| 2026 |
| 01/20 | 4,025 | 4,057 | 4,018 | 4,056 | +0.82% | 3,290,100 | 6兆537億 | +6.85% |
| 01/19 | 4,052 | 4,060 | 3,992 | 4,023 | -0.84% | 3,600,400 | 6兆45億 | +6.54% |
| 01/16 | 4,015 | 4,075 | 4,003 | 4,057 | +0.95% | 3,417,300 | 6兆552億 | +7.93% |
| 01/15 | 3,970 | 4,035 | 3,965 | 4,019 | +1.59% | 4,730,700 | 5兆9985億 | +7.46% |
| 01/14 | 3,920 | 3,956 | 3,879 | 3,956 | +1.23% | 4,063,000 | 5兆9045億 | +6.34% |
| 01/13 | (自社株買い)取締役会(2025年5月20日)での決議状況(取得期間2025年5月21日~2025年12月23日) |
| 01/13 | 3,950 | 3,958 | 3,881 | 3,908 | +1.48% | 4,618,600 | 5兆8328億 | +5.51% |
| 01/09 | 3,842 | 3,884 | 3,831 | 3,851 | +0.71% | 4,115,400 | 5兆7478億 | +4.42% |
| 01/08 | 3,798 | 3,852 | 3,794 | 3,824 | +0.47% | 3,851,400 | 5兆7075億 | +4.05% |
| 01/07 | 3,788 | 3,817 | 3,778 | 3,806 | -0.83% | 4,660,000 | 5兆6806億 | +3.96% |
| 01/06 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 01/06 | 3,800 | 3,863 | 3,798 | 3,838 | +1.62% | 5,315,700 | 5兆7284億 | +5.24% |
| 01/05 | 3,698 | 3,785 | 3,698 | 3,777 | +2.55% | 5,956,800 | 5兆6373億 | +4.02% |
| 2025 |
| 12/30 | 3,691 | 3,713 | 3,682 | 3,683 | +0.16% | 3,830,700 | 5兆4970億 | +1.82% |
| 12/29 | 3,630 | 3,694 | 3,621 | 3,677 | +1.41% | 11,632,700 | 5兆4881億 | +2.03% |
| 12/26 | 3,638 | 3,642 | 3,605 | 3,626 | -0.58% | 2,980,900 | 5兆4119億 | +0.89% |
| 12/25 | 3,662 | 3,662 | 3,632 | 3,647 | -0.49% | 2,543,000 | 5兆4433億 | +1.73% |
| 12/24 | (IR情報)15:30 三井住友海上による国内劣後特約付無担保社債の期限前償還について |
| 12/24 | (IR情報)15:30 (開示事項の変更)当社子会社による孫会社設立に関するお知らせ |
| 12/24 | 3,731 | 3,759 | 3,646 | 3,665 | -2.76% | 5,304,600 | 5兆4702億 | +2.63% |
| 12/23 | 3,722 | 3,769 | 3,715 | 3,769 | +1.21% | 3,158,900 | 5兆6254億 | +5.99% |
| 12/22 | (5%ルール)日本生命保険(7.3%)ニッセイアセットマネジメント(0.11%)大樹生命保険(0.21%) |
| 12/22 | 3,795 | 3,802 | 3,708 | 3,724 | -0.72% | 3,275,500 | 5兆5582億 | +5.17% |
| 12/19 | 3,788 | 3,788 | 3,743 | 3,751 | +0.37% | 6,676,500 | 5兆5985億 | +6.38% |
| 12/18 | 3,727 | 3,758 | 3,700 | 3,737 | +0.43% | 5,253,600 | 5兆5776億 | +6.53% |
| 12/17 | 3,689 | 3,730 | 3,655 | 3,721 | +0.95% | 4,061,900 | 5兆5537億 | +6.62% |
| 12/16 | 3,786 | 3,788 | 3,680 | 3,686 | -2.64% | 4,899,000 | 5兆5015億 | +6.22% |
| 12/15 | 3,723 | 3,812 | 3,712 | 3,786 | +1.86% | 4,572,900 | 5兆6508億 | +9.64% |
| 12/12 | 3,648 | 3,733 | 3,630 | 3,717 | +3.36% | 5,917,700 | 5兆5478億 | +8.4% |
| 12/11 | 3,608 | 3,642 | 3,581 | 3,596 | +0.93% | 5,006,100 | 5兆3672億 | +5.52% |
