SPY (SPY) Open Interest
$771.02+0.56% (24h)
Total SPY futures open interest with a 30-day trend and per-exchange split.
$67.26M
Open Interest
USD notional, all venues
+1.95%
30-Day Change
vs $65.97M
10
Exchanges
with live SPY futures OI
Largest Venue
35.0% share
SPY Open Interest — Last 30 Days
Hourly total USD notional across all tracked exchanges
Rising open interest with rising price signals new money entering SPY longs; falling OI signals positions being closed.
SPY Open Interest by Exchange
Latest hourly snapshot · USD notional and market share