| 2026 |
| 09/11 | 465 | 467 | 458 | 467 | +0.43% | 1,500 | 30億3456万 | +2.41% |
| 09/10 | 466 | 466 | 465 | 465 | -0.64% | 300 | 30億2157万 | +1.97% |
| 09/09 | 466 | 471 | 466 | 468 | -0.85% | 600 | 30億4106万 | +2.86% |
| 09/08 | 480 | 482 | 469 | 472 | -0.63% | 4,200 | 30億6705万 | +3.96% |
| 09/07 | 470 | 475 | 467 | 475 | +0.85% | 5,200 | 30億8655万 | +4.63% |
| 09/04 | 475 | 475 | 470 | 471 | -0.84% | 10,200 | 30億6055万 | +3.97% |
| 09/03 | 475 | 475 | 469 | 475 | +1.06% | 6,600 | 30億8655万 | +5.09% |
| 09/02 | 464 | 471 | 464 | 470 | +1.51% | 3,600 | 30億5406万 | +4.21% |
| 09/01 | 462 | 472 | 462 | 463 | +0.87% | 3,900 | 30億857万 | +2.89% |
| 08/31 | 456 | 463 | 456 | 459 | +0.44% | 2,900 | 29億8258万 | +2% |
| 08/28 | 460 | 461 | 457 | 457 | -1.51% | 1,200 | 29億6958万 | +1.78% |
| 08/27 | 468 | 470 | 459 | 464 | -0.85% | 3,500 | 30億1507万 | +3.57% |
| 08/26 | 469 | 469 | 460 | 468 | 0% | 9,300 | 30億4106万 | +4.7% |
| 08/25 | 453 | 468 | 453 | 468 | +4.23% | 4,000 | 30億4106万 | +4.93% |
| 08/24 | 445 | 459 | 445 | 449 | +0.67% | 11,400 | 29億1760万 | +1.13% |
| 08/21 | 441 | 450 | 441 | 446 | +1.13% | 3,100 | 28億9810万 | +0.45% |
| 08/20 | 441 | 451 | 440 | 441 | 0% | 14,700 | 28億6561万 | -0.68% |
| 08/19 | 443 | 445 | 441 | 441 | -0.45% | 1,500 | 28億6561万 | -0.68% |
| 08/18 | 445 | 448 | 440 | 443 | 0% | 4,600 | 28億7861万 | -0.23% |
| 08/17 | 442 | 448 | 442 | 443 | -0.45% | 2,400 | 28億7861万 | 0% |
| 08/14 | 440 | 445 | 439 | 445 | +0.91% | 2,200 | 28億9161万 | +0.45% |
| 08/13 | 440 | 448 | 440 | 441 | +0.23% | 2,400 | 28億6561万 | -0.45% |
| 08/12 | 439 | 442 | 439 | 440 | +0.23% | 1,200 | 28億5912万 | -0.45% |
| 08/10 | 440 | 447 | 437 | 439 | -0.23% | 2,700 | 28億5262万 | -0.68% |
| 08/07 | 447 | 447 | 439 | 440 | -1.57% | 4,000 | 28億5912万 | -0.45% |
| 08/06 | 445 | 448 | 440 | 447 | +0.45% | 3,000 | 29億460万 | +1.13% |
| 08/05 | 445 | 465 | 444 | 445 | -2.63% | 10,500 | 28億9161万 | +0.68% |
| 08/04 | 475 | 475 | 457 | 457 | +0.66% | 2,700 | 29億6958万 | +3.63% |
| 08/03 | 448 | 458 | 445 | 454 | +0.44% | 5,700 | 29億5009万 | +3.42% |
| 07/31 | 452 | 474 | 450 | 452 | +0.67% | 6,300 | 29億3709万 | +3.2% |
| 07/30 | 451 | 453 | 449 | 449 | 0% | 2,300 | 29億1760万 | +2.98% |
| 07/29 | 450 | 453 | 449 | 449 | -0.22% | 2,400 | 29億1760万 | +3.46% |
| 07/28 | 451 | 454 | 450 | 450 | -0.22% | 1,400 | 29億2410万 | +3.93% |
| 07/27 | 470 | 470 | 450 | 451 | +0.89% | 15,500 | 29億3059万 | +4.16% |
| 07/24 | 439 | 447 | 438 | 447 | +2.05% | 2,000 | 29億460万 | +3.47% |
| 07/23 | 437 | 440 | 431 | 438 | +0.69% | 2,300 | 28億4612万 | +1.62% |
