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BackTOPIX再編、市場の評価低い銘柄は「退場」へ 採用企業に緊張感
TOPIX再編、市場の評価低い銘柄は「退場」へ 採用企業に緊張感
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朝日新聞yesterdayBusiness2 min readJapanView translation

TOPIX再編、市場の評価低い銘柄は「退場」へ 採用企業に緊張感

Quick Look

日本取引所グループはTOPIXの構成銘柄を約4割減らす改革を開始し、浮動株時価総額上位97%に入らない683社を移行措置銘柄として発表。2027年10月の再評価で基準を満たせなければ28年7月までに除外される。

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Why It Matters

TOPIXは1969年に誕生し、かつては一度採用されれば外されることのない「安住の地」と見なされていたが、今回の改革で企業価値の継続的な向上が求められるようになった。

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東証株価指数(TOPIX)の構成銘柄数を約4割減らす大改革が始まった。企業にとっては一度採用されれば外されることはない「安住の地」だったTOPIX。企業価値の継続的な向上が求められ、緊張感が高まることになる。

7日午後4時。日本取引所グループ(JPX)が「移行措置銘柄」として公表した683社のリストには、最上位のプライム市場に上場する大企業や著名企業がずらりと並んだ。

消費者によく知られる食品メーカーをはじめ、外食、IT、百貨店、私鉄、テレビ……。2027年10月の再評価で基準を満たせないと、28年7月までにTOPIXの構成銘柄から除外されることになる。

JPXは今回、今年8月時点で市場で売買される「浮動株」の時価総額が上位97%に入れば、TOPIXに「残留」できるとした。移行措置の683社はこのハードルを越えられなかった。

これは、市場で売買されている株式の総額が、JPXの求める水準に達しなかったことを示す。

一般投資家へのメリットは?

Open Questions

  • 移行措置対象となった683社のうち、実際にTOPIXから除外される企業数はどの程度になるか
  • 除外される企業が株価や資金調達に与える影響の大きさはどの程度か
  • 今回の改革が他の株価指数にも波及する可能性はあるか

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This article was originally published by 朝日新聞.

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