Investor AB stock falls 0.80 percent to SEK 408.15
Published on 09/29/2026 at 07:46 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Investor AB B stock (ISIN SE0015811963) was last at SEK 408.15 on Nasdaq Stockholm on September 28, 2026, down 0.80 percent from the prior close of SEK 411.45. The share remained 2.81 percent above adjusted net asset value of SEK 397 per share reported for June 30, 2026, keeping the valuation close to portfolio value.
Stock stays below its yearly high
The latest quote was 4.37 percent below the 52-week high of SEK 426.80 and 40.99 percent above the 52-week low of SEK 289.50. Trading volume reached 1,689,692 shares on September 28, while market capitalization stood at SEK 1.3 trillion.
Investor is a Swedish investment company with listed holdings, private businesses and exposure to EQT. Its structure makes adjusted NAV more informative than a conventional operating-company sales multiple because portfolio values and subsidiary results drive shareholder value.
Adjusted NAV reached SEK 1,214.7 billion
According to FactorsToday on September 7, 2026, adjusted NAV was SEK 1,214.7 billion, equal to SEK 397 per share, on June 30. The same source reported aggregate market capitalization of SEK 1,225.3 billion at that date, placing the share classes 0.90 percent above adjusted NAV.
The comparison with the September 28 quote shows a modestly wider premium of SEK 11.15 per share, or 2.81 percent, against the June NAV reference. That premium is the key valuation signal because future returns depend more heavily on portfolio performance once a holding company trades near asset value.
Credit rating adds a balance sheet signal
MarketScreener reported on September 14, 2026, that Moody's raised Investor's credit rating to Aa2. The rating change adds a balance-sheet reference to the NAV discussion, although it does not remove the share's exposure to listed-market valuations and private-asset estimates.
Investor's reference listing is Nasdaq Stockholm under ticker INVE B.ST and ISIN SE0015811963, as stated by Global Banking and Finance Review. For investors, the central checkpoint is whether adjusted NAV continues to grow faster than any premium applied to the holding company.
Investor AB stock remains tied to NAV
Investor AB B stock was last at SEK 408.15 on September 28, 2026, at 5:29 p.m. CEST on Nasdaq Stockholm. The share's market value of SEK 1.3 trillion and its 2.81 percent premium to the June NAV frame the current valuation without relying on a conventional earnings multiple.
Investor AB B stock snapshot
- Company: Investor AB (publ)
- ISIN: SE0015811963
- Ticker: INVE B.ST
- Trading venue: Nasdaq Stockholm
- Price (as of September 28, 2026, 5:29 p.m. CEST): SEK 408.15
- Market capitalization: SEK 1.3 trillion (as of September 28, 2026)
- 52-week range: SEK 289.50-426.80 (as of September 28, 2026)
- Sector / Industry: Financial Services / Asset Management