| 07/22 | 439 | 439 | 435 | 435 | 0% | 1,500 | 28億2663万 | +0.93% |
| 07/21 | (IR情報)10:00 システム ディ、『規程管理システム』にて「AIオプション機能」を提供開始 |
| 07/21 | 435 | 442 | 435 | 435 | +0.46% | 800 | 28億2663万 | +0.69% |
| 07/17 | 439 | 446 | 432 | 433 | -1.37% | 5,000 | 28億1363万 | 0% |
| 07/16 | 444 | 444 | 439 | 439 | -1.13% | 1,400 | 28億5262万 | +0.92% |
| 07/15 | 440 | 444 | 439 | 444 | +0.91% | 300 | 28億8511万 | +1.83% |
| 07/14 | 436 | 440 | 434 | 440 | +0.92% | 2,500 | 28億5912万 | +0.92% |
| 07/13 | (IR情報)10:00 システム ディ、サッポロビール博物館に『Smart Hello チケット』を導入 |
| 07/13 | 434 | 437 | 433 | 436 | +0.46% | 800 | 28億3312万 | 0% |
| 07/10 | 442 | 442 | 434 | 434 | -1.81% | 300 | 28億2013万 | -0.69% |
| 07/09 | 438 | 442 | 435 | 442 | +1.61% | 2,400 | 28億7211万 | +1.14% |
| 07/08 | (IR情報)10:00 システム ディ、UCCコーヒー博物館に『Smart Hello チケット』を導入 |
| 07/08 | 431 | 439 | 431 | 435 | +0.93% | 2,500 | 28億2663万 | -0.68% |
| 07/07 | 430 | 439 | 430 | 431 | -0.46% | 1,000 | 28億63万 | -1.82% |
| 07/06 | 447 | 447 | 433 | 433 | -1.59% | 600 | 28億1363万 | -1.59% |
| 07/03 | 443 | 443 | 432 | 440 | +1.15% | 1,000 | 28億5912万 | -0.45% |
| 07/02 | 434 | 442 | 434 | 435 | +0.23% | 3,700 | 28億2663万 | -1.81% |
| 07/01 | 428 | 441 | 428 | 434 | +1.88% | 3,500 | 28億2013万 | -2.47% |
| 06/30 | 408 | 429 | 408 | 426 | +3.4% | 4,800 | 27億6814万 | -4.7% |
| 06/29 | 419 | 419 | 407 | 412 | -1.67% | 6,600 | 26億7717万 | -8.44% |
| 06/26 | 426 | 427 | 410 | 419 | +2.2% | 9,600 | 27億2266万 | -7.71% |
| 06/25 | 410 | 411 | 408 | 410 | +0.24% | 6,000 | 26億6418万 | -10.28% |
| 06/24 | 422 | 422 | 408 | 409 | -4.22% | 9,600 | 26億5768万 | -11.28% |
| 06/23 | 430 | 431 | 418 | 427 | -0.7% | 2,800 | 27億7464万 | -8.17% |
| 06/22 | 426 | 431 | 420 | 430 | +0.23% | 6,200 | 27億9414万 | -7.73% |
| 06/19 | 428 | 432 | 425 | 429 | 0% | 3,200 | 27億8764万 | -8.33% |
| 06/18 | 435 | 437 | 426 | 429 | -0.92% | 2,400 | 27億8764万 | -8.72% |
| 06/17 | 438 | 439 | 423 | 433 | -4.63% | 10,400 | 28億1363万 | -8.26% |
| 06/16 | 459 | 459 | 439 | 454 | -6% | 10,000 | 29億5009万 | -4.02% |
| 06/15 | (IR情報)15:30 2026年10月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 06/15 | 469 | 483 | 463 | 483 | +2.99% | 11,600 | 31億3853万 | +1.68% |
| 06/12 | 458 | 469 | 451 | 469 | +2.63% | 6,500 | 30億4756万 | -1.47% |
| 06/11 | 451 | 457 | 450 | 457 | +1.56% | 1,000 | 29億6958万 | -4.39% |
| 06/10 | 450 | 452 | 450 | 450 | 0% | 1,200 | 29億2410万 | -6.44% |
| 06/09 | 442 | 450 | 439 | 450 | +1.81% | 3,400 | 29億2410万 | -7.41% |
| 06/08 | 449 | 449 | 440 | 442 | -2.86% | 3,100 | 28億7211万 | -9.8% |
| 06/05 | 451 | 456 | 445 | 455 | -0.66% | 5,000 | 29億5659万 | -8.27% |
