Beta Technologies Inc. (BETA) shares took flight in after-hours trading Tuesday after Amazon.com Inc. (AMZN) revealed it had quietly built up a substantial position in the electric aircraft maker.

Amazon's Electric Aviation Play

The e-commerce giant disclosed the stake in its quarterly 13-F filing with the SEC, which showed Amazon now holds 11.75 million shares of Beta Technologies. The news sent the stock climbing more than 20% in extended trading.

Beta Technologies operates in the aerospace sector, designing and manufacturing high-performance electric aircraft along with advanced electric propulsion systems and charging infrastructure. The company sells these products to operators worldwide as the aviation industry explores electrification.

This isn't Amazon's only bet on emerging technology companies. The company maintains positions in Astera Labs, IonQ, Marvell Technology, Nautilus Biotech, and notably Rivian, another electric vehicle play.

Getting Exposure to BETA

Investors looking to buy Beta Technologies stock have several options. The most direct route is purchasing shares or fractional shares through a brokerage platform. Alternatively, investors can gain exposure through exchange-traded funds (ETFs) that hold the stock, or through 401(k) strategies that invest in mutual funds holding industrials sector companies.

Since Beta Technologies operates in the industrials sector, relevant ETFs typically hold a diversified basket of liquid, large-cap companies tracking that segment.

Market Reaction

BETA Price Action: Beta Technologies stock traded at $20.45 in after-hours, up 21.94% at the time of publication Tuesday.