Applied Optoelectronics

AAOI

Market cap $14.8B

Investors searching for the biggest stock winners of 2026 may be surprised to learn they already own some of them through small-cap ETFs.

I initiate coverage of Applied Optoelectronics with a Buy rating. The main growth drivers are the 800G and 1.6T transceiver ramp, the expansion of production capacity, and the company's ability to turn hyperscale AI demand into revenue. I estimate these drivers can support about $1.48 billion of 2027 revenue and about $287.6 million of adjusted EBITDA if execution remains on track.

The optics complex is rallying together at midday Tuesday, and the leadership has flipped from yesterday.

Applied Optoelectronics is experiencing hypergrowth, driven by surging demand for 800G/1.6T optical transceivers and aggressive capacity expansion. AAOI raised full-year revenue guidance to $1.1B, with management projecting sequential quarterly growth and a potential $6B annualized run rate by mid-2027. Despite margin compression and significant dilution, AAOI's valuation remains attractive at under 10x NTM sales for a company targeting 120% CAGR through FY28.

The massive semiconductor rally is entering its third month, and it seems anything connected to semiconductors and data centers is going parabolic.

Shares of Applied Optoelectronics (NASDAQ:AAOI) are up 20% in midday trading to around $190, snapping back hard from a Friday close of $158.41.

AOI reported record revenue for Q1-2026. Demand is driven by data center and AI infrastructure growth. The company expects to exceed a billion in revenue for 2026.

Shares of Applied Optoelectronics (NASDAQ:AAOI) are down 9% midday Friday to roughly $154, leading a broader cool-off in AI optics names.

My read is bottleneck: CEO Thompson Lin told analysts on May 7 that actual demand is $1.4-1.5B while the $1.1B FY2026 guide is capped by production capacity. I'm bullish, and I hold a mid single-digit position in AAOI. My conviction is conditional on Q3 2026 confirming the revenue acceleration narrative. In a four-week stretch from March to April 2026, AAOI announced more than $324 million of new 800G and 1.6T orders from a major hyperscale customer.

AAOI's shares surge 635.5% in six months as 400G/800G demand builds ---- yet valuation, competition and uneven earnings add caution.