✓Market closed - Last update: Jul 17, 2026, 11:06 AM ET
🏆Material / Earnings✓High confidence
Source: earnings_events
Changes History →Market closed · Next open: Monday 9:30 AM ET
Last update: Jul 17, 2026, 5:09 PM ETMarket closed·120 changes confirmed today
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BestStocks detects meaningful changes across price, volume, earnings, filings, valuation, analyst revisions, and risk signals — and shows you the evidence behind each one.
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BestStocks identifies what changed across companies and sectors, explains why it matters, and helps investors spot opportunities worth investigating.
✓Market closed - Last update: Jul 17, 2026, 4:44 PM ET
🛡Material / Earnings✓High confidence
What changed: Alcoa Corporation (AA) moved -6.13% from $46.85 to $43.98 on 2026-07-17 after reporting Q2 FY2026 earnings on 2026-07-16 that missed consensus: EPS of $2.12 vs. estimate of $2.33 (-9.01% surprise). Volume was 2.4x the 5-day average, and the stock reached a new 30-day low.
Source: daily_prices
Changes History →What's next
What to watch
Monitor AA's next earnings report and any management commentary on demand or cost pressures in aluminum markets.
✓Market closed - Last update: Jul 17, 2026, 4:43 PM ET
🏆Material / Earnings✓High confidence
What changed: Truist Financial Corporation (TFC) reported EPS of $1.23 vs. consensus estimate of $1.08, beating by 13.9% for Q2 FY2026.
Source: earnings_events
Changes History →What's next
What to watch
Monitor TFC's net interest margin trends and loan loss provisions in the next quarter to assess sustainability of earnings momentum.
✓Market closed - Last update: Jul 17, 2026, 4:50 PM ET
🏆Material / Earnings✓High confidence
What changed: Regions Financial Corporation (RF) reported Q2 FY2026 earnings per share of $0.68, beating consensus estimate of $0.63 by 7.6%.
Source: earnings_events
Changes History →What's next
What to watch
Monitor RF's next earnings announcement and any management guidance updates on net interest margin trends and loan growth outlook.
✓Market closed - Last update: Jul 17, 2026, 4:42 PM ET
🛡Material / Earnings✓High confidence
What changed: Citizens Financial Group, Inc. (CFG) moved -2.70% on 2026-07-17, the day after reporting Q2 FY2026 earnings that beat consensus by 4.00%, with EPS of $1.30 versus the $1.25 estimate.
Source: daily_prices
Changes History →What's next
What to watch
Monitor CFG's next earnings announcement and any commentary on loan growth, deposit trends, and net interest margin in a rising-rate environment.
✓Market closed - Last update: Jul 17, 2026, 4:41 PM ET
🛡Material / Earnings✓High confidence
What changed: Fastenal Company (FAST) moved -2.53% from $46.67 to $45.49 on 2026-07-17, three days after reporting Q2 FY2026 earnings on 2026-07-14. The company met EPS consensus at $0.33 per share.
Source: daily_prices
Changes History →What's next
What to watch
Monitor the company's next earnings report and any forward guidance updates for signs of margin or growth momentum.
✓Market closed - Last update: Jul 17, 2026, 4:39 PM ET
🛡Material / Earnings✓High confidence
What changed: The Goldman Sachs Group, Inc. (GS) moved -2.76% from $1095.46 to $1065.22 on 2026-07-17, three days after reporting Q2 FY2026 EPS of $20.98, which beat the consensus estimate of $14.47 by 44.99%. Sector peers also declined on the same day: BlackRock -1.94%, JPMorgan Chase -1.67%, and Morgan Stanley -5.71%.
Source: daily_prices
Changes History →What's next
What to watch
Monitor for financial sector commentary or macroeconomic data released around 2026-07-17 that may have triggered the coordinated peer decline.
✓Market closed - Last update: Jul 17, 2026, 10:02 AM ET
📊Valuation✓High confidence
What changed: Synopsys fell 9.05% to $379.27 amid a sector-wide semiconductor selloff driven by renewed concerns over the scale of AI spending, according to multiple sources tracking the Philadelphia Semiconductor Index's worst week since March 2025. The decline occurred despite no company-specific negative catalyst; SNPS had issued EPS and revenue guidance above consensus earlier in the period, and Benchmark initiated Buy coverage citing AI-driven outlooks.
Detected Jul 17, 3:30 PM ET
Changes History →What's next
What to watch
Monitor the Philadelphia Semiconductor Index and broader market stabilization; watch for any earnings or guidance updates from Synopsys that might differentiate it from sector weakness, and track whether the semiconductor sector's worst-week-since-March-2025 pattern reverses in coming sessions.
✓Market closed - Last update: Jul 17, 2026, 9:32 AM ET
What changed: Cadence Design Systems fell 8.25% to $334.56 intraday despite announcing a partnership with Rapidus Corporation on agentic AI for advanced-node SoC design (Business Wire, July 16). The positive news failed to support the stock, suggesting investors are weighing broader market or sector headwinds against the collaboration announcement.
Detected Jul 17, 3:30 PM ET
▤
Changes History →Related research: Why did Cadence Design Systems (CDNS) stock fall ~10% on July 17, 2026 — Kimi K3 and the EDA selloff? →
What's next
What to watch
Cadence's next earnings call and guidance, plus any updates on customer adoption of agentic AI tools and their contribution to forward revenues.
