What is the MDEV options turnover ratio?

Turnover ratio data is not available for MDEV in the current snapshot.

Where is MDEV open interest concentrated?

The OI distribution data is available in the per-strike chain table; concentration metrics for MDEV are not available in the current snapshot.

Why does volume-open-interest matter for MDEV 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.

First Trust Indxx Medical Devices ETF (MDEV) 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.

First Trust Indxx Medical Devices ETF (MDEV) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $2.0M, listed on CBOE, carrying a beta of 0.86 to the broader market. The First Trust Indxx Medical Devices ETF, referred to as "the Fund," aims to achieve investment outcomes that broadly align with the price movements and income generation (yield) of the Indxx Medical Devices Index, prior to accounting for the Fund's own operating expenses. public since 2021-06-24.

Snapshot as of Oct 13, 2026.

Spot Price: $21.39
Total Volume: 0
Total OI: 0
Call OI: 0
Put OI: 0

As of Oct 13, 2026, First Trust Indxx Medical Devices ETF (MDEV) has 0 contracts traded today against 0 contracts outstanding. Open interest breaks down as 0 calls and 0 puts. 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 MDEV volume & open interest Data Feeds Strategy Selection

Strategy selection on First Trust Indxx Medical Devices ETF 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 63.1% 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 MDEV volume and OI data

Splitting First Trust Indxx Medical Devices ETF contract activity into volume (daily flow) and open interest (cumulative inventory) per strike separates trading flow from accumulated positioning.

MDEV 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 MDEV 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 MDEV sits at 38 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 MDEV volume & open interest questions

What is the MDEV options turnover ratio?: Turnover ratio data is not available for MDEV in the current snapshot.
Where is MDEV open interest concentrated?: The OI distribution data is available in the per-strike chain table; concentration metrics for MDEV are not available in the current snapshot.
Why does volume-open-interest matter for MDEV 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.