| 2014 |
| 07/28 | 279 | 284 | 279 | 283 | 0% | 18,400 | 20億7600万 | -2.75% |
| 07/25 | 286 | 287 | 280 | 283 | 0% | 4,800 | 20億7600万 | -3.41% |
| 07/24 | 286 | 286 | 282 | 283 | -0.7% | 8,600 | 20億7600万 | -3.41% |
| 07/23 | 283 | 285 | 283 | 285 | +0.71% | 4,500 | 20億9067万 | -3.06% |
| 07/22 | 281 | 285 | 281 | 283 | +0.71% | 3,000 | 20億7600万 | -3.74% |
| 07/18 | 283 | 283 | 279 | 281 | -1.75% | 1,000 | 20億6133万 | -4.75% |
| 07/17 | 292 | 292 | 286 | 286 | -1.04% | 2,100 | 20億9801万 | -3.38% |
| 07/16 | 288 | 293 | 288 | 289 | +0.35% | 9,300 | 21億2002万 | -2.36% |
| 07/15 | 284 | 288 | 284 | 288 | +0.35% | 2,300 | 21億1268万 | -3.03% |
| 07/14 | 285 | 287 | 284 | 287 | +0.7% | 900 | 21億534万 | -3.37% |
| 07/11 | 284 | 285 | 279 | 285 | 0% | 6,700 | 20億9067万 | -4.04% |
| 07/10 | 282 | 289 | 282 | 285 | -1.72% | 18,100 | 20億9067万 | -4.04% |
| 07/08 | 300 | 300 | 289 | 290 | -1.02% | 7,500 | 21億2735万 | -2.36% |
| 07/07 | 290 | 293 | 290 | 293 | +0.69% | 2,600 | 21億4936万 | -1.35% |
| 07/04 | 298 | 298 | 291 | 291 | -2.02% | 2,400 | 21億3469万 | -2.02% |
| 07/03 | 297 | 297 | 297 | 297 | +0.34% | 800 | 21億7870万 | 0% |
| 07/02 | 290 | 297 | 290 | 296 | -0.67% | 4,300 | 21億7137万 | -0.34% |
| 07/01 | 300 | 308 | 294 | 298 | 0% | 6,200 | 21億8604万 | +0.68% |
| 06/30 | 298 | 302 | 295 | 298 | +1.71% | 1,700 | 23億9294万 | +0.68% |
| 06/27 | (IR情報)15:00 支配株主等に関する事項について |
| 06/27 | 292 | 296 | 292 | 293 | -1.01% | 1,000 | 23億5279万 | -0.68% |
| 06/26 | 300 | 300 | 296 | 296 | -1.33% | 1,600 | 23億7688万 | +0.34% |
| 06/25 | 307 | 307 | 300 | 300 | -0.66% | 1,200 | 24億900万 | +2.04% |
| 06/24 | 309 | 309 | 301 | 302 | -0.66% | 1,200 | 24億2506万 | +3.07% |
| 06/23 | 304 | 304 | 304 | 304 | -2.25% | 600 | 24億4112万 | +4.11% |
| 06/20 | 310 | 316 | 309 | 311 | +0.32% | 5,700 | 24億9733万 | +6.87% |
| 06/19 | 305 | 310 | 305 | 310 | +1.64% | 12,300 | 24億8930万 | +6.9% |
| 06/18 | 300 | 305 | 299 | 305 | +1.67% | 10,400 | 24億4915万 | +5.9% |
| 06/17 | 296 | 300 | 296 | 300 | +2.04% | 9,100 | 24億900万 | +4.53% |
| 06/16 | 294 | 297 | 287 | 294 | -1.34% | 12,500 | 23億6082万 | +2.8% |
| 06/13 | 298 | 298 | 292 | 298 | +0.34% | 10,000 | 23億9294万 | +4.2% |
| 06/12 | 297 | 297 | 293 | 297 | 0% | 10,500 | 23億8491万 | +4.21% |
| 06/11 | 299 | 302 | 290 | 297 | -0.67% | 3,300 | 23億8491万 | +4.58% |
| 06/10 | 289 | 304 | 289 | 299 | +2.75% | 15,800 | 24億97万 | +6.03% |
| 06/09 | 291 | 291 | 289 | 291 | 0% | 3,100 | 23億3673万 | +3.93% |
