Fortinet fell 2.45% to $160.11. This was largely stock-specific: the S&P 500 fell 0.16% while Technology peers (XLK) fell 0.31% that session, leaving about 2.1 points of the move unexplained by the market after adjusting for a 1.09 beta. Shares opened with a 2.47% gap down. This was the first session after Q2 2026 results. The move erased $3.07B of market value.

Fortinet fell 2.47% to $164.13, its biggest one-day drop in 4 weeks. This was largely stock-specific: the S&P 500 fell 0.20% while Technology peers (XLK) fell 0.53% that session, leaving about 1.9 points of the move unexplained by the market after adjusting for a 1.09 beta. Shares opened with a 1.22% gap up and reversed through the session and closed near the session low (1% of the day's range). The session traded into Q2 2026 results, released after the close that evening. The move erased $3.18B of market value.

Fortinet rose 4.99% to $161.95, its biggest one-day gain in 2 months. This was largely stock-specific: the S&P 500 gained 0.72% while Technology peers (XLK) fell 0.22% that session, leaving about 4.2 points of the move unexplained by the market after adjusting for a 1.09 beta. Shares closed near the session high (93% of the day's range), reclaimed their 20-day moving average and marked a 3rd consecutive advance. It came 2 sessions after the quarterly print. The move added $5.88B of market value.

Fortinet rose 0.67% to $154.25, on 2.1× average volume. Shares opened with a 7.04% gap up and closed near the session low (12% of the day's range). It came 1 session after the quarterly print. The move added $786.9M of market value.

Fortinet rose 2.16% to $153.22, its biggest one-day gain in 2 weeks, on 2.5× average volume. This was largely stock-specific: the S&P 500 fell 1.54% while Technology peers (XLK) fell 2.64% that session, leaving about 3.8 points of the move unexplained by the market after adjusting for a 1.09 beta. Shares opened with a 1.14% gap down and reversed through the session and closed near the session high (84% of the day's range). This was the first session after quarterly results: EPS of $0.90 vs $0.75 expected (a beat) and revenue of $2.05B vs $1.89B (a beat). The move added $2.48B of market value.