 | 131 | 132 | +0.76% | 20,300 | - | +3.94% |
| 08/06 | 133 | 133 | 131 | 131 | +0.77% | 7,000 | - | +3.15% |
| 08/05 | 131 | 133 | 130 | 130 | -0.76% | 14,500 | - | +3.17% |
| 08/04 | 131 | 132 | 130 | 131 | 0% | 23,900 | - | +4.8% |
| 08/03 | 136 | 136 | 129 | 131 | -1.5% | 41,100 | - | +4.8% |
| 07/31 | 129 | 133 | 128 | 133 | +3.91% | 39,700 | - | +7.26% |
| 07/30 | 125 | 128 | 125 | 128 | 0% | 19,900 | - | +4.07% |
| 07/29 | 124 | 128 | 124 | 128 | +3.23% | 14,300 | - | +4.92% |
| 07/28 | 127 | 127 | 124 | 124 | -3.13% | 30,700 | - | +1.64% |
| 07/27 | 125 | 128 | 125 | 128 | +4.07% | 10,600 | - | +5.79% |
| 07/24 | 125 | 125 | 123 | 123 | -2.38% | 39,300 | - | +1.65% |
| 07/23 | 126 | 127 | 125 | 126 | -1.56% | 21,800 | - | +5% |
| 07/22 | (IR情報)15:30 自社大型イベント戦略が順調に進捗、「MEGA LOVE FES」累計開催数30回・参加者数15,000名突破、開催都市も14都市へ拡大 |
| 07/22 | 128 | 129 | 127 | 128 | +2.4% | 14,100 | - | +6.67% |
| 07/21 | 125 | 130 | 123 | 125 | +0.81% | 36,700 | - | +5.04% |
| 07/17 | 132 | 132 | 123 | 124 | -5.34% | 73,000 | - | +4.2% |
| 07/16 | 128 | 131 | 128 | 131 | +1.55% | 18,800 | - | +11.02% |
| 07/15 | 128 | 129 | 127 | 129 | 0% | 14,600 | - | +10.26% |
| 07/14 | 130 | 131 | 128 | 129 | +1.57% | 35,400 | - | +10.26% |
| 07/13 | 122 | 127 | 122 | 127 | +4.1% | 84,500 | - | +9.48% |
| 07/10 | (IR情報)15:30 子会社MiDATAの手書き帳票の完全自動データ化を実現するAI-OCRサービス「カタヨセタイムシート」ベータ版の提供開始に関するお知らせ |
| 07/10 | 124 | 124 | 120 | 122 | 0% | 30,700 | - | +5.17% |
| 07/09 | 122 | 123 | 121 | 122 | +0.83% | 20,700 | - | +6.09% |
| 07/08 | 123 | 124 | 121 | 121 | -0.82% | 19,500 | - | +5.22% |
| 07/07 | 123 | 125 | 122 | 122 | -2.4% | 41,100 | - | +6.09% |
| 07/06 | 126 | 126 | 123 | 125 | +2.46% | 32,300 | - | +9.65% |
| 07/03 | 124 | 124 | 121 | 122 | -0.81% | 33,900 | - | +7.02% |
| 07/02 | 119 | 124 | 119 | 123 | +4.24% | 41,700 | - | +7.89% |
| 07/01 | 116 | 118 | 114 | 118 | +4.42% | 30,300 | - | +3.51% |
| 06/30 | 114 | 114 | 111 | 113 | +1.8% | 36,500 | - | -0.88% |
| 06/29 | 114 | 114 | 111 | 111 | 0% | 45,800 | - | -3.48% |
| 06/26 | 112 | 113 | 111 | 111 | -0.89% | 23,200 | - | -4.31% |
| 06/25 | 114 | 114 | 111 | 112 | 0% | 15,800 | - | -4.27% |
| 06/24 | 110 | 113 | 110 | 112 | +0.9% | 41,500 | - | -4.27% |
| 06/23 | 114 | 115 | 111 | 111 | -2.63% | 52,000 | - | -5.93% |
| 06/22 | 118 | 118 | 113 | 114 | -5% | 341,100 | - | -4.2% |
| 06/19 | 119 | 138 | 117 | 120 | +5.26% | 1,872,100 | - | 0% |