| 06/06 | 291 | 292 | 291 | 291 | 0% | 3,200 | 23億3673万 | +4.3% |
| 06/05 | 289 | 293 | 289 | 291 | +1.04% | 5,900 | 23億3673万 | +4.68% |
| 06/04 | 288 | 288 | 287 | 288 | -0.35% | 1,800 | 23億1264万 | +3.97% |
| 06/03 | 292 | 292 | 289 | 289 | -0.34% | 1,900 | 23億2067万 | +4.71% |
| 06/02 | 279 | 291 | 279 | 290 | +1.05% | 22,900 | 23億2870万 | +5.45% |
| 05/28 | 283 | 289 | 283 | 287 | -1.37% | 2,400 | 23億461万 | +4.74% |
| 05/27 | 290 | 293 | 290 | 291 | +0.69% | 8,500 | 23億3673万 | +6.59% |
| 05/26 | 288 | 290 | 286 | 289 | +0.35% | 10,500 | 23億2067万 | +6.64% |
| 05/23 | 288 | 288 | 287 | 288 | +1.05% | 3,900 | 23億1264万 | +6.67% |
| 05/22 | 282 | 288 | 282 | 285 | +1.06% | 18,000 | 22億8855万 | +5.95% |
| 05/21 | 273 | 283 | 273 | 282 | +0.36% | 28,200 | 22億6446万 | +5.22% |
| 05/20 | 281 | 285 | 279 | 281 | +4.46% | 52,900 | 22億5643万 | +5.24% |
| 05/19 | 271 | 271 | 269 | 269 | -0.74% | 4,100 | 21億6007万 | +1.13% |
| 05/16 | 281 | 281 | 268 | 271 | -0.73% | 2,300 | 21億7613万 | +2.26% |
| 05/15 | 275 | 278 | 270 | 273 | -3.53% | 23,900 | 21億9219万 | +3.02% |
| 05/14 | 277 | 283 | 276 | 283 | +0.71% | 8,400 | 22億7249万 | +7.2% |
| 05/13 | 280 | 284 | 278 | 281 | +2.18% | 38,600 | 22億5643万 | +6.84% |
| 05/12 | 282 | 285 | 266 | 275 | +1.1% | 62,400 | 22億825万 | +4.56% |
| 05/09 | (IR情報)15:30 ウシオ電機株式会社による株式会社アドテックエンジニアリングの株式交換による完全子会社化に関するお知らせ |
| 05/09 | (IR情報)15:30 平成26年3月期決算短信〔日本基準〕(非連結) |
| 05/09 | 282 | 282 | 260 | 272 | -6.21% | 22,300 | 21億8416万 | +3.82% |
| 05/08 | 277 | 290 | 261 | 290 | +4.69% | 11,100 | 23億2870万 | +10.69% |
| 05/07 | 254 | 280 | 254 | 277 | +6.54% | 12,500 | 22億2431万 | +6.13% |
| 05/02 | 253 | 260 | 253 | 260 | +1.17% | 1,000 | 20億8780万 | 0% |
| 05/01 | 257 | 257 | 257 | 257 | +1.98% | 100 | 20億6371万 | -1.15% |
| 04/30 | 252 | 255 | 252 | 252 | -3.08% | 6,800 | 20億2356万 | -3.08% |
| 04/28 | 260 | 260 | 260 | 260 | -2.62% | 1,600 | 20億8780万 | -0.38% |
| 04/25 | 263 | 270 | 263 | 267 | +1.14% | 4,400 | 21億4401万 | +2.3% |
| 04/24 | 260 | 264 | 260 | 264 | 0% | 3,000 | 21億1992万 | +1.15% |
| 04/22 | 266 | 266 | 264 | 264 | +0.38% | 600 | 21億1992万 | +1.15% |
| 04/21 | 262 | 272 | 262 | 263 | +1.15% | 1,900 | 21億1189万 | +0.38% |
| 04/18 | 265 | 265 | 256 | 260 | -1.52% | 2,800 | 20億8780万 | -1.14% |
| 04/17 | 260 | 264 | 260 | 264 | +1.54% | 2,600 | 21億1992万 | -0.38% |
| 04/16 | 261 | 262 | 260 | 260 | +0.39% | 3,800 | 20億8780万 | -2.26% |
