Abstract: The piezoelectric actuator is a kind of actuation device that acts through the inverse piezoelectric effect. Due to advantages of high precision, low power consumption, compact size, and ...

CHAT has delivered much higher 1-year returns but comes with a steeper expense ratio and a narrower sector focus. VGT offers far greater diversification, lower costs, and a much deeper pool of assets ...

VGT is missing key tech stocks because of how they're categorized by sector. Nvidia, Microsoft, and Apple account for over 45% of VGT. QQQ has outperformed VGT since VGT's inception. Both ETFs ...

VGT is missing key tech stocks because of how they're categorized by sector. Nvidia, Microsoft, and Apple account for over 45% of VGT. QQQ has outperformed VGT since VGT's inception. When you look at ...

Cummins (CMI) is rated 'hold' after a strong run, with shares now trading at 19x forward earnings and approaching fair value. Despite Q3 revenue and EPS beats, CMI faced margin pressure from weak ...