GRDN vs ZS (Guardian Pharmacy Services Inc. vs Zscaler, Inc.)
Showing Closing Date Range from Oct 6 to Oct 7, 2026.
Normalized cumulative comparison anchored at 0.00% baseline to illustrate pure alpha, return divergence, and market momentum.
Before the Regular Session
Current time is 3:12 AM ET. The regular US trading session begins at 9:30 AM ET. Showing closing prices from the prior official trading session.
ZS leads by +1.87% Alpha Spread Today
GRDN is trading at -1.26% while ZS is at +0.61% .
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 | GRDN | ZS | Head-to-Head Advantage |
|---|---|---|---|
| Today's Return | -1.26% | +0.61% | ZS +1.87% |
| Net Dollar Move | $-0.52 | +$1.30 | ZS higher move |
| Open Price | $40.77 | $216.46 | Gap: -1.04% vs 1.98% |
| Day High | $41.98 | $216.46 | Session peaks |
| Day Low | $40.40 | $209.70 | Session troughs |
| Intraday Spread | $1.58 | $6.76 | High/Low spread |
| Share Volume | 388.3K | 2.67M | ZS more active |
| Est. Dollar Volume | $15.80M | $570.92M | ZS higher liquidity |
Explore GRDN vs ZS Over Extended Timeframes
Today's session isolates intraday momentum. Switch to normalized multi-day timeframes to analyze historical correlations, cumulative returns, and divergence charts.