UMC $23.46 volatile levels 2026-07-13 · 16:31 ET (after hours)

$UMC

United Microelectronics Corp · Semiconductors · $2.0T

▼ -0.88   (-3.62%)
Snapshot $23.46 · · 2026-07-13 · 16:31 ET (after hours)

The Levels

range held 2 sessions, both sides

Put Wall $22 held 2 sessions
Gamma Flip $15.6 +50.1% above flip
Call Wall $25 held 2 sessions
spot $23.46

Regime volatile · lots of action, but dealers hold the range.

Each wall is the strike carrying the heaviest open interest within 15% of price, call above as resistance, put below as support, pooled across all listed expirations. It is a structural positioning level, not a single expiry pin. Max pain is tracked separately.

The Read

$UMC is in long gamma at heat 46, which means dealers are pinning moves and damping volatility. The $25 call wall is untested yesterday, while the $22 put was pinned last session; this suggests that sellers have been active near $22 but resistance remains above at $25.

Where the market is positioned


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Free. No login. Real dealer positioning on $UMC, scored over a year of outcomes.

IV percentile · 1y 93 · premium rich Put / call · OI · all expiries 0.37 · calls-heavy

Plays at the Walls

Covered Call

$29 · Aug 21 · 30Δ

$1.23 premium  ·  50%/yr annualized

Cash-Secured Put

$21 · Aug 21 · 31Δ

$1.98 premium  ·  90%/yr annualized

Not investment advice · Informational only


How our calls on $UMC have played out

Over the last 21 sessions · n=22

22 Walls Called
5 Held 83% 3 pinned · 2 rejected
1 Broke 17%
16 Untested

$28 call wall

held 1 sessions running

$25 put wall

broke 1.8% on 2026-07-02


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Scored Levels


Implied vs Measured


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