What Happened?
Shares of aerospace and defense company Rocket Lab (NASDAQ: RKLB) jumped 6.8% in the afternoon session after the Trump administration announced a new peace deal that would lead to the reopening of the Strait of Hormuz.
The commercial aerospace story is distinct from the defense story here. Defense spending may moderate as the conflict resolves, but commercial aircraft orders respond to airline profitability. IATA had estimated the industry's 2026 fuel bill could exceed $350 billion, up from $252 billion the year before. With oil falling more than 5%, that cost burden begins to lift and airline margins recover.
More profitable airlines are more likely to advance orders and take deliveries on schedule. Gulf carriers operating routes through the now-reopening strait had been among the most disrupted; normalization of those corridors expands the commercial case for additional fleet capacity.
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What Is The Market Telling Us
Rocket Lab’s shares are extremely volatile and have had 86 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.
The previous big move we wrote about was 3 days ago when the stock dropped 6.2% on the news that the company's upcoming inclusion in the Nasdaq-100 Index prompted a pre-market rally and subsequent profit-taking.
The space company announced it will join the Nasdaq-100, an index of the 100 largest non-financial companies on the Nasdaq exchange, effective June 22. This news initially sent the stock soaring over 8% in pre-market trading, as inclusion in a major index can lead to increased buying from funds that track it.
Adding to the sector's excitement was enthusiasm surrounding the upcoming IPO for competitor SpaceX. However, the morning session decline suggested a “sell the news” event, where investors who bought in anticipation of the announcement sold their shares to lock in profits from the overnight rally.
Rocket Lab is up 45.2% since the beginning of the year, but at $110.35 per share, it is still trading 26.5% below its 52-week high of $150.23 from May 2026. Investors who bought $1,000 worth of Rocket Lab’s shares 5 years ago would now be looking at an investment worth $10,662.
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