| 12/10 | 3,605 | 3,613 | 3,525 | 3,563 | -0.7% | 4,775,700 | 5兆3179億 | +5.1% |
| 12/09 | 3,610 | 3,622 | 3,568 | 3,588 | +0.14% | 4,744,100 | 5兆3552億 | +6.34% |
| 12/08 | 3,513 | 3,583 | 3,511 | 3,583 | +1.79% | 5,254,200 | 5兆3478億 | +6.7% |
| 12/05 | (自社株買い)取締役会(2025年5月20日)での決議状況(取得期間2025年5月21日~2025年12月23日) |
| 12/05 | (5%ルール)ニッセイアセットマネジメント(0.1%)日本生命保険(7.3%)大樹生命保険(0.21%) |
| 12/05 | 3,520 | 3,538 | 3,507 | 3,520 | -1.15% | 4,791,100 | 5兆2537億 | +5.29% |
| 12/04 | 3,484 | 3,577 | 3,476 | 3,561 | +1.68% | 6,359,600 | 5兆3149億 | +6.97% |
| 12/03 | 3,530 | 3,541 | 3,472 | 3,502 | -0.54% | 4,499,300 | 5兆2269億 | +5.58% |
| 12/02 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 12/02 | 3,545 | 3,555 | 3,500 | 3,521 | +1.18% | 7,309,000 | 5兆2552億 | +6.44% |
| 12/01 | 3,461 | 3,488 | 3,434 | 3,480 | +0.43% | 5,531,900 | 5兆5972億 | +5.52% |
| 11/28 | 3,461 | 3,484 | 3,437 | 3,465 | +0.67% | 5,033,400 | 5兆5731億 | +5.32% |
| 11/27 | 3,424 | 3,462 | 3,413 | 3,442 | +0.73% | 3,761,700 | 5兆5361億 | +4.81% |
| 11/26 | 3,397 | 3,428 | 3,366 | 3,417 | +1.73% | 4,562,700 | 5兆4958億 | +4.21% |
| 11/25 | 3,470 | 3,470 | 3,340 | 3,359 | -2.18% | 6,551,700 | 5兆4026億 | +2.53% |
| 11/21 | 3,306 | 3,453 | 3,292 | 3,434 | +0.91% | 8,927,800 | 5兆5232億 | +4.95% |
| 11/20 | 3,328 | 3,429 | 3,328 | 3,403 | +3.34% | 8,289,300 | 5兆4733億 | +4.1% |
| 11/19 | (IR情報)16:30 2026年3月期第2四半期(中間期)決算短信〔日本基準〕(連結) |
| 11/19 | (IR情報)16:30 2025年9月中間期決算説明資料 |
| 11/19 | (IR情報)16:30 自己株式取得に係る事項の決定に関するお知らせ |
| 11/19 | (IR情報)16:30 自己株式の消却に関するお知らせ |
| 11/19 | (IR情報)16:30 当社子会社による孫会社設立に関するお知らせ |
| 11/19 | 3,329 | 3,340 | 3,265 | 3,293 | +0.15% | 5,156,000 | 5兆2964億 | +0.8% |
| 11/18 | 3,377 | 3,384 | 3,288 | 3,288 | -3.24% | 5,177,200 | 5兆2884億 | +0.64% |
| 11/17 | 3,358 | 3,398 | 3,345 | 3,398 | +1.55% | 5,566,000 | 5兆4653億 | +3.88% |
| 11/14 | 3,305 | 3,346 | 3,276 | 3,346 | +1.21% | 4,069,600 | 5兆3817億 | +2.36% |
| 11/13 | 3,294 | 3,306 | 3,285 | 3,306 | +0.76% | 3,195,100 | 5兆3173億 | +1.1% |
| 11/12 | 3,228 | 3,281 | 3,226 | 3,281 | +1.74% | 4,259,500 | 5兆2771億 | +0.34% |
| 11/11 | (自社株買い)取締役会(2025年5月20日)での決議状況(取得期間2025年5月21日~2025年12月23日) |
| 11/11 | 3,249 | 3,250 | 3,211 | 3,225 | -0.43% | 2,440,400 | 5兆1870億 | -1.41% |
| 11/10 | 3,224 | 3,239 | 3,211 | 3,239 | +1.22% | 2,560,800 | 5兆2096億 | -1.04% |
| 11/07 | 3,177 | 3,200 | 3,161 | 3,200 | +0.25% | 2,886,400 | 5兆1468億 | -2.32% |
