BFLYVSUMC• Today (Normalized)

BFLY vs UMC (Butterfly Network Inc. vs United Microelectronics Corporation (NEW))

Showing Closing Date Range from Oct 1 to Oct 2, 2026.

Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.

WEEKEND • MARKETS CLOSED US Eastern Time (ET)

Weekend Market Recess

2:42 PM ET
2026-10-04

US markets are closed for the weekend. Displaying the most recent finalized trading session. Next regular session opens Monday at 9:30 AM ET.

Today's Alpha Margin

BFLY leads by +0.72% Alpha Spread Today

BFLY is trading at +4.92% while UMC is at +4.20% .

BFLY (4.92%) UMC (4.20%)
Dominance Spread0.72% Spread
Card 1 • Session Start 9:30 AM ET OPEN

Started At

Official opening auction price

BFLY
Gap: -0.63 (-6.70%)
$8.78
UMC
Gap: +0.59 (2.35%)
$25.67
Baseline Prior Closes $9.41 vs $25.08
Card 2 • Execution OFFICIAL CLOSE

Closed At

Finalized regular session close

BFLY
Settled close
$8.95
UMC
Settled close
$26.27
Verified Snapshot2:42 PM ET
Card 3 • Net Move BFLY LEADING

Gained / Lost Today

Net return against previous session close

BFLY
+$0.42
+4.92%
UMC
+$1.06
+4.20%
Performance Lead +0.72% Advantage

Today's Trading Range Position

Where each asset is currently trading relative to its Day Low and Day High

BFLY $8.95 (100% of range)
Low: $8.65High: $8.95
UMC $26.27 (88% of range)
Low: $25.52High: $26.37

Session Liquidity & Volume

Trading activity, share volume, and estimated dollar liquidity

BFLY Liquidity
Share Volume
4.48M
Est. Dollar Volume
$40.05M
UMC Liquidity
Share Volume
10.02M
Est. Dollar Volume
$263.10M

Session Ledger Comparison

Direct side-by-side breakdown of today's key auction and price metrics

MetricBFLYUMCHead-to-Head Advantage
Today's Return+4.92% +4.20% BFLY +0.72%
Net Dollar Move+$0.42+$1.06UMC higher move
Open Price$8.78$25.67 Gap: -6.70% vs 2.35%
Day High$8.95$26.37Session peaks
Day Low$8.65$25.52Session troughs
Intraday Spread$0.30$0.85High/Low spread
Share Volume4.48M10.02MUMC more active
Est. Dollar Volume$40.05M$263.10MUMC higher liquidity
Multi-Day Trajectory Charts•Interactive Historical Comparison

Explore BFLY 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.