SPIN Short Interest
State Street US Equity Premium Income ETF (SPIN) operates in the Financial Services sector, specifically the Asset Management industry, with a market capitalization near $24.5M, listed on CBOE, carrying a beta of 0.66 to the broader market. The State Street US Equity Premium Income ETF employs an actively managed strategy that is designed to provide current income while maintaining the potential for long-term growthThe fund invests in a portfolio of large- and mid-cap US stocks that the investment advisor believes exhibit desirable characteristics such as strong fundamentals, attractive valuations, and long-term growth prospects, while dynamically selling call options on a US large-cap exposure, such as the S&P 500 Index, to generate additional monthly incomeThe strategy utilizes a proprietary macroeconomic signal to determine the option strikes (moneyness) of the calls written, seeking to harvest higher option premiums during volatile market conditions to help provide more of a cushion against possible losses in the underlying portfolio, while harvesting lower option premiums during low-risk market conditions which may allow the fund to participate in greater potential market upside Led by Yie-Hsin Hung, public since 2024-09-05.
Short interest is the total number of shares currently sold short and not yet covered, reported bi-monthly by FINRA. Days to cover (short interest divided by average daily volume) indicates how long it would take short sellers to close positions, with higher values signaling greater squeeze potential.
- Settlement Date
- 2026-05-15
- Short Interest
- 6.7K
- Previous Short Interest
- 1.8K
- Change
- 264.20%
- Days to Cover
- 1.00
- Avg Daily Volume
- 10.9K
- Avg Days to Cover (24 reports)
- 1.27
Showing 24 bi-monthly FINRA short interest reports for State Street US Equity Premium Income ETF.
Learn how short interest is reported and how to read the data →
Frequently asked SPIN short interest questions
- What is the current SPIN short interest?
- As of the May 15, 2026 settlement, State Street US Equity Premium Income ETF (SPIN) short interest is 6.7K shares, a +264.20% change from the prior period. FINRA publishes short interest twice monthly on the 15th and last business day of each month under Rule 4560.
- What is the SPIN days-to-cover ratio?
- Days-to-cover is 1.00, calculated as short interest divided by average daily volume. It estimates how many trading days closing all short positions would consume given typical liquidity. Values above 5 days are commonly cited as elevated; values above 10 days are squeeze-relevant.
- How does SPIN short interest affect options pricing?
- High short interest changes options pricing through three mechanics: borrow-rebate effects (synthetic long stock trades below frictionless put-call parity by approximately the borrow rebate when shares are hard-to-borrow), gamma-squeeze setup risk (if dealers are short gamma against retail call buying, dealer hedge flow can amplify upward moves), and elevated event-vol pricing on names with squeeze potential. See the canonical short-interest documentation for the full mechanism.