Tradr 1X Short Innovation Daily ETF (SARK) Open Interest History
Open interest tracks the total number of outstanding options contracts. Rising OI alongside price moves can indicate growing commitment to the trend; declining OI suggests positions are being closed.
Tradr 1X Short Innovation Daily ETF (SARK) operates in the Financial Services sector, specifically the Asset Management - Leveraged industry, with a market capitalization near $70.2M, listed on NASDAQ, carrying a beta of -2.68 to the broader market. The fund is an actively managed exchange traded fund that attempts to achieve the inverse (-1x) of the return of the ETF for a single day, not for any other period, by entering into a swap agreement on the ETF. public since 2021-11-09.
Snapshot as of May 15, 2026.
- Spot Price
- $29.35
- Call OI
- 539
- Put OI
- 161
- Total OI
- 700
- Put/Call Ratio
- 0.00
As of May 15, 2026, Tradr 1X Short Innovation Daily ETF (SARK) has 700 total contracts outstanding across all expirations. Put/call OI ratio is 0.30 (call-heavy positioning). Open interest reflects accumulated positions from prior sessions; persistent growth indicates sustained directional or hedging interest, while sharp drops typically mean post-expiration clean-up.
How SARK open interest history Data Feeds Strategy Selection
Strategy selection on Tradr 1X Short Innovation Daily ETF options does not derive from any single metric in isolation. The open interest history view above sits inside a broader read: ATM IV currently sits at 33.3% and dealer gamma exposure is positive, so dealer hedging is mechanically mean-reverting. Combine the open interest history 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.
Learn how open interest is reported and how to read the data →
Frequently asked SARK open interest history questions
- What is the current SARK options open interest?
- As of May 15, 2026, Tradr 1X Short Innovation Daily ETF (SARK) has 700 total contracts outstanding across all listed expirations, split as 539 calls and 161 puts. Open interest reflects accumulated positions from prior trading sessions; it does not include today's volume until end-of-day reconciliation.
- What is the SARK put/call open interest ratio?
- Put/call OI ratio of 0.30 is call-heavy, often a directional bullish or upside-speculation signal.
- What does SARK open interest tell traders?
- Persistent OI growth indicates sustained directional or hedging interest; sharp drops typically mean post-expiration position cleanup. Heavy OI concentrations at specific strikes act as support and resistance levels because dealer hedging amplifies near those strikes - the gamma profile of the dealer book is concentrated there. Comparing today's volume to standing OI separates opening flow from closing flow.