AMPLVSS• Today (Normalized)
Amplitude Inc. logo
SentinelOne Inc. logo

AMPL vs S (Amplitude Inc. vs SentinelOne Inc.)

Showing Closing Date Range from Sep, 17 to Sep, 18, 2026.

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

PRE-MARKET HOURS US Eastern Time (ET)

Pre-Market Session In Progress

12:32 AM ET
2026-09-21

Current time is 12:32 AM ET. The regular US trading session begins at 9:30 AM ET. Showing closing prices from the prior official trading session.

Today's Alpha Margin

S leads by +1.49% Alpha Spread Today

AMPL is trading at -4.42% while S is at -2.93% .

AMPL (-4.42%) S (-2.93%)
Dominance Spread1.49% Spread
Card 1 • Session Start 9:30 AM ET OPEN

Started At

Official opening auction price

AMPL
Gap: +0.15 (1.09%)
$13.96
S
Gap: -0.06 (-0.26%)
$23.13
Baseline Prior Closes $13.81 vs $23.19
Card 2 • Execution PRIOR SESSION

Previous Close

Baseline for today's market open

AMPL
Latest snapshot
$13.20
S
Latest snapshot
$22.51
Verified Snapshot12:32 AM ET
Card 3 • Net Move S LEADING

Gained / Lost Today

Net return against previous session close

AMPL
$-0.61
-4.42%
S
$-0.68
-2.93%
Performance Lead +1.49% Advantage

Today's Trading Range Position

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

AMPL $13.20 (12% of range)
Low: $13.09High: $13.97
S $22.51 (31% of range)
Low: $22.18High: $23.23

Session Liquidity & Volume

Trading activity, share volume, and estimated dollar liquidity

AMPL Liquidity
Share Volume
1.91M
Est. Dollar Volume
$25.25M
S Liquidity
Share Volume
13.01M
Est. Dollar Volume
$292.97M

Session Ledger Comparison

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

MetricAMPLSHead-to-Head Advantage
Today's Return-4.42% -2.93% S +1.49%
Net Dollar Move$-0.61$-0.68AMPL higher move
Open Price$13.96$23.13 Gap: 1.09% vs -0.26%
Day High$13.97$23.23Session peaks
Day Low$13.09$22.18Session troughs
Intraday Spread$0.88$1.05High/Low spread
Share Volume1.91M13.01MS more active
Est. Dollar Volume$25.25M$292.97MS higher liquidity
Multi-Day Trajectory ChartsInteractive Historical Comparison

Explore AMPL vs S Over Extended Timeframes

Today's session isolates intraday momentum. Switch to normalized multi-day timeframes to analyze historical correlations, cumulative returns, and divergence charts.