Zions Bancorporation, National Association (ZION) Volume & Open Interest

Volume and open interest by strike show where trading activity and outstanding positions are concentrated. Clusters of OI often act as support and resistance levels.

Zions Bancorporation, National Association (ZION) operates in the Financial Services sector, specifically the Banks - Regional industry, with a market capitalization near $9.89B, listed on NASDAQ, employing roughly 9,195 people, carrying a beta of 0.78 to the broader market. Headquartered in Salt Lake City, Utah, Zions Bancorporation, National Association is a long-standing financial institution, founded in 1873. Led by Harris Henry Simmons, public since 1980-03-17.

Snapshot as of Aug 28, 2026.

Spot Price
$67.86
Total Volume
125
Total OI
33.6K
Call OI
14.3K
Put OI
19.4K
Gamma Concentration
0.12

As of Aug 28, 2026, Zions Bancorporation, National Association (ZION) has 125 contracts traded today against 33.6K contracts outstanding. Open interest breaks down as 14.3K calls and 19.4K puts. Turnover ratio is 0.00: typical maintenance flow relative to existing positions. Gamma concentration is 0.12: open interest is more distributed across strikes. Comparing today's volume to accumulated open interest reveals whether flow is opening new positions or closing existing ones, with heavy OI strikes often acting as support and resistance.

How ZION volume & open interest Data Feeds Strategy Selection

Strategy selection on Zions Bancorporation, National Association options does not derive from any single metric in isolation. The volume & open interest view above sits inside a broader read: ATM IV currently sits at 24.8% and dealer gamma exposure is positive, so dealer hedging is mechanically mean-reverting. Combine the volume & open interest data here with the volatility-skew surface, dealer-gamma exposure, max-pain level, and upcoming-events calendar to build a positioning thesis. Risk-defined structures (credit spreads, debit spreads, iron condors) are usually safer than naked positions while the regime is uncertain; the data on this page anchors the inputs but does not by itself constitute a trade thesis.

How to read the ZION volume and OI data

The two-panel chart above splits Zions Bancorporation, National Association contract activity into volume (daily flow) and open interest (cumulative inventory) per strike. The per-strike grid table beneath gives the precise numbers for the densest 30 strikes. Current put/call ratio is 2.05, put-heavy - protective or bearish positioning dominates. Total call OI of 14.3K versus put OI of 19.4K gives a put/call OI ratio of 1.36 - structurally a slower-moving signal than the volume-based ratio.

ZION flow vs positioning

Volume tells you what flows happened today; OI tells you what positions accumulated. Both can move in opposite directions: rising volume with falling OI means contracts are being closed (covering); rising volume with rising OI means new positions are being opened. The combination matters more than either alone for reading sentiment. The per-strike grid distinguishes the strikes attracting flow today from the strikes carrying accumulated inventory - high volume at strikes that also carry high OI typically means rolling activity (closing front-month, opening longer-dated), high volume at low-OI strikes typically means fresh directional positioning. Combined with the current positive dealer-gamma regime, large OI clusters tend to act as price magnets through expiration cycles.

Using ZION OI/volume data alongside other surfaces

Per-strike OI is the input to dealer-gamma calculations: strikes with elevated call OI generate gamma walls that dealers must hedge into as spot approaches them. The gamma-exposure page combines this distribution with the dealers' assumed-long-gamma assumption to project hedge flow. Volume cross-checks recent positioning shifts in the chain that haven't yet shown up in cumulative OI. Pair both with the term-structure view on the volatility page to determine whether the activity is concentrated in near-dated event hedging or longer-dated structural positioning. Front-month expiration for ZION sits at 21 days, so near-dated volume currently dominates the flow reading.

Learn how volume and open interest is reported and how to read the data →

Frequently asked ZION volume & open interest questions

What is the ZION options turnover ratio?
As of Aug 28, 2026, ZION turnover ratio is 0.00 (125 contracts traded against 33.6K contracts outstanding). A turnover ratio below 0.5 is typical maintenance flow against existing positions.
Where is ZION open interest concentrated?
Gamma concentration is 0.12: open interest is more distributed across strikes, reducing any single-strike pinning force. The full per-strike open-interest distribution is visible in the chain view.
Why does volume-open-interest matter for ZION options?
Volume tells you what is being traded today; open interest tells you what was already there. The combination separates opening flow (today's volume building new positions) from closing flow (today's volume unwinding existing ones), and locates the strikes that carry hedging-driven support or resistance based on dealer-gamma concentration.