US Equities Mixed: Tech, Energy ETFs Gain, Retail Falls

US equity indexes traded mixed on Monday, August 17, 2026, with technology and energy sector ETFs posting gains while others faced declines. The Invesco QQQ Trust (QQQ) added 0.1%, reflecting some strength in technology. The Energy Select Sector SPDR ($XLE+WL) rose approximately 0.6%, mirroring gains in crude oil, which saw the United States Oil Fund (USO) up 1.2%. Conversely, the Financial Select Sector SPDR (XLF) eased 0.4%, and consumer discretionary funds like the SPDR S&P Retail (XRT) shed 1.3%. The healthcare sector saw a modest uplift, with the iShares Biotechnology ETF (IBB) climbing 1.8%.

In commodity markets, gold prices, tracked by the SPDR Gold Shares (GLD), were up 1.1%, and silver, via iShares Silver Trust (SLV), gained 2.1%. Natural gas futures saw a decline, with the United States Natural Gas Fund (UNG) down 1.2%. Cryptocurrency markets showed some upward movement, with Bitcoin advancing 1.8%.

### Story Arc / How We Got Here

This follows our earlier coverage ([RadNet Revises 2026 Guidance Upward After Record Q2 Revenue](/explore/radnet-revises-2026-guidance-upward-after-record-q2-revenue)) on 2026-08-09. RadNet Inc. (NASDAQ: RDNT) reported record quarterly revenue of $622.7 million and revised its 2026 financial guidance upward. The company's performance was driven by strong procedural volume increases and a growing contribution from its Digital Health segment. Investors will watch for continued growth in advanced imaging services and recurring revenue streams. · - Watch RadNet ($RDNT+WL) as the company beats revenue expectations and raises its full-year outlook, indicating strong operational momentum. - Monitor Annual Recurring Revenue ($ARR+WL) growth, which has nearly doubled year-over-year, sug…