| 11/06 | 3,123 | 3,195 | 3,121 | 3,192 | +1.59% | 3,713,600 | 5兆1340億 | -2.68% |
| 11/05 | 3,179 | 3,199 | 3,108 | 3,142 | -0.79% | 5,222,700 | 5兆535億 | -4.41% |
| 11/04 | 3,172 | 3,187 | 3,138 | 3,167 | -0.6% | 3,881,200 | 5兆937億 | -3.83% |
| 10/31 | 3,223 | 3,232 | 3,183 | 3,186 | -0.56% | 4,767,100 | 5兆1243億 | -3.51% |
| 10/30 | (5%ルール)トヨタ自動車(4.38%) |
| 10/30 | 3,197 | 3,204 | 3,167 | 3,204 | +0.56% | 15,596,600 | 5兆1533億 | -3.2% |
| 10/29 | 3,233 | 3,242 | 3,183 | 3,186 | -1.73% | 3,989,000 | 5兆1243億 | -3.95% |
| 10/28 | 3,291 | 3,293 | 3,242 | 3,242 | -1.55% | 3,941,200 | 5兆2144億 | -2.5% |
| 10/27 | 3,284 | 3,294 | 3,271 | 3,293 | +0.98% | 5,266,900 | 5兆2964億 | -1.17% |
| 10/24 | 3,250 | 3,272 | 3,238 | 3,261 | -0.55% | 7,108,400 | 5兆2449億 | -2.31% |
| 10/23 | (IR情報)15:30 自己株式の取得状況および取得終了に関するお知らせ |
| 10/23 | 3,290 | 3,302 | 3,268 | 3,279 | -0.85% | 4,091,800 | 5兆2739億 | -2% |
| 10/22 | 3,298 | 3,320 | 3,291 | 3,307 | -0.24% | 3,234,800 | 5兆3189億 | -1.52% |
| 10/21 | 3,360 | 3,370 | 3,315 | 3,315 | -1.04% | 3,649,900 | 5兆3318億 | -1.52% |
| 10/20 | 3,328 | 3,354 | 3,311 | 3,350 | +2.82% | 4,153,600 | 5兆3881億 | -0.65% |
| 10/17 | 3,283 | 3,305 | 3,252 | 3,258 | -2.83% | 4,575,200 | 5兆2401億 | -3.58% |
| 10/16 | 3,354 | 3,385 | 3,343 | 3,353 | -0.56% | 3,259,100 | 5兆3929億 | -1.03% |
| 10/15 | 3,365 | 3,393 | 3,350 | 3,372 | +2.34% | 3,695,500 | 5兆4235億 | -0.65% |
| 10/14 | 3,300 | 3,375 | 3,288 | 3,295 | -2.2% | 5,610,500 | 5兆2996億 | -3.06% |
| 10/10 | 3,367 | 3,375 | 3,315 | 3,369 | +0.51% | 5,004,900 | 5兆4186億 | -1.06% |
| 10/09 | 3,382 | 3,387 | 3,336 | 3,352 | -0.42% | 3,243,500 | 5兆3913億 | -1.61% |
| 10/08 | 3,350 | 3,390 | 3,347 | 3,366 | +1.75% | 4,542,400 | 5兆4138億 | -1.38% |
| 10/07 | 3,330 | 3,360 | 3,305 | 3,308 | -0.36% | 3,905,200 | 5兆3205億 | -3.19% |
| 10/06 | (自社株買い)取締役会(2025年5月20日)での決議状況(取得期間2025年5月21日~2025年12月23日) |
| 10/06 | 3,344 | 3,345 | 3,283 | 3,320 | +1.41% | 5,284,900 | 5兆3398億 | -3.01% |
| 10/03 | 3,287 | 3,326 | 3,274 | 3,274 | -0.73% | 3,005,000 | 5兆2658億 | -4.58% |
| 10/02 | 3,287 | 3,327 | 3,279 | 3,298 | -0.39% | 3,508,800 | 5兆3044億 | -4.1% |
| 10/01 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 10/01 | 3,329 | 3,341 | 3,289 | 3,311 | -1.34% | 5,126,300 | 5兆3254億 | -3.97% |
| 09/30 | (IR情報)15:30 当社の商号変更および三井住友海上火災保険とあいおいニッセイ同和損害保険の合併新会社の商号決定ならびに合併に向けた協議状況に関するお知らせ |
