According to Bloomberg, BlackRock has launched a space-themed ETF for European investors — the iShares Space Technologies UCITS ETF, under the ticker STAR. The ETF tracks an index that features a fast-entry IPO mechanism, allowing newly listed companies to be added to the index through an off-cycle rebalancing review within 10 to 30 days of their IPO, without having to wait for the next regularly scheduled rebalancing.