| 06/18 | 115 | 117 | 113 | 114 | +0.88% | 59,900 | - | -5% |
| 06/18 | (空売り報告)大和証券 112,800株(0.57%)-0.12% |
| 06/17 | 114 | 115 | 113 | 113 | +0.89% | 34,200 | - | -6.61% |
| 06/16 | 111 | 112 | 110 | 112 | +0.9% | 36,900 | - | -8.2% |
| 06/15 | 111 | 116 | 111 | 111 | +2.78% | 59,900 | - | -10.48% |
| 06/12 | 108 | 110 | 108 | 108 | -0.92% | 66,200 | - | -14.29% |
| 06/11 | 112 | 113 | 109 | 109 | -3.54% | 68,600 | - | -14.84% |
| 06/10 | 116 | 116 | 112 | 113 | -2.59% | 51,600 | - | -13.08% |
| 06/09 | 114 | 116 | 112 | 116 | +2.65% | 45,200 | - | -11.45% |
| 06/08 | 115 | 116 | 110 | 113 | -0.88% | 130,100 | - | -15.04% |
| 06/08 | (空売り報告)大和証券 136,400株(0.69%)-0.01% |
| 06/05 | (IR情報)15:30 2026年9月期第2四半期決算に関する質疑応答集 |
| 06/05 | 115 | 116 | 114 | 114 | 0% | 49,800 | - | -15.56% |
| 06/04 | 114 | 116 | 113 | 114 | 0% | 57,300 | - | -16.79% |
| 06/03 | 117 | 118 | 113 | 114 | -2.56% | 62,200 | - | -17.99% |
| 06/02 | 120 | 120 | 115 | 117 | -2.5% | 91,700 | - | -17.02% |
| 06/01 | 123 | 125 | 120 | 120 | -3.23% | 41,800 | - | -16.08% |
| 05/29 | 125 | 126 | 122 | 124 | -0.8% | 19,500 | - | -14.48% |
| 05/28 | 119 | 126 | 119 | 125 | +4.17% | 121,200 | - | -14.97% |
| 05/27 | 129 | 129 | 118 | 120 | -6.98% | 231,300 | - | -19.46% |
| 05/26 | 132 | 132 | 128 | 129 | -1.53% | 46,100 | - | -14.57% |
| 05/25 | 135 | 135 | 130 | 131 | -1.5% | 32,200 | - | -13.82% |
| 05/22 | 133 | 134 | 130 | 133 | +2.31% | 38,200 | - | -13.64% |
| 05/21 | 132 | 133 | 130 | 130 | -0.76% | 29,700 | - | -16.13% |
| 05/20 | 133 | 133 | 130 | 131 | -2.96% | 44,500 | - | -16.03% |
| 05/19 | 130 | 136 | 130 | 135 | +3.05% | 77,600 | - | -14.56% |
| 05/18 | 135 | 135 | 127 | 131 | -1.5% | 70,400 | - | -17.61% |
| 05/15 | 135 | 137 | 133 | 133 | -0.75% | 88,600 | - | -17.39% |
| 05/14 | (IR情報)15:30 自社大型イベントが順調に拡大-「四国水族館ナイト」最大800名規模イベント開催決定- |
| 05/14 | 142 | 142 | 133 | 134 | -6.29% | 141,200 | - | -17.28% |
| 05/13 | 144 | 144 | 142 | 143 | -1.38% | 65,100 | - | -12.8% |
| 05/12 | 154 | 155 | 145 | 145 | -11.04% | 240,200 | - | -12.12% |
| 05/12 | (空売り報告)大和証券 136,900株(0.7%)+0.05% |
| 05/11 | (IR情報)15:30 2026年9月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 05/11 | (IR情報)15:30 2026年9月期第2四半期決算補足説明資料 |
| 05/11 | (IR情報)15:30 2026年9月期第2四半期決算説明動画公開のお知らせ |
| 05/11 | 158 | 163 | 157 | 163 | +3.16% | 87,000 | - | -1.81% |
| 05/08 | 158 | 158 | 155 | 158 | +0.64% | 33,000 | - | -4.82% |