Post-market briefing
Tuesday, August 18, 2026
What moved in a real portfolio, and why. This is an actual Holdings Daily briefing as delivered, not a summary of one. Every claim links to the article it came from, and the email is blocked from sending if it does not: how we source.
A demo portfolio of widely-held names, briefed on the real schedule. Not a subscriber's holdings.
Portfolio Snapshot
Equities
| Ticker | Price | Day % | YTD % | 52W Range Pos | ||
|---|---|---|---|---|---|---|
| CRDO | $245.97 | -13.03% | +70.94% | 72% | ||
| IONQ | $44.12 | -5.81% | -1.67% | 31% | ||
| NVDA | $219.74 | -2.34% | +17.82% | 77% | ||
| AAPL | $310.03 | +1.45% | +14.04% | 71% | ||
| AMZN | $259.45 | -0.71% | +12.40% | 70% | ||
| JPM | $363.25 | +0.63% | +12.73% | 96% | ||
| MSFT | $481.63 | +0.27% | -0.41% | 65% |
Watchlist
| Ticker | Price | Day % | YTD % | 52W Range Pos | ||
|---|---|---|---|---|---|---|
| MRVL | $216.00 | -7.82% | +154.18% | 58% | ||
| ARM | $253.32 | -6.67% | +131.74% | 43% |
Market Overview
| Index | Price | Day % | YTD % |
|---|---|---|---|
| S&P 500 (SPY) | $767.36 | -0.69% | +12.53% |
| Nasdaq-100 (QQQ) | $717.51 | -1.69% | +16.80% |
| Dow Jones (DIA) | $532.91 | -0.24% | +10.89% |
Holdings Breakdown
CRDO closed at $245.97, down 13.03% on the session. The sharp pullback follows a long run in which Credo's high-speed connectivity silicon for AI data centers had it outperforming Nvidia by a wide margin in 2026, drawing attention as a critical infrastructure layer for scaling AI clusters. Earlier this morning, TD Cowen raised its price target to $300 while maintaining a Buy rating, citing analyst Sean O'Loughlin, though that upgrade did not arrest the session's decline.
MSFT closed at $481.63, up 0.27% on the session. The headline activity today centered on a peer comparison rather than Microsoft-specific news, with Broadcom cited as the next candidate to reach the same trillion-dollar valuation threshold Microsoft already occupies. The framing underscores how Microsoft's market cap has become a benchmark for mega-cap AI infrastructure ambitions across the semiconductor space.
NVDA closed at $219.74, down 2.34% on the session. NVIDIA's SEC filing disclosed entry into a material definitive agreement and the creation of a direct financial obligation, suggesting a significant capital or financing commitment is now on the books. The company is also being characterized as connecting AI infrastructure with over $500 billion in potential third-party capital, a structural shift aimed at making AI compute more broadly financeable. Fiscal Q2 results are scheduled for August 26, and historical patterns across prior quarters show the stock declining in the two days following its report even when results beat consensus.
Also moved: IONQ -5.81%, AAPL +1.45%, AMZN -0.71%, JPM +0.63%.
Watchlist
MRVL closed at $216.00, down 7.82% on the session. Tuesday's pullback came despite broader sector tailwinds, as Marvell had been cited among AI infrastructure supply-chain leaders riding semiconductor momentum into custom silicon and optical interconnects. The session-day reversal follows an extended run built on Marvell's positioning in custom silicon and data-movement infrastructure as AI bandwidth demands between chips intensify.
Also moved: ARM -6.67%.
Bottom Line
Tuesday's session left the portfolio mixed, with CRDO sliding -13.03% on company news and NVDA declining -2.34% after filing a material 8-K, while MSFT edged up +0.27% on its own company news to provide a partial offset.
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