| 04/15 | 260 | 260 | 259 | 259 | -3.36% | 600 | 20億7977万 | -3.36% |
| 04/14 | 252 | 269 | 252 | 268 | +5.93% | 1,600 | 21億5204万 | -0.37% |
| 04/11 | 252 | 253 | 242 | 253 | +0.8% | 22,200 | 20億3159万 | -6.64% |
| 04/10 | 262 | 264 | 251 | 251 | +0.4% | 22,100 | 20億1553万 | -7.72% |
| 04/09 | 251 | 257 | 250 | 250 | -1.57% | 1,900 | 20億750万 | -8.76% |
| 04/08 | 260 | 260 | 248 | 254 | -3.05% | 9,000 | 20億3962万 | -7.97% |
| 04/07 | 263 | 263 | 262 | 262 | 0% | 300 | 21億386万 | -5.76% |
| 04/04 | 262 | 263 | 262 | 262 | +0.38% | 300 | 21億386万 | -6.09% |
| 04/03 | 265 | 270 | 261 | 261 | -3.69% | 3,400 | 20億9583万 | -6.79% |
| 04/02 | 256 | 273 | 253 | 271 | +5.04% | 5,400 | 21億7613万 | -3.56% |
| 04/01 | 253 | 258 | 251 | 258 | -1.15% | 6,000 | 20億7174万 | -8.51% |
| 03/28 | 260 | 261 | 260 | 261 | +0.38% | 2,100 | 20億9583万 | -7.77% |
| 03/27 | 253 | 260 | 251 | 260 | -1.52% | 4,900 | 20億8780万 | -8.77% |
| 03/25 | 269 | 269 | 260 | 264 | +1.15% | 2,600 | 21億1992万 | -7.69% |
| 03/24 | 251 | 272 | 251 | 261 | +1.56% | 4,600 | 20億9583万 | -9.06% |
| 03/20 | 265 | 265 | 257 | 257 | -5.17% | 10,600 | 20億6371万 | -10.76% |
| 03/19 | 267 | 271 | 264 | 271 | +1.5% | 6,900 | 21億7613万 | -6.23% |
| 03/18 | 267 | 271 | 266 | 267 | +2.3% | 16,600 | 21億4401万 | -7.93% |
| 03/17 | 264 | 283 | 260 | 261 | +1.56% | 46,400 | 20億9583万 | -10.31% |
| 03/14 | 283 | 283 | 249 | 257 | -11.68% | 132,800 | 20億6371万 | -12.29% |
| 03/13 | 291 | 305 | 290 | 291 | -1.02% | 17,900 | 23億3673万 | -1.36% |
| 03/12 | 291 | 295 | 291 | 294 | -2% | 2,300 | 23億6082万 | -0.34% |
| 03/11 | 296 | 300 | 295 | 300 | +1.35% | 3,300 | 24億900万 | +1.35% |
| 03/10 | 302 | 303 | 296 | 296 | -1.99% | 13,000 | 23億7688万 | -0.67% |
| 03/07 | 306 | 307 | 302 | 302 | -0.33% | 7,200 | 24億2506万 | +1.34% |
| 03/06 | 304 | 309 | 299 | 303 | -0.66% | 19,100 | 24億3309万 | +2.02% |
| 03/05 | 296 | 314 | 296 | 305 | +4.1% | 29,500 | 24億4915万 | +3.04% |
| 03/04 | 295 | 295 | 293 | 293 | -1.35% | 800 | 23億5279万 | -0.68% |
| 03/03 | 303 | 303 | 291 | 297 | -1% | 8,900 | 23億8491万 | +0.68% |
| 02/28 | 295 | 307 | 295 | 300 | +1.69% | 28,600 | 24億900万 | +2.04% |
| 02/27 | 288 | 307 | 288 | 295 | +1.37% | 23,700 | 23億6885万 | +0.34% |
| 02/26 | 285 | 305 | 285 | 291 | +0.34% | 12,900 | 23億3673万 | -1.02% |
| 02/25 | 285 | 303 | 285 | 290 | +2.47% | 20,500 | 23億2870万 | -1.36% |
| 02/24 | 290 | 295 | 280 | 283 | -2.41% | 19,600 | 22億7249万 | -3.74% |
| 02/21 | (5%ルール)水谷軍司(4.84%) |