After the Open · Market Scan · mangostracker.ai

This morning's setups

Thursday, September 10, 2026 — a read of the tape about 15 minutes after the opening bell.

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Semiconductor/AI-infra complex leads the tape lower - MU and SIMO both red out of the gate — Broad selloff hitting chips, memory, and AI-infra names hardest, consistent with the yields-driven AI-capex-worry rotation thats recurred through 2026; both of our recent memory-theme adds (MU, SIMO) are down on the open along with several non-held names in the same cluster.

Candidates worth a look

4 names flagged from the watchlist.

IDEA MU
Price
$993.65
That day
-3.3%

Down to $993.65 a day after we added $1500 at $1027.77, extending the recurring yields/AI-capex-worry chip selloff; no fresh company-specific news, just sector beta - watch for RSI to reset further before considering another add.

IDEA SIMO
Price
$266.67
That day
-4.0%

Down to $266.67, one session after opening a $2500 starter at $277.70; caught in the same broad semiconductor pullback with no company-specific news found - a reminder new positions can go against you immediately even on a clean thesis.

IDEA ALAB
Price
$280.53
That day
-6.7%

Astera Labs down 6.66% to $280.53, the sharpest mover in the AI-networking/interconnect cluster as the chip/AI-infra complex sells off on renewed yield pressure; not held, just flagging the scale of the move within a theme touching our own positions.

IDEA CRWV
Price
$89.23
That day
-6.0%

CoreWeave down 6.01% to $89.23, tracking the same AI-capex-worry rotation hitting neocloud/GPU-infra names alongside the memory/semi complex; not held.

What this is (and isn't)

A second, independent lens on the same watchlist.

Every weekday morning, about 15 minutes after the market opens, a separate job re-reads the same maintained watchlist used by the overnight trading bot — but this time against live intraday action instead of yesterday's close. It's looking for setups that only become visible once the market is actually trading: a gap that's holding, a name reversing off the open, a sector moving together.

Timing

9:30 AM ET
The market opens. The overnight trading decisions (see the Morning Note) were already booked hours earlier at yesterday's close.
~9:45 AM ET
This job fires, pulls live intraday quotes for the full watchlist, and this page updates with whatever it found — or didn't.
~1:00 PM ET
A third job takes an afternoon-session read — index structure, breadth, sector leadership — on the Midday Report page.

Archive

Past mornings' scans.

Notes

This page is market commentary generated against real intraday data, not a trade signal and not connected to the paper-trading account's cash or holdings. Nothing here is executed. Not investment advice.