A late-March rally led by large-cap techs and semiconductor suppliers pushed benchmarks higher into the quarter close, while small caps lagged. Market action today was driven by silicon-photonics deal flow, energy subsidies and policy headlines, leaving breadth narrow and investors parsing Fed and economic signals ahead of April.

Tech and energy led headlines on Mar. 31 as big capital commitments to data centers, AI and life sciences collided with oil supply shocks and a busy regulatory calendar. Investors should track policy rulings, energy outages and capital‑intensive projects that will set sector leadership into April.

$POET — $POET ($POET): Photonics Commercialization Update

$NVDA — $NVDA — NVIDIA Just Invested $2 Billion in Marvell — And Silicon Photonics Is the Reason Why

Microcaps With Thin Cash: Short Candidates

$ARM $BTC $MSOS — This week’s Alpha Research cycle centers on the AI hardware and software rotation, an energy rally driven by geopolitical supply shocks, and policy-driven rotations in cannabis and crypto. Analysts highlight strong earnings momentum in select semiconductors and pharma pipeline wins, while many high-quality franchises trade with stretched multiples and elevated execution risk.

$TSM $WMT $PYPL — Taiwan Semiconductor’s growth story is the day’s largest structural development, but a flurry of 8‑K filings, a consumer security incident at PayPal and targeted operational moves at Walmart Mexico create a mixed tape of opportunities and event risk for different investor types.

$MSFT — Compass Diversified’s $292.5M asset sale and Microsoft’s Copilot Cowork rollout led headlines today as market participants digested capital reallocation, enterprise AI product momentum and a string of sector-specific financing and partnership moves. Biotech debt reduction, a Wells Fargo initiation and regulatory-driven markets for PFAS and EV infrastructure rounded out the day’s market-moving themes.

$MSOS — The S&P 500 eked out a gain while the Nasdaq-100 extended its lead, but small caps lagged as banks came under pressure and investors rotated into utilities, materials and real estate. Semiconductor strength and sector-specific news — from cannabis regulation to renewables gains — set the tone ahead of key economic prints.

$BTC $MSOS — A sudden oil surge and fresh regulatory moves set a cautious but mixed tone across markets: utilities and energy infrastructure rallied on renewables and storage momentum even as finance, cannabis and crypto felt pressure from geopolitical, regulatory and fund-flow shocks.