OII vs UMC (Oceaneering International Inc. vs United Microelectronics Corporation (NEW))
Showing Closing Date Range from Sep, 15 to Sep, 16, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
Pre-Market Session In Progress
Current time is 2:13 AM ET. The regular US trading session begins at 9:30 AM ET. Showing closing prices from the prior official trading session.
UMC leads by +6.50% Alpha Spread Today
OII is trading at -2.24% while UMC is at +4.26% .
Started At
Official opening auction price
Previous Close
Baseline for today's market open
Gained / Lost Today
Net return against previous session close
Today's Trading Range Position
Where each asset is currently trading relative to its Day Low and Day High
Session Liquidity & Volume
Trading activity, share volume, and estimated dollar liquidity
Session Ledger Comparison
Direct side-by-side breakdown of today's key auction and price metrics
| Metric | OII | UMC | Head-to-Head Advantage |
|---|---|---|---|
| Today's Return | -2.24% | +4.26% | UMC +6.50% |
| Net Dollar Move | $-1.07 | +$0.92 | UMC higher move |
| Open Price | $47.38 | $22.49 | Gap: -0.63% vs 4.07% |
| Day High | $47.72 | $22.84 | Session peaks |
| Day Low | $45.54 | $22.25 | Session troughs |
| Intraday Spread | $2.18 | $0.59 | High/Low spread |
| Share Volume | 895.5K | 11.20M | UMC more active |
| Est. Dollar Volume | $41.74M | $252.40M | UMC higher liquidity |
Explore OII vs UMC Over Extended Timeframes
Today's session isolates intraday momentum. Switch to normalized multi-day timeframes to analyze historical correlations, cumulative returns, and divergence charts.