✓Market closed - Last update: Jul 17, 2026, 12:01 PM ET
What changed: Bloom Energy rose 6.10% to $219.35 as renewable energy stocks benefited from a return of fund inflows into the sector, powering their strongest quarterly rise since the early sustainability boom (Reuters, 2026-07-16). Volume of 6.9M shares was 1.18x normal for this point in the session.
Detected Jul 17, 1:30 PM ET
▤
Changes History →Related research: Why did Bloom Energy (BE) stock plunge ~14% on July 16, 2026 — despite a $1.7B AI-power deal? →
What's next
What to watch
Monitor for confirmation of broader renewable energy fund flows and watch for any earnings or operational updates from Bloom Energy that could sustain or reverse today's momentum.
✓Market closed - Last update: Jul 17, 2026, 11:32 AM ET
📊Valuation✓High confidence
What changed: No specific intraday catalyst identified. AXON declined 6.03% to $509.07 from $541.75; volume of 281,762 shares ran at 0.80x expected for this point in the session. Available evidence includes a July 2026 analyst overview noting Wall Street optimism on the name, but no dated event (earnings, guidance, rating change, product news, or regulatory action) tied to today's move.
Detected Jul 17, 3:30 PM ET
Changes History →What's next
What to watch
Monitor for after-hours news or official company announcements; check if broader security software or law-enforcement tech peers moved similarly today.
✓Market closed - Last update: Jul 17, 2026, 10:35 AM ET
📊Valuation✓High confidence
What changed: MaxLinear fell 3.45% to $71.83 amid a broader semiconductor sector sell-off driven by cooling AI enthusiasm and valuation reassessment, compounded by pre-earnings caution ahead of Q2 results on July 23, per web research. Volume hit 1,776,239 shares (3.10x historical average at this time of day), indicating elevated selling pressure as investors reassess how much of the stock's recent momentum is already priced in.
Detected Jul 17, 10:32 AM ET
Changes History →What's next
What to watch
MaxLinear's Q2 2026 earnings report on July 23; watch for any guidance changes or commentary on hyperscaler adoption trends and supply/cost dynamics in the AI data center segment.
Latest research
View all research →In-depth equity research from the BestStocks desk — earnings breakdowns, valuation deep dives, and sector analysis behind the changes we detect.
Stock AnalysisJuly 18, 2026 · 11 min read
Why did Alcoa (AA) stock fall ~6% on July 17, 2026 — a record Q2 that still missed, and an alumina guidance cut
Alcoa closed down 6.1% on July 17, 2026 — far more than its aluminum peers or the metal itself. Its Q2 set a revenue record and grew adjusted EPS more than fivefold, but it missed an elevated Street bar and cut full-year alumina guidance after cyclone-related outages at its Pinjarra refinery. The drop confirmed an aluminum-surplus bear case analysts had already been pricing in, and it layers dilution and integration questions from the pending South32 acquisition on top.
AARead →
Stock AnalysisJuly 17, 2026 · 11 min read
Why did Cadence Design Systems (CDNS) stock fall ~10% on July 17, 2026 — Kimi K3 and the EDA selloff?
Cadence fell about 10% intraday on July 17, 2026 — far more than the broad chip group, which pared its morning losses. Market coverage tied the EDA pair's underperformance to Moonshot's Kimi K3, which the company says designed a 45nm chip in simulation using only open-source tools. It's an early, reported proof of concept, set against a broad semiconductor retreat — and it overwhelmed Cadence's own Rapidus AI partnership and Benchmark's $450 Buy call.
CDNSRead →
Stock AnalysisJuly 17, 2026 · 9 min read
Why did Intuitive Surgical (ISRG) stock plunge ~13% on July 17, 2026 — despite a Q2 earnings beat?
Intuitive Surgical dropped about 13% intraday to a fresh 52-week low the morning after beating Q2 estimates. The catalyst was the outlook, not the quarter: full-year da Vinci procedure-growth guidance of 13.5–15.5% implies a second-half deceleration, with moderating U.S. demand and an ACA coverage headwind. A ~40x multiple left no room for it, and six firms cut targets within hours — while the rest of medtech barely moved.
ISRGRead →
Stock AnalysisJuly 16, 2026 · 10 min read
Why did Bloom Energy (BE) stock plunge ~14% on July 16, 2026 — despite a $1.7B AI-power deal?
Bloom Energy dropped about 14% intraday on the same day IDF and Oaktree announced a $1.7 billion project financing to power Nebius's AI build-out. The move reads as 'sell the news' — profit-taking on a stock priced north of 250x EV/EBITDA, a fuel-cell-complex derating (FCEL −16%), and a broad AI-capex risk-off — with a thinly-detailed deal and the prior week's short-seller overhang in the background.
BERead →
Stock AnalysisJuly 16, 2026 · 9 min read
Why did AST SpaceMobile (ASTS) stock drop ~15% on July 16, 2026? The $1B convertible, and the capped call behind it
AST SpaceMobile dropped about 14.7% intraday after pricing a $1.0 billion convertible notes offering. The 'dilution' headline skips the capped call that offsets conversion dilution up to a $149.20 cap. The more likely drivers were convertible-arb hedging, the signal of another raise, and a space-sector sell-off.
ASTSRead →
Stock AnalysisJuly 15, 2026 · 7 min read
Why did Dell stock drop 9.8% on July 15, 2026? An IBM-driven rally reversed
Dell closed down 9.80% at $412.68 on Wednesday with no confirmed fresh Dell-specific catalyst. Most of the move reversed Tuesday's 7% rally — which itself rested on a rival's warning, not Dell's news. Here is what the tape and the Form 4s actually show.
DELLRead →