Applied Optoelectronics Inc (NASDAQ:AAOI) shares are trading higher on Monday as risk-on appetite lifts high-beta tech names and momentum trades.

The Nasdaq-100 is up 1.53% while the S&P 500 has gained 0.63%.

Here's what investors need to know.

Applied Optoelectronics stock is surging to new heights today.

Why is AAOI stock surging?