Investor AB B, SE0015811963

Investor AB stock gains 1.00 percent to SEK 412.95 on Nasdaq Stockholm

Published on 09/25/2026 at 15:42 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Investor AB stock carried a market capitalization of SEK 1,265,129,300,357 on September 25, 2026. Its 52-week range was SEK 284.35 to SEK 426.80.

Modernes Bürohochhaus einer Beteiligungsgesellschaft in Stockholm am Wasser
Investor AB (ISIN SE0015811963) symbolisiert durch modernes Stockholmer Bürohochhaus mit gläserner Fassade am Wasser, Illustration mit AI erstellt.

Investor AB (ISIN SE0015811963) stock was trading at SEK 412.95 on Nasdaq Stockholm on September 25, 2026, at 3:40 p.m. CEST. The B share was up SEK 4.10, or 1.00 percent, from the prior close of SEK 408.85, giving investors a clear same-session comparison.

Market value reaches SEK 1.2 trillion

Investor AB's market capitalization stood at SEK 1,265,129,300,357 on September 25, 2026. The investment company therefore carried a market value that places the listed share firmly among Sweden's largest listed investment vehicles.

Trading volume was 952,191 shares at the same time, versus an average volume of 2,374,700 shares. That puts the session volume 59.90 percent below the average, even as the share price advanced 1.00 percent.

Share stays below yearly peak

The reference price of SEK 412.95 was SEK 13.85 below the 52-week high of SEK 426.80. The gap was 3.25 percent, while the stock stood SEK 128.60, or 45.23 percent, above the 52-week low of SEK 284.35.

This spread gives the daily move useful context. A 1.00 percent gain is positive, but the share still traded below its annual high, leaving the high at SEK 426.80 as the next clearly defined market level.

Portfolio structure remains central

Investor AB is an investment company whose share price reflects the market value assigned to its portfolio and balance-sheet structure. For investors, the combination of a SEK 1,265,129,300,357 market capitalization and a price 3.25 percent below the 52-week high provides a direct valuation reference.

The session also showed a contrast between price direction and participation. The share gained 1.00 percent while volume was 59.90 percent below its average, making the price change the stronger signal in the September 25, 2026 snapshot.

Stock trades at SEK 412.95

Investor AB stock was trading at SEK 412.95 on Nasdaq Stockholm on September 25, 2026, at 3:40 p.m. CEST. The price was 1.00 percent above the prior close of SEK 408.85.

Investor AB stock facts

  • Company: Investor AB (publ)
  • ISIN: SE0015811963
  • Ticker: INVE B
  • Trading venue: Nasdaq Stockholm
  • Price (as of September 25, 2026, 3:40 p.m. CEST): SEK 412.95
  • Market capitalization: SEK 1,265,129,300,357 (as of September 25, 2026)
  • 52-week range: SEK 284.35-426.80 (as of September 25, 2026)

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en | SE0015811963 | INVESTOR AB B | boerse | 70184073 | bgmi