| 06/04 | 462 | 462 | 453 | 458 | -0.87% | 1,500 | 29億7608万 | -8.95% |
| 06/03 | 455 | 470 | 455 | 462 | +0.43% | 5,400 | 30億207万 | -9.06% |
| 06/02 | 465 | 466 | 455 | 460 | -3.16% | 6,800 | 29億8908万 | -10.33% |
| 06/01 | 466 | 475 | 466 | 475 | +1.93% | 3,500 | 30億8655万 | -8.3% |
| 05/29 | 477 | 482 | 466 | 466 | -2.1% | 4,000 | 30億2806万 | -10.73% |
| 05/28 | 492 | 492 | 476 | 476 | -3.84% | 2,300 | 30億9304万 | -9.51% |
| 05/27 | (IR情報)15:30 非上場の親会社等の決算に関するお知らせ |
| 05/27 | 497 | 497 | 487 | 495 | -1% | 700 | 32億1651万 | -6.6% |
| 05/26 | 511 | 511 | 497 | 500 | 0% | 5,100 | 32億4900万 | -6.37% |
| 05/25 | 509 | 509 | 495 | 500 | -0.6% | 3,300 | 32億4900万 | -7.06% |
| 05/22 | 513 | 513 | 492 | 503 | -1.95% | 5,400 | 32億6849万 | -7.02% |
| 05/21 | 512 | 513 | 501 | 513 | +2.81% | 2,300 | 33億3347万 | -5.87% |
| 05/20 | 479 | 499 | 469 | 499 | +6.4% | 3,600 | 32億4250万 | -8.94% |
| 05/19 | 479 | 480 | 466 | 469 | -0.42% | 9,700 | 30億4756万 | -15.04% |
| 05/18 | 473 | 478 | 466 | 471 | -0.42% | 3,000 | 30億6055万 | -15.29% |
| 05/15 | 476 | 478 | 472 | 473 | -1.05% | 4,400 | 30億7355万 | -15.54% |
| 05/14 | 486 | 486 | 478 | 478 | 0% | 3,400 | 31億604万 | -15.25% |
| 05/13 | 482 | 487 | 478 | 478 | -3.43% | 5,100 | 31億604万 | -15.7% |
| 05/12 | 504 | 505 | 495 | 495 | -1.79% | 5,200 | 32億1651万 | -13.16% |
| 05/11 | 510 | 521 | 504 | 504 | -3.08% | 5,400 | 32億7499万 | -11.89% |
| 05/08 | 538 | 544 | 520 | 520 | -4.24% | 4,900 | 33億7896万 | -9.25% |
| 05/07 | 555 | 555 | 531 | 543 | -2.16% | 5,700 | 35億2841万 | -5.57% |
| 05/01 | 558 | 579 | 552 | 555 | -1.07% | 2,800 | 36億639万 | -3.65% |
| 05/01 | 株式分割 1→3 |
| 04/30 | 569 | 573 | 552 | 561 | -6.34% | 4,000 | 36億4537万 | -2.94% |
| 04/28 | 640 | 642 | 563 | 599 | -3.39% | 7,800 | 38億9230万 | +3.99% |
| 04/27 | (IR情報)11:00 『fmSMART』事業譲受に関する基本合意書締結のお知らせ |
| 04/27 | (IR情報)10:00 システム ディ、大和大学にて学校事務トータルシステム『Campus Plan』AIチャットボットサービス実証実験を開始 |
| 04/27 | 617 | 631 | 598 | 620 | +6.16% | 18,900 | 120億8628万 | +8.2% |
| 04/24 | 571 | 599 | 571 | 584 | +0.63% | 13,200 | 113億8449万 | +2.82% |
| 04/23 | 582 | 583 | 580 | 580 | -0.34% | 1,500 | 113億1301万 | +2.53% |
| 04/22 | (IR情報)10:30 「東京スカイツリー(R)」にクラウド型チケット管理システム『Smart Hello チケット』を導入 |
| 04/22 | 582 | 582 | 582 | 582 | +1.51% | 300 | 113億5200万 | +3.43% |
| 04/21 | 575 | 578 | 574 | 574 | -0.75% | 1,500 | 111億8305万 | +2.44% |
| 04/20 | 583 | 583 | 577 | 578 | -0.91% | 2,400 | 112億6753万 | +3.4% |
| 04/17 | 586 | 595 | 571 | 583 | -0.51% | 3,000 | 113億7150万 | +4.73% |
| 04/16 | (IR情報)10:00 システム ディ、公会計システム『PPP』新バージョン6.0を提供開始 |