| 09/30 | 3,297 | 3,364 | 3,287 | 3,356 | +1.91% | 4,573,900 | 5兆3977億 | -3.01% |
| 09/29 | 3,336 | 3,341 | 3,287 | 3,293 | -3.52% | 4,779,500 | 5兆2964億 | -5.13% |
| 09/26 | 3,369 | 3,416 | 3,365 | 3,413 | +1.43% | 6,456,700 | 5兆4894億 | -1.98% |
| 09/25 | 3,398 | 3,402 | 3,353 | 3,365 | -0.38% | 4,999,200 | 5兆4122億 | -3.55% |
| 09/24 | 3,433 | 3,433 | 3,373 | 3,378 | -0.88% | 4,430,400 | 5兆4331億 | -3.43% |
| 09/22 | 3,429 | 3,443 | 3,408 | 3,408 | -0.06% | 3,103,500 | 5兆4814億 | -2.82% |
| 09/19 | 3,435 | 3,469 | 3,409 | 3,410 | -0.67% | 6,188,400 | 5兆4846億 | -2.96% |
| 09/18 | 3,480 | 3,486 | 3,433 | 3,433 | -0.95% | 4,013,300 | 5兆5216億 | -2.39% |
| 09/17 | 3,527 | 3,540 | 3,461 | 3,466 | -3.29% | 5,994,800 | 5兆5747億 | -1.48% |
| 09/16 | 3,538 | 3,595 | 3,528 | 3,584 | +2.63% | 4,890,800 | 5兆7645億 | +1.88% |
| 09/12 | 3,508 | 3,518 | 3,492 | 3,492 | +0.37% | 3,438,300 | 5兆6165億 | -0.48% |
| 09/11 | 3,513 | 3,523 | 3,470 | 3,479 | -0.97% | 3,581,400 | 5兆5956億 | -0.71% |
| 09/10 | 3,493 | 3,521 | 3,479 | 3,513 | +0.49% | 2,615,900 | 5兆6503億 | +0.46% |
| 09/09 | (自社株買い)取締役会(2025年5月20日)での決議状況(取得期間2025年5月21日~2025年12月23日) |
| 09/09 | 3,511 | 3,538 | 3,495 | 3,496 | -0.29% | 2,659,400 | 5兆6229億 | +0.26% |
| 09/08 | 3,504 | 3,541 | 3,493 | 3,506 | +0.29% | 3,169,500 | 5兆6390億 | +0.89% |
| 09/05 | (5%ルール)大樹生命保険(0.19%)日本生命保険(6.78%)ニッセイアセットマネジメント(0.1%) |
| 09/05 | 3,495 | 3,518 | 3,475 | 3,496 | +1.42% | 2,965,900 | 5兆6229億 | +0.87% |
| 09/04 | 3,431 | 3,470 | 3,420 | 3,447 | +1.17% | 3,329,800 | 5兆5441億 | -0.26% |
| 09/03 | 3,511 | 3,523 | 3,398 | 3,407 | -2.96% | 4,937,400 | 5兆4798億 | -1.13% |
| 09/02 | (IR情報)15:30 自己株式の取得状況に関するお知らせ |
| 09/02 | 3,470 | 3,517 | 3,465 | 3,511 | +1.44% | 2,305,500 | 5兆6470億 | +2.21% |
| 09/01 | 3,468 | 3,511 | 3,451 | 3,461 | -0.03% | 2,120,200 | 5兆5666億 | +1.17% |
| 08/29 | 3,501 | 3,503 | 3,462 | 3,462 | -1.45% | 3,261,100 | 5兆5682億 | +1.5% |
| 08/28 | 3,473 | 3,522 | 3,458 | 3,513 | +1.12% | 3,617,300 | 5兆6503億 | +3.26% |
| 08/27 | 3,499 | 3,515 | 3,458 | 3,474 | -1.73% | 3,961,100 | 5兆5875億 | +2.51% |
| 08/26 | 3,605 | 3,622 | 3,520 | 3,535 | -2.05% | 4,571,600 | 5兆6856億 | +4.77% |
| 08/25 | 3,640 | 3,654 | 3,588 | 3,609 | -0.61% | 2,626,600 | 5兆8047億 | +7.51% |
| 08/22 | 3,557 | 3,650 | 3,556 | 3,631 | +1.91% | 3,075,500 | 5兆8400億 | +8.81% |
| 08/21 | 3,593 | 3,619 | 3,556 | 3,563 | -0.83% | 2,924,000 | 5兆7307億 | +7.45% |